[henny496]

Hello
I am building a 63 vette as a street/strip car. It will be mostly street driven, but I do intend on partcipating in some pump gas drag events
I have 4 wheel discs on the car and I had purchased 4 brand new VBP 4 piston calipers for this car.($$$)......then I found some problems
Since my engine is centered in the chassis now, I could not use the original master cylinder in its location. I did buy a brand new Aeromotive master cylinder and I am making floor mounted pedals
The 4 piston calipers are large and heavy. ( too heavy) I have 15 x 4's on the front with a 27.5 in tall tire. I have 15 x 15 in rims on the back with a 19.5 x 33 in tire
The front rims and tires hit the 4 piston calipers. Can I go to a 2 piston caliper on the front and stay 4 piston on the back?? If so, can I use a proportioning valve to offset the calipers, and what should I set the proportioning valve at for a base guideline??
I had even thought of unbolting the calipers(two halfs) and bolting a aluminum plate on the back to make them two piston
I am a tool and die maker and can fab up brkts for the calipers to float
The motors are further back on the vette for weight distribution and I am using a harder spring on the front for street driving, I can change the coil overs for the strip. I also know about using residual valves at the master , since it is lower than the calipers
Newer Vettes have a 2 piston design as well as a lot of other cars, such as my Lumina......could I just use them
I am sorry for such a long winded question, but I want to get the braking system correct, and I hope I am not getting off on the wrong track.
I don't want to buy any more parts that are not correct and fab up something that won't work
I am also doing many other things on the car, ( too much going on)so I don't want to overlook something here.
I would apreciate any help on this matter
thanks
Tom

[Deuce]

Originally Posted by henny496

The front rims and tires hit the 4 piston calipers. Can I go to a 2 piston caliper on the front ?

Tom

Most brake folks say that a single piston caliper is better.......because it is less prone to leak....

.

[henny496]

Hello
I recieived a reply to this post, but it does not look like it is showing up
I centerd the engine and the rear end is a narrowed Dana. The car has been back halfed with custom 2x3 mandrel bent frame rails
I have R@P steering, so I am not using any of the original mechanism
I have thought of unbolting the two halves of the calipers and mounting a flat aluminum plate on the back, so in essense the calipers are now only two piston. The brkts will be modified to allow the calipers to float( I am a tool and die maker so I can fab stuff up)
I already purchased VBP calipers which where not cheap. I think even a factory two piston will have clearance isues with the rim
I had not really heard much back on this, so I kinda' already started the modifications.........hopefully it works
take care
Tom

[Deuce]

Originally Posted by henny496

Hello
I recieived a reply to this post, but it does not look like it is showing up
Tom

You got a reply but I deleted it...It was SPAM.....

[POWERBRAKEBOB]

I Posted A Long Winded Answer, But It Was Deleted.

another edit....by the Moderator....because of
SPAM........

BoB ...you have been warned.........

This is your last warning.....