S4 Brake Upgrade and Proportioning Valve?

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05-12-2004, 01:23 PM

#31

Sam Lin

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The letters 5 and 33 will be stamped on it.

Sam

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05-12-2004, 01:48 PM

#32

Renn 951

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Quote:

Originally posted by Danno
BTW - the only thing you need to fit S4 brakes onto '87+ cars are the rotors, calipers and caliper-adaptor blocks.

Yes, the end result of my project was the stock proportioning valve works fine for now with the S4 front upgrade, stock turbo brakes in the back, and PFC97 pads all around. I may try going with the 5/33 valve at a future date.

The UNEXPECTED problem I found after doing all this was my 16" PD wheels did NOT fit in the front over the new brakes!

There is an inward-facing flange piece on one side of each PD spoke that hits the outside of the S4 caliper. So, I ordered a couple 16" "pie plate" wheels that should fit. If I didn't already have an inventory of 16" RA-1 tires I might have gone to 17" wheels, but I didn't want to make that investment just yet.

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05-12-2004, 04:50 PM

#33

Mike Buck

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Quote:

Originally posted by FSAEracer03
[B]

Hey Mike... I saw your car at the shop yesterday, and I just thought I'd say "hi!" I'm sure I'll get to meet you in person soon enough.

yeah, that was mine. Were they still yelling at it, or was it fixed by then?