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Hi All,

As promised, please find attached our 1st proposal of our 8, 9 & 10 x 15" wheel for the Mangusta. The 8 would give another 1" track on either side (front), the 9 likewise on the back and the 10, a 2" wider track on either side.

It's early days and nothing is set in stone so your imput is welcome and valued.

I'll be able to let you know prices in the next couple of days.


Regards

Jonathan

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Images (1)
  • PAG-8910-1
Original Post

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Jonathan,

Very nice! I can't wait to see what the cost work out to be. There are several Mangusta owners in the UK and I'm sure it would not be too difficult to connect you with someone so as to verify details that my impact fit, as Patrick has offered for his GR4 project.

I think these look great. One thought would be to narrow the ribs a tad on the 8" wheel because if you compare them to an original wheel they are quite stout. I quite like what you've done as it looks more robust (and matches the 10" wheel more closely) but some may feel it's too much a departure. I realize that you are probably only able to reference the one image posted of the 10" wheel. Here's a stock (later) 8" "Rear" wheel as reference.

I'm looking forward to the numbers when you get that far.

Cheers,

Mark

Attachments

Images (1)
  • IMG_5185r
Hi Marc
I spoke to Jonathan this afternoon, and we are going to meet in the coming weeks . I will go and visit the manufacturing plant
Should we open a Pantera GR4 wheels topic ? George CowBoy ?
It now is in the pipeline... and I must say , after talking to Jonathan, that it looks serious . We are now considering alternatives between aluminium and magnesium,( pricewise) depending on use ( road or track ) but also an enlightened version of aluminium wheel for race use ONLY.( no sidewalks, no curbs, ... what about rumbling strips ? )
Not suspended weight is a key issue when it comes to racing, and I would appreciate to have further comments on that aspect from " those who know" .
Pantera boyzzzzzzzzzz, put one or two Campagnolo GR4 sest of wheels ( 10 and 14 ) on top of your Santa's list . It might happen this time, unless Cesare wakes up ! Cesare ?
I also must stress that jonathan has full product liability insurance, certificate of garantee, ... and I am sure we'll work something " intelligent, fit for the job,adequately priced ( hopefully ) and appropriate" together
Jonathan,

I agree with you about the more solid look. I'm just anticipating the purist response. Wink Please do whatever is needed to garner the most orders to get the project moving.

Either way, please put me at the front of the line. A nice fancy set of new wheels is just the kick in the butt I need to get my restoration project started.

Patrick, I hope the meeting goes well and that you FINALLY end up with some spare wheels for heavy track use. Exciting times!

Mark
I like the look of the wheel. I also agree with Mark, the ribs should be a bit slimmer and smoother around the edges to better match the original look. As with the Pantera Campy clones a larger diameter would be better to run more modern tire configurations. Perhaps at least a 17 inch diameter would be better. With 15 inch diameter there are very limited tires that can be used. Mostly BFG radial TA which is really old technology and not very sticky or good in the wet. If there are larger diameter wheels count me in for a set. Ben
Jonathan,
The presentation is very nice and the wheels look very good. It is the subtleties and the major theme that make the Mangusta wheelsso perfect for the car as the originals have a "hand made look". The unusual aesthetic part of the original is the I-Beam spoke. Also, as someone mentioned, the original car had deep dish wheels that had a large offset and were great looking, better than the final production wheel.
Having said that. Your wheels can be improved significantly in the spoke area from my viewpoint as a Mangusta purist. The blade on the I-Beam spoke is too wide, the section could be tapered from the base and rolled off at the end on both sides. This would also make it look narrower, like the original. If you executed it like the prototype wheel with a large filet as it blends with the rim it would look fantastic. This could be done on all sizes.
Since you are doing this in CAD, can you try what I have described as a comparison to what you have?
Dick Ruzzin
Jonathan,
One more. The wheels look modern, flat surfaces, corners and milled rather than cast. That is in the execution of the surfaces and intersections. Example, the rim section.
If you can spend a little time looking carefully at the original and softening intersections and slightly curving surfaces it will start to look more in character with it. This is a big detraction as the theme is the same but the wheel character is different.
Dick Ruzzin (+313-824-0539)
Dick is making some great comments to move the subtle details towards the original design. Nobody will have a better eye for the details than Dick does.

I for one will always keep my original wheels and "wear" them when the car is on display. I want to preserve my rare original wheels and, like with my Pantera, having a set of modern wheels/tires on the car when doing long road trips is what I'm looking for. I'm not as concerned if these new wheels don't replicate the originals exactly because I will never present them as such. I just love the original Mangusta wheel design (in the same way I love the original Pantera 10" wide Campys) and want a "modern" version for every-day use.

Keep up the great effort Jonathan!

Mark
Hi All,

I think thanks should go out to Dick for all his work that he is about to embark on!! Smiler

"My" design for the Mangusta wheel if I'm being totally honest was an amalgamation of Mangusta/Fiat 131 Abarth Group 4 and Porsche 911 RSR Campagnolo as it was also an after market wheel, similar in design to the Mangusta wheel.

We had designed the wheel with -12 to +12 ET on the 8". Along with the 9" that I proposed in the first place the 2 sizes would fit several applications and make the wheel more affordable due to it's (relative) bigger market.

The more I have got involved here, it hasn't taken me too long to realise that a stand alone wheel is needed for the Mangusta. This however makes the exercise more costly.

What I propose, after a little reading/research, is an 8 x 17 and a 10 x 17 to make full use of tyre availability. What we would do is to produce a brand new rim form (the wall of the wheel), top core (face back) and bottom cores (face), this way we can produce an enlarged exact copy of the original wheel.

A costing has been carried out for this and a set of 4 wheels in low pressure die cast LM7 alloy would cost £1740, around $2800, these figures are based on 60 front and 60 rear wheels. Wheels are guarenteed for race/rally applications and come with full product liability insurance.

Everyone would be involved in the design process and have their say and see the wheel evolve from CAD and technical drawings, through the production process to finished product.

Your thoughts....?


Regards

Jonathan
The price sound quite fair. Certainly cheaper than an original wheel. Low pressure cast should be cheaper. Forged may be more expensive. As long as the wheel carries more of the original styling, count me in. I am pleased you chose 17" as compared with 15". The tyre choices are far more and better and in my opinion will look nicer yet keeping the stock look. Very similar to how Campy clones look on the Pantera. Looks like they blend well with the original car yet still keeps a bit of the modern technologies so the car handles and drives better. I have a set of 18 inch customs on my car but if you make the 17" Mangusta clones I would far prefer a more original look. The closer the look of the wheel to the styling of the original Mangusta rim the better. I think there should be an option of painted silver vs. a polished look. I personally like the polished look. Ben
Hi All,

Well....it would seem that some people want 15's and some 17's, so the obvious thing to do here is start a list of who wants what.

Just so you know, a set of 4 x 15's, 2 x 8's & 2 x 10's would come in at £1640 sterling, based on 60 fronts and 60 rears.

If numbers are sufficient for both 15's and 17's then they can both be put into production, if youd like both...FANTASTIC!

Can you please put your name down followed by quantity of F (front) & R (rear), eg 1. Jonathan Sage 3f 3r.

Forged wheels by the way are a big NO, NO....a 6 figure tooling set up for starters!

CAN YOU PLEASE ADD YOUR NAME BY COPPY AND PASTE.


15"

1. Stoner: 3f (15x8); 2r (15x10) Assuming the final product more closely approximates the look of the original Mangusta wheel
2.
3.



17"

1.
2.
3.
Last edited by group4wheels
Further to my talk with Joinathan two days ago, it appears that the same amount of wheels ( 60 ) would be required to launch a minimum production for Pantera GR4 wheels.
Jonathan is working on pricing right now, so get ready if price is acceptable.
Lead time for delivery would be around 3 months after prototype is validated.
15" Dia. Wheels:

1. Stoner: 3f (15x8); 2r (15x10) Assuming the final product more closely approximates the look of the original Mangusta wheel
2. *Mark Charlton: 2f (15x8); 2r (15x10) Assuming the same as above
3.



17" Dia. Wheels:

1. Jerry Bruebaker: 3f (17x8); 3r (17x10)
2. *Mark Charlton: 2f (17x8); 2r (17x10)
3.

* = Are somewhat flexible and will likely go with the majority size if only one size is made and are not likely to purchase TWO sets.
(If no "*" and your name is on both lists then you want BOTH sizes).


Mark
What is the story on the GP IV wheels. Jonathan or Patrick - can you update us on these? Are we talking true to form 10 and 13" wide GP IV rims like the original campi's? 15" diameter. Aluminum or Mag. My vote is Alum. for ease of use on the street and price. I would be up for a set for sure (price dependant of course). Please let us all know any updates.

thanks
Jonathan and I are talking about 10 and 14 x 15, aluminium, street or track day, plus an " enlightened " aluminium version for racing use only.
Minimum order should be around 60 wheels front and 60 rears.
As I earlier said, get ready for Santa Claus...
The wheels would be an exact replica of my original GR4 magnesium wheels as seen on Candy 2862 at the Le Mans Classic races in 2008 and 2010.
Wheels would be "product liability garanteed and insured, certified, numbered, ... A professional job.
AH AH AH... Darlin' , we need a 60 wheels (per type firm order... I won't forget you ! Let me get back to you very soon . I'm good for 2 cars ( 8 wheels in total, 4 per type ) that leaves me with just 56 wheels to pay !( per type, of course....that's 112 wheels, more than my small garage can take )Even if it's not overexpensive, it still means ALOT of hard earned cash :>Wink)
quote:
Originally posted by Mark Charlton:
15" Dia. Wheels:

1. Stoner: 3f (15x8); 2r (15x10) Assuming the final product more closely approximates the look of the original Mangusta wheel
2. *Mark Charlton: 2f (15x8); 2r (15x10) Assuming the same as above
3. JMM3 2f (15x8); 2r (15x10) Assuming the same as above .



17" Dia. Wheels:

1. Jerry Bruebaker: 3f (17x8); 3r (17x10)
2. *Mark Charlton: 2f (17x8); 2r (17x10)
3.

* = Are somewhat flexible and will likely go with the majority size if only one size is made and are not likely to purchase TWO sets.
(If no "*" and your name is on both lists then you want BOTH sizes).


Mark
Mark, I may be mistaken, but those 10" 4-bolt Goose rear wheels you pictured in the early part of this thread closely resemble the Campy wheels used on the one-off DeTomaso/Shelby Sports 5000 racer DeTomaso tried to sell in the early '60s. And since that chassis apparently was the basis of the Mangusta, there's no reason those wheels won't fit perfectly. In 30 years, I've only ever seen a few sets of those rare wheels- on Steve Nanny's 'Goose Roadster and the Sports 5000 at the old museum, plus a loose wheel or two for sale here and there. Was the Roadster the source of your photo?
Yes Jack, it was the Mangusta Spyder. What a stunning car it is in person too. Although the wheels look VERY close to the ones on the Sport 5000, it looks to me that the Spyder wheels are wider and have a deeper dish to them (from the spokes back). Without a side-by-side comparison, I couldn't be sure. All I know is they are awesome looking wheels and look perfect on a Mangusta.

I was told there were originally only three sets of those wheels and they will fit any Goose.

I hope more guys come out of the woodwork to make enough ordering volume to get some copies produced.

Mark

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  • DeTomaso-Sport-5000_1
man I LOVE that racecar! Hey some of you are active on the F-chat 'Mangusta thread', do you think Jon ought to mention this wheel topic there? I suggested it to him, what do you all think? There are a number of Mangusta's owned by serious collectors who are NOT active here, but are there, seems if you want interest - gotta let em know?....just tryin to help Smiler
quote:
Originally posted by Denis C:
Who is Steve Nanny? Is he the prior owner of 8MA512?.


quote:
Originally posted by Mang:
Hey some of you are active on the F-chat 'Mangusta thread', do you think Jon ought to mention this wheel topic there? I suggested it to him, what do you all think? There are a number of Mangusta's owned by serious collectors who are NOT active here, but are there, seems if you want interest - gotta let em know?....just tryin to help Smiler


Yes. x 2
Originally posted by Mark Charlton:
15" Dia. Wheels:

1. Stoner: 3f (15x8); 2r (15x10) Assuming the final product more closely approximates the look of the original Mangusta wheel
2. *Mark Charlton: 2f (15x8); 2r (15x10) Assuming the same as above
3. JMM3 2f (15x8); 2r (15x10) Assuming the same as above .



17" Dia. Wheels:

1. Jerry Bruebaker: 3f (17x8); 3r (17x10)
2. *Mark Charlton: 2f (17x8); 2r (17x10)
3. benchu : 2f (17x8); 2r (17x10)

* = Are somewhat flexible and will likely go with the majority size if only one size is made and are not likely to purchase TWO sets.
(If no "*" and your name is on both lists then you want BOTH sizes).
Hi All,

I've joined up to F-chat and made contact with Daryl who took some pretty good measurements of a wheel for a project, something I need to be able to produce a better rendition.

To do an exact replica in either 15" or 17" (then it wouldn't be exact) we need to spread the word on all forums out there.

I will be introducing myself on F-chat tomorrow and will present something that may appease those wanting 15's...after I've presented it here 1st obviously. Smiler


Regards

Jonathan
quote:
Jack, Who is Steve Nanny? Is he the prior owner of 8MA512 / Fred P / Greek



If it's been sold, then yes- he's also the one responsible for writing the big check for the original CA restoration. Info's in a one-sentence line- pg 92 in Wally Weiss' book DeTomaso: The Man and the Machines, 2nd edition. There's a unique overhead shot of the Roadster, too.
Hi All,

Apologies for the lack of a recent update as I said I would, a change of ISP provider... and I'm still not on line, have had to come to my brothers to type this...but I got fed, so not all bad then.

I was always going to produce a 15" Campagnolo type wheel and my initial thought as previously stated was to make a wheel that would cover many bases and therefor make it affordable. I know that the Mangusta community is a rather small one and getting the required numbers together to produce a "Mangusta" wheel may prove fairly difficult.

I wasn't happy with my initial universal proposal and went back to the drawing board. I decided to put my short arms into my long pockets and realized that a new "rim form" would need manufacturing to produce that large 2nd step, small open section.

What you see below is a 8 x 15 and 9 x 15, both of which will be going into production and will be available for sale in 2 - 3 months. The 8" will be priced at £250 each and the 9" at £275.

Modern Tyre availability is not a problem for these wheel sizes.

There will be various offsets (back space) available so we can make the 9" sit where the 10" would.

Again, could interested parties please form an orderly queue. Smiler

8"

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Images (1)
  • PAG-1580DROPDOWNRIM03V1-1
quote:
Originally posted by Wellis:
I would be interested in a set of the 15", what do you need from me.
William


Hi William,

At present, absolutely nothing! Smiler

What I'll be doing is taking you all on a journey from concept/design through all the different stages of production to final product.

Perhaps if I start (another) list of "Interested parties". I'll start the ball rolling 'cause I sure want a set of these! Big Grin

1. Jonathan Sage 2 x 8's & 2 x 9's
2. William 2 x 8's & 2 x 9's
3. Mark Charlton 2 x 8's & 2 x 9's
4. Pal-A Grova (was this for this or Gr4 wheels)?
5.
quote:
Originally posted by Group 4 Wheels:
I was always going to produce a 15" Campagnolo type wheel and my initial thought as previously stated was to make a wheel that would cover many bases and therefor make it affordable. I know that the Mangusta community is a rather small one and getting the required numbers together to produce a "Mangusta" wheel may prove fairly difficult.


I'd be interested in a pair of 15" pre-L style Campys for my Pantera. Any timeline available?
quote:
Originally posted by Group 4 Wheels:
205's on the 8's and 225's on the 9's
Jonathan


Jonathan,

That's pretty narrow rubber on the rears, although historically correct. I think the factory sizes were: front 185/70/15 and rear 225/70/15. I do not think a 225/70/15 tire will fit a 9" rim, as the recommended width would be 7.5" for that tire width.

I feel something much beefier would be much better. I was hoping to run 295/50/15 tires which was why I wanted the 10" rims. Might be good to get input from other before committing to the narrower 9" wheel. I think on the 9" wheel a 275/50/15 would be the widest tire one would want to go, but a 225 would be too narrow.

Tire Size comparisons:
225/70/15 = 27.4" dia. (factory tire size) on a 6" to 7.5" wide rim
275/60/15 = 28" dia. on a 7.5" to 9.5" wide rim
295/50/15 = 26.7" dia. on a 8" to 10" wide rim

So, I renew my plea for the 10" wide rim. Wink and in silver for mine.

Mark
quote:
Originally posted by Group 4 Wheels:
Hi All,

I'll have another update on wheel design on Monday, these will be for 8's & 9's.

OK you guys, I'll make you a 10" rear if you get 40 pieces between you, I'll have a 10" proposal done early next week.

With my honesty cap on and not my salesmans cap....I'll always have 8's but if you want 10's, buy 3 as I can't guarentee that I'll ever make more than one set (60 wheels). I think I can sell a few to those with tarmac spec Fiat 131 Abarth Group 4 cars, it's a small market!

So come on, get on the forums and tell your friends....let's make it happen!


Regards

Jonathan
Hi All,

This is "The Wheel", which will end up on your car.....I hope!

We've made a few subtle modifications like tapering the back spokes and softening a couple of areas.

In the 8 & 9" picture the wheel is shown with a "block rim form" (no lip), the wheel is cast with the lip, giving that "aged" appearance, this was originally used to attach balance weights to. If wanted, the wheel can be supplied without the lip at no extra cost.

Once machining starts on the dies i will be taking orders....money.

I have an "Ace" up my sleeve which I'll play tomorrow! ....

Regards

Jonathan

Attachments

Images (1)
  • PAG-1580-90DROPDOWNRIMREV03SPOKEANGLEV2-1
Hi Jonathan,

I am probably just getting dizzy from the options, but I think a re-cap of your plan/pricing/detail and options may be in order.

Here is my understanding:
• you plan to make 8" and 9" wide wheels regardless because you have a wider (non-Mangusta) market for those sizes.
• cost for 8" wheel is £250 for the 8" and £275 for the 9"
• wheels will be available with or without the outer lip as a no-cost choice.
• wheel finish will be silver (I hope) or gold for up-charge of?
• back-spacing will be variable (with a range of ???) as a no-cost choice
• a 10" wide wheel will be available if orders can be secured for 40 pcs

Here are my questions:
• what will ordering/deposit (amount?) process be?
• what will the time/cut-off be for the decision regarding the 10" vs. 9" wheels (those who want the 10's will likely not want the 9's unless the 10's don't get produced)?
• how will wheels be packed/shipped to the Americas, and at what cost (per set of 4)? Do you have a distribution channel here yet?
• what will the wheel finish be (can you post a photo?)
• will you somehow be able to verify clearance and fit PRIOR to production? (there are a number of Mangustas in the UK and I'm sure we could connect you to someone able to assist with making a car/factory wheel available for measurements.
• how are wheels being constructed (cast/machined) and what "certification" will they carry?
• will the wheels be branded (raised or recessed?) as shown in your renderings?
• what is timeline from deposit to shipping?

Thanks again for the initiative and great work this far on this. I truly hope these DO get produced and appreciate what you've done to appease everyone.

Mark
Hi Mark/All,

I am probably just getting dizzy from the options, but I think a re-cap of your plan/pricing/detail and options may be in order.

Here is my understanding:
• you plan to make 8" and 9" wide wheels regardless because you have a wider (non-Mangusta) market for those sizes. correct
• cost for 8" wheel is £250 for the 8" and £275 for the 9" prices may vary by £5 or £10, depends on aluminium costs at time. 10" £315
• wheels will be available with or without the outer lip as a no-cost choice. correct
• wheel finish will be silver (I hope) or gold for up-charge of? silver is the default colour, gold a no cost option.
• back-spacing will be variable (with a range of ???) as a no-cost choice correct, back space is variable should you want a 9" for the back and space it out to a 10".
• a 10" wide wheel will be available if orders can be secured for 40 pcs correct

Here are my questions:
• what will ordering/deposit (amount?) process be? I'm currently setting up a secure payment page with Visa merchant services. 50% deposit with full payment before shipping.
• what will the time/cut-off be for the decision regarding the 10" vs. 9" wheels (those who want the 10's will likely not want the 9's unless the 10's don't get produced)? For me, it would be beneficial if everyone had 9's as on 1 batch (60) of 10's I would only get my money back....but like everyone here, I'm a petrolhead and would love to see the 10's made because looking at the bigger picture, it could lead to other things. NO CUT OFF TIME, GET 40 PIECES ACCOUNTED FOR AND I'LL MAKE THEM!

If you are thinking of 10's for the rear, buy a spare, I can't see another run being done.

• how will wheels be packed/shipped to the Americas, and at what cost (per set of 4)? Do you have a distribution channel here yet? Wheels will either be packed 1 or 2 to a box, depending on size, partitioned and strapped. I do not have any dealers as this would make the wheels more expensive. Cost to ship 4 wheels to USA is around £85 by Fedex.
• what will the wheel finish be (can you post a photo?) Will post a picture of my other wheels shortly.
• will you somehow be able to verify clearance and fit PRIOR to production? (there are a number of Mangustas in the UK and I'm sure we could connect you to someone able to assist with making a car/factory wheel available for measurements. Wheels will be guarenteed to fit. If someone knows someone here in UK with a Mangusta, GREAT! "Cross the T's and dot the I's".
• how are wheels being constructed (cast/machined) and what "certification" will they carry? Wheels are low pressure die cast and then go through various CNC processes. ISO 9000 certification.
• will the wheels be branded (raised or recessed?) as shown in your renderings? Branding is recessed, this can be deleted but unfortunately will carry a surcharge.
• what is timeline from deposit to shipping? 8's and 9's will be ready end of August, 10's are down to you guys. Deposits will start to be taken begining of July.

Thanks again for the initiative and great work this far on this. I truly hope these DO get produced and appreciate what you've done to appease everyone. .... Big Grin

I hope this helps, any other questions, feel free to ask.

Jonathan
Last edited by group4wheels
Translated for the US audience, as of June 17, 2011:

quote:
Originally posted by Group 4 Wheels:
Hi Mark/All,

I am probably just getting dizzy from the options, but I think a re-cap of your plan/pricing/detail and options may be in order.

Here is my understanding:
• you plan to make 8" and 9" wide wheels regardless because you have a wider (non-Mangusta) market for those sizes. correct
• cost for 8" wheel is $405 for the 8" and $445 for the 9" prices may vary by $8 or $16, depends on aluminium costs at time. 10" $607
• wheels will be available with or without the outer lip as a no-cost choice. correct
• wheel finish will be silver (I hope) or gold for up-charge of? silver is the default colour, gold a no cost option.
• back-spacing will be variable (with a range of ???) as a no-cost choice correct, back space is variable should you want a 9" for the back and space it out to a 10".
• a 10" wide wheel will be available if orders can be secured for 40 pcs correct

Here are my questions:
• what will ordering/deposit (amount?) process be? I'm currently setting up a secure payment page with Visa merchant services. 50% deposit with full payment before shipping.
• what will the time/cut-off be for the decision regarding the 10" vs. 9" wheels (those who want the 10's will likely not want the 9's unless the 10's don't get produced)? For me, it would be beneficial if everyone had 9's as on 1 batch (60) of 10's I would only get my money back....but like everyone here, I'm a petrolhead and would love to see the 10's made because looking at the bigger picture, it could lead to other things. NO CUT OFF TIME, GET 40 PIECES ACCOUNTED FOR AND I'LL MAKE THEM!

If you are thinking of 10's for the rear, buy a spare, I can't see another run being done.

• how will wheels be packed/shipped to the Americas, and at what cost (per set of 4)? Do you have a distribution channel here yet? Wheels will either be packed 1 or 2 to a box, depending on size, partitioned and strapped. I do not have any dealers as this would make the wheels more expensive. Cost to ship 4 wheels to USA is around $138 by Fedex.
• what will the wheel finish be (can you post a photo?) Will post a picture of my other wheels shortly.
• will you somehow be able to verify clearance and fit PRIOR to production? (there are a number of Mangustas in the UK and I'm sure we could connect you to someone able to assist with making a car/factory wheel available for measurements. Wheels will be guarenteed to fit. If someone knows someone here in UK with a Mangusta, GREAT! "Cross the T's and dot the I's".
• how are wheels being constructed (cast/machined) and what "certification" will they carry? Wheels are low pressure die cast and then go through various CNC processes. ISO 9000 certification.
• will the wheels be branded (raised or recessed?) as shown in your renderings? Branding is recessed, this can be deleted but unfortunately will carry a surcharge.
• what is timeline from deposit to shipping? 8's and 9's will be ready end of August, 10's are down to you guys. Deposits will start to be taken begining of July.

Thanks again for the initiative and great work this far on this. I truly hope these DO get produced and appreciate what you've done to appease everyone. .... Big Grin

I hope this helps, any other questions, feel free to ask.

Jonathan
quote:
Originally posted by garth66:
quote:
will the wheels be branded (raised or recessed?) as shown in your renderings? Branding is recessed, this can be deleted but unfortunately will carry a surcharge.

Just a question... Can the branding be put on the inside/backside of the rim rather than the outside?


It's on the inside as well! Big Grin

I would rather not delete it and I won't be offering the option to anyone else. I originally said it would be a FREE deletion but it's another CNC process, the cost for deletion is £10 per wheel.


Regards

Jonathan
Hi All,

By early next week I'll have the technical drawing for the 8 x 15" wheel which I'll post up. At this point I'll start a new thread (to keep things clear) for orders, once this hits 40 units for the 10", I'll take deposits and put the "Wheels in motion" Frowner, sorry, couldn't help it.

The 8 & 9" will be ready at the end of August, please bear in mind that the extra time it takes to get to 40 units is roughly the the amount of time you'll have to wait after the 8/9" arrives.


Regards

Jonathan
Hi All,

Sorry this took loner than expected. FEA (finite element analysis) has now been completed and what we have is a VERY strong and light wheel.

Things will really start to move quickly now with the possibility of the bottom die (face) starting to get CNC'd next week!!!

What I think we should do is star a new "Thread" for orders only and keep discussion/update "Here".


Regards

Jonathan

Attachments

Images (1)
  • PAG-1580WRSECTIONDWGG4W-1-1
I think you changed the design too much. The lack of a wheel weight rim on the front face, the flat blades with sharp corners, no provision for mounting the emblem and a very different central hub. Also a lack of detail, filets, etc. The bolt area seems to be a curved surface, that I cannot understand. Also the openings between the spokes have a flat surface at the central hub which really changes the design. The design you show looks like a brand new wheel, it should have the character of the hand modeled original, which it could. I think you are rushing this wheel and really do not care about having an authentic look.

These deficiencies were all discussed with you early in the dialogue about your proposal and were clearly displayed in the images that I sent to you.

Disappointing. A nice wheel but not a Mangusta wheel.
Hi All,

Not sure where the technical drawing has gone, can anyone help?

I was showing the wheel with a "Block form rim" just so one could compare it with what had gone before. Attached is a CAD drawing of how the wheel will be made which is with the "wheel weight rim"...there is a deletion option.

Dick, as previously stated, this is NOT a wheel solely for you guys. It's based on a VERY similar wheel that Campagnolo produced, an evolution of the Mangusta wheel if you like, which was an aftermarket wheel for the Porsche 911 amongst others and several group 4 rally cars of the period.

An exact replica can be produced but you can double the price and 60 fronts and 60 rears would need to be ordered.

There is now a 7" which will also go into production, the design has been signed off and the wheel as it is in this CAD drawing is what will be produced. The Group 4 Wheels logo can also be deleted.


Regards

Jonathan

Attachments

Images (1)
  • PAG-1580-90-10230611V1-1
Jonathon,
Originally you indicated that making a vintage appearing Mangusta wheel was your intent. That certainly got everyone excited. I can understand that others could use it for various other cars, that makes economic sense.

Why do their needs trump the vintage Mangusta look? I would think they would not care, or it might even be a marketing advantage to claim "original MANGUSTA look".

I could easily adjust the spacing and put my original rear wheels on the front and have the fronts widened to my specific specifications for the rear. This would give me the size I want for a lot less money and risk. That means my originals are also on the car, but I do not have spares.

I think the wheels you are doing should be modified to look like the originals, not the second design that came later as they will look like modern after-market wheels on a Mangusta.
DICK RUZZIN
quote:
Originally posted by Dick Ruzzin:
Jonathon,
Originally you indicated that making a vintage appearing Mangusta wheel was your intent. That certainly got everyone excited. I can understand that others could use it for various other cars, that makes economic sense.

Why do their needs trump the vintage Mangusta look? I would think they would not care, or it might even be a marketing advantage to claim "original MANGUSTA look".

I could easily adjust the spacing and put my original rear wheels on the front and have the fronts widened to my specific specifications for the rear. This would give me the size I want for a lot less money and risk. That means my originals are also on the car, but I do not have spares.

I think the wheels you are doing should be modified to look like the originals, not the second design that came later as they will look like modern after-market wheels on a Mangusta.
DICK RUZZIN


Hi Dick,

I think the wheel certainly looks like a Mangusta wheel, obviously we've had to make our own interpretation because we're making different sizes but a family resemblance is definatey there.

Anyway, things have been moving along nicely and all design work is now complete. Attached are drawings for 7, and 9 x 15's.


Regards

Jonathan

Attachments

Images (1)
  • PAG-1570WRSECTIONDWGEXPORTG4W-1
I trust that the Mangusta versions will be 4-bolt and not 5-bolt?

Just from curiosity, does this design duplicate another vintage wheel that is intended for the broader market you mentioned, or is it just somewhere between two existing designs (the Mangusta wheel and ???). If it is a unique design then given how close you are to the original Mangusta design, why not do as Dick suggests and make it highly accurate for at least the Mangusta. Would the "other" market be less interested in it, or even care in the same way we "Goose" owners do?

Also, my opinion (just one, I realize) is that having such a large and prominent "brand" on a vintage-focused wheel looks wrong. I'm pretty sure that if the wheels look right, fit right and perform as they are expected to, you won't need any markings on them. The owners will be passing out cards on your behalf to any prospective future customers. If the branding was in the same discrete manner used by Campagnolo, I doubt anyone would object.

I appreciate Dick raising the centre disc-mounting issue. Is he correct that there will not be a possibility to retain the DeTomaso disc in any way? It appears that way in the section view shown.

Mark
Jonathan,
Wonderful job!!! Your wheel designs look fantastic. Finally a modern replacement wheel for the Mangusta. What ever your final design comes out to be, I will be in line for 5 (spare included!) Your efforts are appreciated. CONGRATULATIONS and all the best with your project. MM.
quote:
Originally posted by Mark Charlton:
I trust that the Mangusta versions will be 4-bolt and not 5-bolt?

Just from curiosity, does this design duplicate another vintage wheel that is intended for the broader market you mentioned, or is it just somewhere between two existing designs (the Mangusta wheel and ???). If it is a unique design then given how close you are to the original Mangusta design, why not do as Dick suggests and make it highly accurate for at least the Mangusta. Would the "other" market be less interested in it, or even care in the same way we "Goose" owners do?

Also, my opinion (just one, I realize) is that having such a large and prominent "brand" on a vintage-focused wheel looks wrong. I'm pretty sure that if the wheels look right, fit right and perform as they are expected to, you won't need any markings on them. The owners will be passing out cards on your behalf to any prospective future customers. If the branding was in the same discrete manner used by Campagnolo, I doubt anyone would object.

I appreciate Dick raising the centre disc-mounting issue. Is he correct that there will not be a possibility to retain the DeTomaso disc in any way? It appears that way in the section view shown.

Mark


Hi Mark,

What had a big influence were 2 things, the rear wheel on the Mangusta Spyder as shown on page 1 and also the following 2 pictures:

Wheel will be 4 stud for those from here that want it and there will be a small deletion charge for the logo as wheel has to go through another cnc process.

Centre bowl is dished as this added a huge amount of strength to the wheel, a De Tomaso badge will be in the offering.


Regards

Jonathan

Attachments

Images (1)
  • campag_wheel
quote:
Originally posted by Mr. Mangusta:
Jonathan,
Wonderful job!!! Your wheel designs look fantastic. Finally a modern replacement wheel for the Mangusta. What ever your final design comes out to be, I will be in line for 5 (spare included!) Your efforts are appreciated. CONGRATULATIONS and all the best with your project. MM.


MM,

Thanks! Smiler


Regards

Jonathan
Hi All,

Not very exciting photo's I'm afraid, they should start later this week...I hope.

(No.1 is bottom picture & work up).

1. Please find attached the photo of the finishing cut of the lower bottom core face. As you see it is where the 7 8 and 9” upper bottom sections will locate.

2. Please find attached the picture of the underside of the 8” upper section of the bottom core in the cnc.

3. Find attached photo of 7” upper bottom core having the rear location profile machined.


Regards

Jonathan

Attachments

Images (1)
  • LOWERBOTTOMCOREREARTURN-1
Wheels are now going for heat treatment then will be back for machining and powder coating to customers requirements (all of which I'll post up).

7's and 9's will follow in the next couple of weeks.

There will be an initial run of just 60 units of each width, 7, 8 & 9 x 15, so if anyone is interested go to www.group4wheels.com , have a look around and go to ordering. This way I can get back to you with an all inclusive price including shipping.

Any other queries: info@group4wheels.com


Regards

Jonathan
Just FWIW, I pulled up detail photos of the wheels on the Ghia Sport 5000 (which was built from the original Shelby/De Tomaso 70P, and whose chassis and suspension were used for the Mangusta). The wheels it wears measure 8 1/2 x 15 front and 11 x 15 rear...I was surprised as I always thought they were 8 x 15 and 10 x 15, but the markings are quite clearly stamped. I never realized that any Campagnolo wheels were cast in half-inch increments either.
Fantastic work!!!

I just wanted to note, that on my car, I have one later rim, replaced due to an accident, that appears to have been cast in a metal mold vs a wooden version. It still had the DeT part number on it in grease pencil when we took the tire off! Production rims did not...

The corners are very crisp on the spokes where the production rims are very much rounded off! There is also a CAMPAGNOLO logo in positive relief on one spoke as well as a part number I believe.

Some of you guys with later cars may want to check this out more closely!

I'll try and remember to get a picture of this later. Am doing the engine-dectomy thing again....ugh!

Steve
Years ago, Gary Hall told me that Campagnolo's tooling would wear out over the course of a production run. When they went to do another run, they would first re-finish the tooling. According to Gary, sometimes they would get carried away and make the tooling too "sharp"; the result being, two wheels made by the same tooling could look significantly different, depending upon when they were cast. We were discussing Pantera wheels but I'm sure the same holds true for Mangusta wheels.
quote:
Originally posted by Italian STALLION:
When will the finished wheel be on the market?


Hi Italian STALLION,

The above picture is how all wheels are "finished" prior to orders being taken. We then drill the PCD, machine the ET and paint the wheels to the customers requirements.

FIRST MANGUSTA CUSTOMER TO ORDER A SET GETS FREE DELIVERY!


Regards

Jonathan
quote:
Originally posted by Italian STALLION:
Hi,
You have said in the past that the orginal center caps will fit, is that correct? The orginal center caps are held in with a thin wire retainer, will yours be the same? What size in widths are you going to offer? The final question, what will be the price for a set of 4 with your free freight offer?


Hi Italian STALLION,

Can you forward some pictures of the wheel with the badge out (close up) and one of the badge?

Sizes available are 7, 8 & 9" x 15.

2 x 8's & 2 x 9's in silver would be £1050.


Regards

Jonathan
quote:
Originally posted by Panterapatt:
Jonathan:

Any chance you guys can take the 10" wheel and make a 13" wide wheels for us Group IV widebody cars? What would that take?

So 10's for the front and a 13" back wheel. 15" diameter of course.

thanks

Lee


Hi Lee,

Possible but it would mean a minimum run of 60 wheels...so a not insignificant investment!


Regards

Jonathan
I recently met Jonathan Sage (owner of Group4wheels) at Brooklands Auto Italia event. Here's a picture of us together, me holding the wheel.
Jonathan is a great guy and very enthusiastic. I was able to have a good look at his wheels and I have to say they are extremely high quality!

Jonathan is going into production with the 10" rear. This will fill out that rear arch and look fantastic - just like the 1966 prototype!

He also wants to produce a new wheel for the front to go with the 10" rear. This makes sense for anyone running the rough sand cast magnesium wheels because the new rears will be perfect castings so they will not match the rough original front wheels. If you have the later die cast aluminium wheels, these are already perfect so you would only really need the rears.

Jonathan has asked me if there is any reason why he cant produce an 8" wide front wheel? As you know the original front is 7" wide. I spent some time today looking at the front of a Mangusta with the original 7" front wheels - 215/60 tyres. I wound it onto full lock in both directions and can't see and reason why he cant add another 1" on the inside. 215/60 is a little short on the front, maybe with an 8" wheel 225/60 would be better. I noticed the calliper will be slightly inside the wheel (like it should have been originally). Jonathan assures me his wheels have a lot more room inside them than the originals do, so the calliper will not be too close to the inside of the rim. Stones can get stuck between the calliper and the wheel and score the rim. I have experienced this on a GT5 Pantera with it's original wheels and 6 piston Willwoods that had very little clearance inside the wheel.

Adding another 1" to the inside of the front wheel would improve the scrub radius and make a small improvement in the steering. It's not possible to put it on the outside because the original front wheel already has way too much negative offset. The backspacing on the original wheel is 59.5mm, it should be a lot more. This is one of the reasons the Goose doesn't have very good steering, the low geared rack masks this somewhat. Another 1" on the inside would improve the backspacing to 84.5mm.

From what I can see any tyre rubbing issues on the front of a Goose are caused by tyres that are too tall so adding 1" on the inside can only improve things, right? What do you guys think?

Johnny

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Images (1)
  • P1030594
Johnny & Jonathan,

Glad you two have finally met. I am hoping that this new connection will enable Group4 to get the proper wheel specs and, more critically, fit a set of these wheels to a Mangusta and post photos.

I am ready to order a set, but don't want the responsibility of determining offsets etc. and really want to see a set of 8s and 10s on a Mangusta before ordering. To me, the dish in the hub would need to go (a fairly simple machine operation that Jonathan has confirmed can be done so it looks a tad more authentic) and seeing the wheels fit the body AND clear all the important bits of suspension etc. are the only hold-backs. I don't expect any issues, but I don't want to be shipping wheels back over the ocean because of fitment issues. I'm confident I'm not alone on this.

So, Johnny, please hook Jonathan up with Jonathan Root (really, is EVERYONE third person in the UK named Jon****? Big Grin) or Roger B so he can do a test fit. It would be very much appreciated by all and I'm certain very worthwhile to Group4 Wheels.

Mark
Wow, I'd like to put a set on my 'Merican muscle car too! They look a LOT like the mini-lites in terms of the spoke pattern, NOT the detail of the spoke.... even has 5 lug nut holes in it already! 5x4.5"? If I toss out all my wife's crap in her suitcase when we hit Europe in a few months, perhaps I can get a set smuggled home....


Johnny, Great explanation of the steering geometry stuff. I was sleeping through that class in high school.....oh, that's right, I never had that class! Seriously...great job explaining something that is basically black magic for most of the masses!
Ciao!
Steve
Hi All,

Gonna get the 3 J's together ASAP and trial fit a set of wheels. I'm in talks with the design team to see what we can do with the bowl and I think we can come up with something that will make everyone happy. As this will involve extra machine work, I would say the price may increase slightly, I'll let you know.

What I do need to know is, with a modified centre, how many of you would want a set? I'll need to get all wheels machined at the same time as it'll be very difficult to get sets machined in small numbers in the future.


Regards

Jonathan
quote:
Originally posted by "72 GTS:
Hello Jonathan,

Will you design the Pantera wheels ?
Is there any pic of the (nice) Mangusta wheels on a Pantera ?
regards
Philippe


Hi Philippe,

We are looking at the Pantera wheel, although this would be some time off if it does happen.
No pictures of our wheels on any DeTomaso at the moment, something that I hope will change soon.


Regards

Jonathan
Nice solution Jonathan.

While the true purists will not be happy with anything less than an exact replica of the original wheel, this will be an ideal solution for those of us looking to have some cool-looking (I LOVE the deep-dish of the 10" rears) "every-day" shoes for real driving, plus a "concours" set of original wheels with skinny, expensive XWX tires (tyres) for when we get invited to Pebble Beach.

I'll have mine in silver please.

Now let's see a set ON a Mangusta so we can be comfortable that the stance works, off-sets are right, and everything clears properly. Then I'm ready to order a set.

Cheers,
Mark
Hi Mark,

Thank you so much for your positive feedback.

Whilst I understand that the purist wants an exact copy, like I've told the Iso Griffo/Bizzarini boys...the numbers have to stack up and it's such an individual wheel (see attached picture) that unless they produce the numbers, nothing like it will get made...unlike this wheel. I think you sum it up very well Mark with the "every-day shoes" and if I may...Sunday best.

I hope that the wheel meets with the approval of others and we can get some sets out there...a lot of hard work has been done by a lot of people to get this wheel to this point.


Regards

Jonathan

Attachments

Images (1)
  • Campagnolo_7_inch_a
Jonathan,

Subject to seeing photos of a set on a Mangusta (and them looking/fitting correctly) before the payment is handed over, please consider this my order for a set. As shown.

Cheers,
Mark

BTW, who was the lucky "first order"?

quote:
Originally posted by Group 4 Wheels:

FIRST MANGUSTA CUSTOMER TO ORDER A SET GETS FREE DELIVERY!


Regards

Jonathan
Proper rear tires for 10" wide 15" wheels may be on the way.... depending on where you live and how rich you are.

Good news: Avon Tyres in England are supposedly releasing a brand new 295-50x 15" road-legal tire in V-speed rating (150 mph), perfect for Mangustas & Panteras w/10" wheels. This tire is exempt from Euro-union labeling since it's intended for cars that were first registered prior to 1990, which includes nearly all DeTomasos.

Bad news: the tires aren't quite released yet, the projected price will be about 315 Euros (about $406 ea.) plus taxes & shipping, and even Avon's website has no info on them yet. Obviously, no dimensional, handling or wear data is available, either. Jonathon, you may be in a better position than most to chase down this very strong rumor in your backyard.
Jonathan at Group4 Wheels casts the wheels and post-finishes (machining off-sets, drilling stud-holes) afterwards as required. He is promoting these wheels for use on several different cars and with several bolt patterns and off-sets. I can't speak for him, but I suspect it can be done if the off-sets you need are within what the casting range allows.

Mark

Attachments

Images (1)
  • Group4
quote:
Originally posted by Bosswrench:
Proper rear tires for 10" wide 15" wheels may be on the way.... depending on where you live and how rich you are.

Good news: Avon Tyres in England are supposedly releasing a brand new 295-50x 15" road-legal tire in V-speed rating (150 mph), perfect for Mangustas & Panteras w/10" wheels. This tire is exempt from Euro-union labeling since it's intended for cars that were first registered prior to 1990, which includes nearly all DeTomasos.

Bad news: the tires aren't quite released yet, the projected price will be about 315 Euros (about $406 ea.) plus taxes & shipping, and even Avon's website has no info on them yet. Obviously, no dimensional, handling or wear data is available, either. Jonathon, you may be in a better position than most to chase down this very strong rumor in your backyard.


Both 275/55 & 295/50 Avons available as well as 215/60, 225/60 & 225/65. All in stock.


Regards

Jonathan
quote:
Originally posted by Group 4 Wheels:
quote:
Originally posted by Mark Charlton:
Jonathan,

These are looking VERY nice. Can the "bowl" be machined deeper? It seems very odd to have the lug nuts embedded so deep. Is it possible to fit a socket in there? They look quite "snug".

Mark


Hi Mark,

Will look into it.



Regards

Jonathan


Hi Mark,

Bowls cannot be machined any deeper, there are 2 choices for the lug nuts to be exposed:

1. Wheel nut/stud pockets are machined shallower and longer studs are used with original nuts.
2. Pockets are left as is and longer nuts are used.


Regards

Jonathan
I have though of a way to fix the recessed wheel nut issue. If we use a short open nut like this:
http://www.ebay.co.uk/itm/16x-...&hash=item416ba7337e
we could use these to hold the wheels on and then put the original De Tomaso nuts on top because there would be enough stud sticking through the short nut.
This would make the wheels look much more like the originals.
I have not checked to see if the 60 degree taper is correct?

Johnny
Are these 100% accurate reproductions? No. Will they look amazing on my Mangusta? I think so. I will be mounting my "show-only" Michelin XWX 225/70-15 rear and 185/70-15 front tires to my stock 8" and 7" wheels and will be mounting my new 275/60-15 rears and 215/60-15 fronts to these new 10" and 8" wheels.

I'm looking forward to seeing how they fit, but from what I've seen on another Goose, it should be nice.

Attachments

Images (1)
  • mangusta_wheelsLR
I had my new BFG tires installed on my new Group4 reproduction wheels and decided to fit one set to the left side car and do some comparison photos. The rears are 10" (up from 8) with 275/60-15 tires and the fronts are 8" (up from 7) with 215/60-15 tires.

First a view from the rear:



It's very easy to see that almost all of the extra 2" in width falls where it needs to be — on the outside. The left side looks "correct" (IMHO) and the right side (factory wheel) is set so far in from the fender that it almost looks almost silly to me.

Here's a more direct comparison. The new wheel is on the right in this image pair shot from the front looking back (both sides compared).



This is the view standing behind and looking down. The tire does overhang the fender slightly, but aligns nicely in the same way the Campy 10" does on a Pantera.



Here is the face-on view of the Group 4 10" wide wheel:



And a comparison of the front wheels. The extra width of these seems evenly split inside and outside. They may rub inner fenders slightly, but I haven't checked that yet.



Front wheel:


Another angled view:



And inside the garage:



Overall I think these wheels are a great option. Especially if you want a spare set, or don't have any original-style wheels. There are some obvious differences in the details of the design and so they are not really true reproductions as a result. They are, however, very nicely made period-looking wheels available in sizes few Mangusta owners are able to enjoy — and at a cost that few Mangusta owners can feel is unfair. The only problems I encountered were:

• the original Mangusta lug nuts can't be used. While they DO fit, the diameter of the bore in the wheel is too small to allow a 22mm socket to fit and so they can't be tightened. I was fortunate to have a spare set of longer and smaller O.D. (at 19mm) Pantera lug nuts on-hand and so I was able to install the wheels.

• the rings supplied to retain the included (nice touch) De Tomaso logo wheel centers are slightly too thick and do not "retain" well. Again, I was fortunate to have a set of smaller diameter stainless rings from Wilkinson (or maybe Hall) and they fit like a charm.

Jonathan, thank you again for the initiative in producing these wheels. I am extremely pleased with the quality, finish, value and service (very quick shipping!) and I hope that these images help any other owners who were on the fence about ordering a set.

Mark
They look more correct then the originals do.

I'm tempted to say that I'd want more negative offset in the front, less in the rear, so I could put bigger rubber on in both locations but with a 'goose that only looks easy to do.

Can't do better then a side by side comparison test for sure.

Thanks for posting the pictures.

I'd be interested in hearing how the handling is affected. The 'goose having that early magazine road test where the rear kept coming around on the test driver.

I'm wondering if the car needs to be rebalanced again with the anti-sway bars and shocks?
quote:
Originally posted by PanteraDoug:
They look more correct then the originals do.

I'm tempted to say that I'd want more negative offset in the front, less in the rear, so I could put bigger rubber on in both locations but with a 'goose that only looks easy to do.


I completely agree. About half an inch less on the rear and about 1/2 an inch more on the fronts would be about perfect. The fronts might be possible. Time will tell. Of course, tire availability is one of the big problems and its only getting worse.

quote:


Can't do better then a side by side comparison test for sure.

Thanks for posting the pictures.

Thanks, my pleasure.

quote:

I'd be interested in hearing how the handling is affected. The 'goose having that early magazine road test where the rear kept coming around on the test driver.

I'm wondering if the car needs to be rebalanced again with the anti-sway bars and shocks?


Me too. Unfortunately, my car is a "Pushmobile" at the moment so any handling comparison tests will need to be carried out by others. I do know that many of the early handling woes can be traced to crappy, narrow bias ply tires. While there have been one or two spectacular incidents on modern tires, they are (thankfully) quite the rarity now. The Goose handles pretty well but, like a Pantera (and most other mid-engined rear weight-biased cars), it will bite if pushed beyond its limits. Those limits are reasonably high I'm told by other owners, but they are lower than a comparable Pantera.

Mark
Pushmobile explains why it is sitting high now?

I was thinking it might be safe to use solid billet aluminum wheel spacers in the front, attached to the front hub, then lengthen the studs.

What would concern me with that is again modifying the front track vs. the rear and having to play with that bias again.

The 427 Cobras had a bad reputation in the beginning because of "snap steer". They too are a 40/60 weight bias.

The difference is they are a front, mid-engine car.
quote:
Originally posted by PanteraDoug:
Pushmobile explains why it is sitting high now?

I was thinking it might be safe to use solid billet aluminum wheel spacers in the front, attached to the front hub, then lengthen the studs.

What would concern me with that is again modifying the front track vs. the rear and having to play with that bias again.

The 427 Cobras had a bad reputation in the beginning because of "snap steer". They too are a 40/60 weight bias.

The difference is they are a front, mid-engine car.


The suspension has settled because it remained loaded when I installed wheels (my lift set-up doesn't raise the body but rather lifts from the suspension. I'm not sure why it sits high, but I will eventually resolve that. I will likely do the spacers at the front once I've set everything height-wise. It'll be a while before I'm there however.

Mark
Mark, Thanks for taking the time to shoot these pictures. I think the wheels look great. I will post some more pictures when I get JB's car out. I intend to use short, open 16mm high nuts (I have bought these)http://www.ebay.co.uk/itm/280978994046?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649
with a 19mm head size to hold the wheel on and then put the original nuts over the top because quite a lot of thread will be sticking out of the nut, enough for the original nut to screw down on top of the open nut so that it sits closer to the original position instead of being sunk in the wheel. I think the nut will stick out enough to get the 22mm socket on (of course the outer nut will not need to be very tight because it will only be for show.
I have in the past ground sockets thinner to get around this problem.

The rear wheels have all of the 2" on the outside. The front wheels have the additional 1" on the inside where it needs it. Due to the excessive positive scrub radius on the front of the Goose (I measured it at 6") any additional width has to go on the inside to improve the steering slightly and make it grab and pull a little less under braking.
What the front really needs to make it steer properly is 3" added to the inside and removed from the outside! This is not possible of course and this would require completely new suspension too so it's all a compromise.

I think the best way to balance up the look would be to run the 225/50 front tyre instead of the 215/50 you have at the moment. It's only 10mm taller. I think the 215 is perfect for the 7" rim.

I have spent a long time studying the suspension on the Goose and have come to the conclusion the only way to really improve the front would be to completely redesign it and radically change the offset of the wheel. So it's not worth doing. All part of the character of the car is the excessive negative scrub radius of the wheels much like a GT5 Pantera, to change this would look ridiculous.

Doug, the reason the Goose has a bad reputation for snap oversteer is because the rear suspension bumps into toe out. The rear tubular chassis structure also flexes making things worse. This end of the car can be fixed!

Johnny
quote:
Originally posted by Johnny Woods:


Doug, the reason the Goose has a bad reputation for snap oversteer is because the rear suspension bumps into toe out. The rear tubular chassis structure also flexes making things worse. This end of the car can be fixed!

Johnny


Usually what I see with rear biased cars (40/60) is that you need to do everything possible to keep the rear from steering.

Usually it is as simple as setting the rear tires to about a 1/4" total toe in BUT if in the travel of the rear suspension the tires go from toe in to toe out, bumpsteer in the rear as it were, you have a very serious handling issue.

You could fix the goose in the rear by stiffening the rear springs to reduce travel or worst came to worst, installing strut rods like the front has.

I think the car just suffered from lack of factory developement. I think it can be made at least stable.

I stuck to my skinny fender Pantera. The steering chatter on the GT5's concerns me. I'm afraid to drive that car hard.

A Gp4, well that's another matter all together? Wink

I still love the 'goose, in spite of it's imperfections. I personally have never come across another car with as much character as the Mangusta.

225-50-15 P7's is what I have on the front (of my Pantera) on a 8" Campi. Makes the car feel like a go cart. Big Grin

I would think it would be a great tire for the front of the 'goose too.
Last edited by panteradoug

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