Skip to main content

Closed17 replies

Twin turbo Pantera revisited

G Guest
Well it's been awhile since I have had time to work on the Pantera. Work has been VERY busy (a good thing!). I sent the car over to Unique auto upholstry in Scottsdale, AZ for some interior updates and I have to say, they do AMAZING work! I wound up having the entire interior redone in Suede and a high grade vinyl (tough to tell it isn't real leather). The headgaskets started leaking out the side, so I pulled the engine to replace them, and took some measurements....the compression was 11.5 to 1, not 10.5 like I was orignally told! So I put some thicker steel layered head gaskets in enough to drop to compression down to 10 to 1, put head studs in (had the factory bolts), and found a problem with the cam. The drive gear had wear on a couple of teeth, and it was wearing the distributor gear. So I know have a new cam...a bit more aggressive, yet still idles...like a Pantera should! Smiler I should have it on the dyno next week to get her dialed back in. Last go around it put down 730hp to the tires, and was quite....entertaining to drive! Smiler Were going to shoot for 1000 on E85. We installed a flex fuel sensor so I can run any mixture of pump gas and Ethanol. The ECU will automatically correct fuel, timing, and boost accordingly. We are also installing wheel speed sensors for much needed traction control! I'll post some pictures up shortly, once my internet connection is a bit faster! Smiler
Original Post

Replies sorted oldest to newest

JS Jason S. (Guest)
I am running the ProEFI 128 ECU. www.proefi.com Flex fuel is such a great thing to replace racing fuel.

The engine is 377 c.i. Cleveland with Manley Rods, and J.E. pistons. I had a custom ground cam made from Comp cams. The cylinder heads are ported and polished, with roller rockers and triple valve springs. I am using a modified Weind intake with direct port injection and a wilson carb to throttle body converter. The turbos are twin T66 turbos.

I'll get some pics up shortly.

If your interested in the ProEFI for your project, let me know, I'll hook you up (I own the company).
Last edited {1}
panteraturbopanteraturboMember
Sounds like quite the potent combo. I look forward to seeing the pictures.

I thought there was a pantera owner affiliated with ProEFI but I scoured the threads and couldn't find the thread. Seeing as our specialty is custom fuel injection installation and tuning I was interested in trying out the software and such as the hardware sounds pretty nice. As far as my car goes I just finished swapping out the electromotive for a Haltech (we are a dealer so the price worked for me) and I dont plan to do it again for quite some time. I like wiring.....but not that much. We will be doing EFI on our Meteor so maybe we can talk then.
JS Jason S. (Guest)
quote:
Originally posted by PanteraTurbo:
Sounds like quite the potent combo. I look forward to seeing the pictures.

I thought there was a pantera owner affiliated with ProEFI but I scoured the threads and couldn't find the thread. Seeing as our specialty is custom fuel injection installation and tuning I was interested in trying out the software and such as the hardware sounds pretty nice. As far as my car goes I just finished swapping out the electromotive for a Haltech (we are a dealer so the price worked for me) and I dont plan to do it again for quite some time. I like wiring.....but not that much. We will be doing EFI on our Meteor so maybe we can talk then.


LOL....wiring is alot like getting a root canal for me! My guys enjoy it, so it works out. Smiler The software can be downloaded from our website. Feel free and contact me with any questions you may have!

Jason.
JS Jason S. (Guest)
quote:
Originally posted by PanteraTurbo:
Very nice! Beautiful detail on the engine and I really like what you did with the interior. The engine bay makes the perfect display for your ECU. Should get LOTS of attention.


Thanks! I can't wait to get it finished up and start driving it again. There is some really high dollar exotics in my car club (bugatti Veyron, Mclaren SLR's, Lambo's, Ferrari's etc...) The Pantera still gets the most attention! Smiler
Last edited {1}
JS Jason S. (Guest)
The manifolds were done by Evil Motorsports in Phoenix. The cylinder heads are the australian 2V heads. I'll get some more pics up next week. I am hoping to have time to dyno it Monday.

I'll tell you it was a struggle to keep the cleveland with all the new crate engines available from the O.E.'s...some REALLY powerful stuff available over the counter!
panterrorpanterrorMy 74 GTS
quote:
Last go around it put down 730hp to the tires, and was quite....entertaining to drive! Smiler Were going to shoot for 1000 on E85.


That's some great work Jason and E85 is a great choice for boosted engine. Is there an intercooler in that induction circuit? How much boost are you running with the E85 and/or pump fuel. Curious as why you stuck with a Cleveland block at that power level. You're tempting fate every time you're on the boost at that power level with the good ole Cleveland iron.

Take care,
Kelly
JS Jason S. (Guest)
quote:
Originally posted by Panterror:
quote:
Last go around it put down 730hp to the tires, and was quite....entertaining to drive! Smiler Were going to shoot for 1000 on E85.


That's some great work Jason and E85 is a great choice for boosted engine. Is there an intercooler in that induction circuit? How much boost are you running with the E85 and/or pump fuel. Curious as why you stuck with a Cleveland block at that power level. You're tempting fate every time you're on the boost at that power level with the good ole Cleveland iron.

Take care,
Kelly


As you know, air to air's aren't a feasable choice for a pantera, and air to waters are a plumbing nightmare for the pantera. So I chose intercooling with staged injection using upstream PCI (post compressor injectors). The setup was originally designed for injecting methanol on top of gasoline. At the time, E85 was not available at any gas stations in driving distance. So now with E85 available, I don't need to run the methanol. The turbochargers are large enough that at the boost levels I run, the air doesn't get too hot. I was running 14psi before, and 4th gear pulls, the air temps would only get up to about 145degrees. I was making a little over 700hp to the tires. Since I lowered the compression, and put a better cam in, I'll be running about 18psi on E85. Should do about 800 to 850 at that boost. I am running the cleveland basically because it was already in the car! Smiler Until I prove it can't handle it...I'll stick with it. Alot of engines get a bad rap for blowing up because the tune isn't right. So...we'll see!
demopuardemopuarMember
Maybe the motor can take it with a good tune and not too much core shift, but I thought the weak link to tons of power was the transaxle? Is there a problem with tons of torque and power above 500 with the ZF? What is the limit of a ZF if I am all wet (or broken as the case, pun intended, may be)? I thought that the case cannot handle the torque and it busts -- I would like to hear from someone who has first hand knowledge.....

Thanks,

Mark
JS Jason S. (Guest)
quote:
Originally posted by DeMopuar:
Maybe the motor can take it with a good tune and not too much core shift, but I thought the weak link to tons of power was the transaxle? Is there a problem with tons of torque and power above 500 with the ZF? What is the limit of a ZF if I am all wet (or broken as the case, pun intended, may be)? I thought that the case cannot handle the torque and it busts -- I would like to hear from someone who has first hand knowledge.....

Thanks,

Mark


Well, I can't say that I have been running the car at the drag strip on slicks, but so far it has put up with some pretty thorough beatings at 750'lbs of torque! I don't think putting power through it is as hard as some guys were on them road racing with constant accel/decel. I do have a healthy spare trans...so I'm willing to find out! Smiler
panteraturbopanteraturboMember
quote:
Originally posted by Jason S.:

Well, I can't say that I have been running the car at the drag strip on slicks, but so far it has put up with some pretty thorough beatings at 750'lbs of torque! I don't think putting power through it is as hard as some guys were on them road racing with constant accel/decel. I do have a healthy spare trans...so I'm willing to find out! Smiler


I'll second that! The problems come in top gear when all that torque cant break the tires loose. If im not mistaken someone had an input shaft break in an ORR after launching the car in the air and coming back down whilst revving too high.
Views: 523
Post

Membership Required

We're sorry. You must be signed in to continue. Sign In or Register
×
Are you sure you want to remove from your Block List?
×
Loading...
×
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .
×
Link copied to your clipboard.
×