I am planning on doing the Cadillac ATS "brembo" caliper conversion. I was wondering if I need to upgrade or swap out the master cylinder/brake booster on my 94 GT to a 96-98 cobra or 03-04 to support going from a 1 piston to a 4 piston caliper. Is there a difference between the cobra master cylinders/brake boosters vs non cobras, specifically for 94/95?
Cadillac ATS Caliper conversion
- Thread starter Pittsn95
- Start date
You can’t use any of the master cylinders from 96-04 because they’re all hydroboost.
You can update to the 94-95 cobra but it’s not a huge difference from the gt. You’d be best off getting an aftermarket mc that can handle a lot more volume.
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lutter94
Well-Known Member
We kinda need to know the square inches of caliper pot on the new calipers. The 94-95 Cobra Master Cylinders are actually smaller than the V6/GT ones because the cobra calipers have smaller caliper piston area than the GT. Advantage of the cobra brakes is the larger rotor and dual piston layout. GT still has a bigger single pot inside of itself.
ttocs
Post Whore
I thought everyone just slapped what ever caliper they wanted on the end of their lines and then swore that they were so much better?
lutter94
Well-Known Member
The ATS caliper sit closer to the center of the spindle and use 4 42mm pistons instead of 2 42mm and 2 40mm pistons on the CTS-V calipers.
Mustang Cobra Calipers
94-01 = 2x 38MM pistons
03-04 = 2x 40MM pistons
So basically you're double the piston area of a 03-04 cobra caliper, gonna need a bigger master thats for sure.....
Mustang Cobra Calipers
94-01 = 2x 38MM pistons
03-04 = 2x 40MM pistons
So basically you're double the piston area of a 03-04 cobra caliper, gonna need a bigger master thats for sure.....
Adfalenski
Member
Will the ATS master cylinder bolt in?
lutter94
Well-Known Member
Buy one and tell us? Or google it, ya google is a pretty good first step. Sometimes you gotta be the first person to try something, and sometimes forums and facebook don't have all the random answers you're looking for (but google might!).......
ttocs
Post Whore
I thought that people were already slapping these things in? Is this the first time someone thought about matching the MC and caliper?
