383

I was bedding my new PFC99 fronts with XP10 rears and I seem to be in the ABS quite early even for street bedding. Should I switch the rears before my first track day? I currently have HP+ on all 4 corners for auto-x and the only tires I own are R-888's right now.
Will the HP+'s work with 525whp and R-888's?
My thought is no, so what is a good choice for the rear PFC99's?
Thanks

waddisme

I am currently using the XP12/10 setup on stock calipers. IIRC when I tried the 99s, they seem to have more initial bite than the XP12s, but I don't recall having issues with balance with the XP10s on the rear with them. I ended up going back to XP12s for the fronts as the 99s couldn't make a 30 min session with fading. It is probably different with AX. You should know pretty quickly if the HP+s will work. Good luck with it.

383

I will be using them at lime rock park. the HP+'s are for auto-x. should I look for other alternatives to balance for the track?
Thanks
Chris

383

I just reread your post. Didn't get it the first time. Thanks for the input

RX-Ben

You may be getting into ABS b/c the road you are on is crappy (dirty or bumpy etc).
I've run 99s up front and a variety of rear pads, similar or more aggressive than what you mention and I have not had any issues.

383

The car seems to nose dive (with the blower up front and all) maybe thats part of it too. Would lowering bolts in the rear help with rear braking? Im wondering if leveling the car out could be a help.
Ill test this combo out fully at this sundays auto-x