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Originally Posted by slcook54
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Originally Posted by DRLane
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Originally Posted by DrFerry
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Originally Posted by SYT_Shadow
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Originally Posted by XCUSE_M3
Anyone with the AP kit ever change to a PFC or stop tech rotor or just any other rotor. I always have a issue with the rear of the rotor cracking inside to the bearing and this is with the J-hooks. Looking for something that will last longer. Race teams that run ap's seem to always have a different rotor other then the j-hooks just not sure what the run.
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the Turner cars run Girodisc rotors on the APs |
Sounds like a worthy alternative serious track combo (AP Racing BBK + Girodisc) as the PFC BBK kits are becoming scarcer and scarcer. I admit PFC BBK is the King of E9X BBK but a second best option is worth knowing about. Thanks for the information from someone who really puts the products to the test on track. Hope the stroker is holdin' up.. |
AP Racing is as significant of a player in professional motorsports as anyone else. If you want a 36mm compatible disk for the Radicals just order them. It will be as effective as anything by PFC, Alcon, or giro. You can get different J hook configs, curved slots, plain face, etc
Viable option:
https://apracing.com/cdn/drawings/cp5772-6076~7cd.pdf |
Devin, does the 2mm make that big of a difference? I run 9660 which is 372x34 (so is 9668). If you go larger on the rotor width, I'm assuming you have to run a pad with less width? Am I understanding that right?
My pads are only 18mm. I wanted the 9668 but it wouldn't fit my street wheels. May have to sort that out. |
The 9668 which runs a 25mm pad is compatible with 36mm rotor rings. I think the extra 1mm on each side of the rotor face is considerable to the heat sink and durability and is the driving factor in the alternative kits. Sure the Alcon is also 380mm, but again if that's whT you want it's available.
I'm guessing, the emphasis on the 34mm option from Essex (also at 372 vs 375 diameter) is weight reduction. The larger and thicker disk adds unsprung weight.