Looking for the part number, and a cross ref of another car ford might of used it on. Thanks
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quote:My old stock booster was not holding vacuum and my resevoir was leaking. Thats why I decided to replace it. I was leaving the p valve in place just for simplicity. I'm not very experienced with brakes so I appreciate all your input.
quote:Scott, can you tell what is going on with the master in the picture. Why one size connection is larger and tell what size/flare should connect there?
quote:There is also a lot of Brake Masters that looks very similar. I don't know if anyone has ever experimented with a suitable substitute from i.e. Fiat or Alfa. For sure they will be very interesting on the price ;-)
quote:Originally posted by goodroc:
The ones I have seen/heard are noisy. Maybe there are some newer ones that are more silent. A diesel engine does not provide any vacuum either so they solve that problem various ways. Some has a mechanical Pump run on a Cam and some off them uses an Alternator that has a build on Vacuum pump at the shaft opposite the pulley (and thats what I think is interesting). And some also have an electrical pump. There must be some US diesel cars which had an Alternator with Pump that could easy be made to fit the Pantera? Other individual Pumps are so compact and with a pulley that I would almost think they could be fitted (depending on your setup) on your v-belt from the water pump and at the same time act as a tensioner pulley. (just a thought)
Of course the simplest way is to hook up an electrical Pump ;-)
I worked with an Opel once that had this one:
http://www.ebay.de/itm/Lichtma...&hash=item20e07cd775
quote:You would have to relocate the alternator. The alternator in the Pantera is right up against the cylinder head and there is no room for the vacuum pump there.
If you are going to start changing master brake cylinders irregardless of whether or not they bolt up (which they probably will) you must know the bore diameter of what you have and what you are putting in.
Like Scott said, you are changing the feel of the brake pedal.
That is a balance between output pressure to the brakes and leg effort.
I doubt that you will be happy by going larger than 1".
Most cars are going to like somewhere between 3/4" bore and 1".
If you go over 1" you increase the effort but not necessarily the pressure.
Race cars do that to reduce the tendency of locking up the brakes with too sensitive a brake pedal.
In the Pantera be careful about giving the rear brakes too much bite. If you increase the braking in the rear you need to increase the front braking proportionally or else the rear will be locking up too early and the rear will come around on you.
There is a reason Detomaso has those small calipers engineered into the car, and that is the reason why.
Mid engine cars need to be balanced in a way where anyone can drive them safely. It isn't anything to play around with unless you have a lot of knowledge and experience on brake systems.
Your car with those beautiful big brakes can suddenly be a dangerous unsafe monster.
Best to go with a system already engineered and tested under extreme conditions to work well. Scott has already done a lot of work on making kits available for the Pantera.
Bigger rear pads with more braking torque are going to need an adjustable brake proportioning valve to dial out a percentage of the torque you just put in. You are also going to need about a days work on a private tarmac somewhere to get the adjustment right. You can not do that on a public street safely and if you try you likely will get arrested for unsafe driving and endangering the public.
quote:Originally posted by goodroc:quote:You would have to relocate the alternator. The alternator in the Pantera is right up against the cylinder head and there is no room for the vacuum pump there.
If you are going to start changing master brake cylinders irregardless of whether or not they bolt up (which they probably will) you must know the bore diameter of what you have and what you are putting in.
Like Scott said, you are changing the feel of the brake pedal.
That is a balance between output pressure to the brakes and leg effort.
I doubt that you will be happy by going larger than 1".
Most cars are going to like somewhere between 3/4" bore and 1".
If you go over 1" you increase the effort but not necessarily the pressure.
Race cars do that to reduce the tendency of locking up the brakes with too sensitive a brake pedal.
In the Pantera be careful about giving the rear brakes too much bite. If you increase the braking in the rear you need to increase the front braking proportionally or else the rear will be locking up too early and the rear will come around on you.
There is a reason Detomaso has those small calipers engineered into the car, and that is the reason why.
Mid engine cars need to be balanced in a way where anyone can drive them safely. It isn't anything to play around with unless you have a lot of knowledge and experience on brake systems.
Your car with those beautiful big brakes can suddenly be a dangerous unsafe monster.
Best to go with a system already engineered and tested under extreme conditions to work well. Scott has already done a lot of work on making kits available for the Pantera.
Bigger rear pads with more braking torque are going to need an adjustable brake proportioning valve to dial out a percentage of the torque you just put in. You are also going to need about a days work on a private tarmac somewhere to get the adjustment right. You can not do that on a public street safely and if you try you likely will get arrested for unsafe driving and endangering the public.
About the Vacuumpump on Alternator, I didn't actually say it was an easy option, just an option. We are all spending tons of hours of modifications with sometime minor benefits. Just because we like modifications and it makes us proud to achieve something cool (nerdy by someone) For example I did a lot of work and spend a (relatively) lot of $$$$$$ just to get the passenger backrest 1,5" further back. Does it make sense? don't know..... perhaps for my wife. But it is a cool mod!
About the Master cylinder, I couldn't agree more with what you say. Of course the bore must match or else other precautions should be taken so that the Brakes remains balanced. On the photo of the Fiat Master you will see it is 25,4mm = 1"
And btw here were I live NO person will ever get arrested for testing their Brakes on a remote piece of road (public) ;-) Not even by the meanest rookie cop.
PanteraDoug; I was just trying to help with options, whatever people do is their entire own responsibility, agree?
quote:Originally posted by goodroc:
I agree with you and I can't stand that Pack mentality exercised by any group. Wether it is the Police or the guys with long black Boots from the south who were mingling with the regular soldiers that invaded and occupied my country from April 9th 1940. Some of them was really nasty ;-(
Anyway to get back to the subject. If installing an electrical vacuum pump some people suggest that you install a vacuum reservoir (tank). Otherwise the pump will start/stop too often. I would go to the local junkyard and pick up an empty small fire extinguisher bottle (have seen them there) and use that or perhaps just buy one build for the purpose. (not the small ones for HVAC or Power locks) And of course a vacuum sensor switch to sense the system vacuum and control the Pump. You can still take advantage of the 7" of vacuum at your manifold as initial vacuum if you remember to add an additional check valve that shuts as the system vacuum goes below 7" generated by the vacuum pump.
quote:Originally posted by ZR1 Pantera:
A few Pantera owners have installed this pump...
http://www.saccrestorations.ne...lectric-vacuum-pump/
quote:Originally posted by ItalFord:
PanteraDoug, Hope you don't mind if I chime in some more on the pump. It is loud. I have mine mounted up front next to the battery. If I turn on the key I can clearly hear it. If the engine is running even at idle I can barely hear it. While driving the car I don't hear it. I did mount it on rubber isolators to help reduce vibration. Hope this describes it better for you.
quote:Is it louder than an electric fuel pump?
quote:That thing is ridiculously loud. It does sound like the portable compressor I use for my nail guns.
There has got to be one that is quieter?
It looks like the unit that is sold by Comp Cams.
Thanks for posting that. Looks like a Dartmouth Engineering undergraduate student?
quote:Originally posted by PanteraDoug:
That thing is ridiculously loud. It does sound like the portable compressor I use for my nail guns.
There has got to be one that is quieter?
It looks like the unit that is sold by Comp Cams.
Thanks for posting that. Looks like a Dartmouth Engineering undergraduate student?![]()