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-   -   What brake upgrades do we have for base Boxster? (http://986forum.com/forums/showthread.php?t=14195)

insite 11-20-2007 08:26 AM

Quote:

Originally Posted by arenared
I looked up the rears, and the base is 292mm vs. 299mm with the S. So, there is some small difference. I was thinking it was more like 20mm like the front. My bad.

i just checked the manual, and you're right about the 292 vs. 299mm diameters. the thing is, i've compared S rotors to base rotors (back to back) and they look like they're identical in diameter. further, the calipers are offset from the hub exactly the same amount. see my post here:

http://986forum.com/forums/showthread.php?t=10816

the only difference in the rear calipers has to do with the guide pin offset. the guide pins can actually be removed and reset, so an S rear caliper can become a base rear caliper and vice versa.


Quote:

There are some very nice gains to be had with shifting the brake bias to the rear. The trick is finding pads with different mu friction but with similar temperature curves. Messing around with different pads to change the brake bias, there is a very noticeable difference in Gs.
agreed. the factory bias is heavily shifted forward. i used to run race pads only up front. i added high friction race pads to the rear (where i have the fat tires) and Gs went up significantly.

easyc 11-20-2007 06:29 PM

I can tell you that with my Pagid pads and hoosiers I can outbreak just about everything outside of cup car on the track. And this is in a 986S.

insite 11-21-2007 06:35 AM

Quote:

Originally Posted by easyc
I can tell you that with my Pagid pads and hoosiers I can outbreak just about everything outside of cup car on the track. And this is in a 986S.

agreed. the S brakes are really, really good.


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