just putting in my two cents from what I have experienced in my "showroom stock" endurance racing...
Brakes are one of the most....CRITICAL areas for lap times and safety.
There are MANY aftermarket pads that claim insane brake/clamping force numbers and ramping up temps etc. Stay away from all of these ESP if you are having any ABS issues such as "ice mode"
PAGID makes an excellant pad for this EXACT scenario.
I can tell you this....our RC comes with BOSCH racing adjustable ABS and we have still switched to a pad with reduced brake bite...and been able to reduce braking distance.
The other issue "high clamping" brakes pads do it kill your turn in.These pads ramp up so fast and can generate excessive heat...their release isnt as good.
Poor release meaning the driver has begun to reduce brake pedal pressure...but the pads are still dragging/clamping on the rotors..this doesnt let the front tires turn ....and it gives the driver a huge sensation of "understeer" at corner entry.
For those track guys /racers with a LARGE budget...and are serious about your track days ....source out Kurt Jung and inquire about the TEVIS motorsports ABS pump....its virtually plug and play...its also about $8500....but...going 140 at the end of the back striaght at Mid Ohio in your car with iffy brakes ?????? How much does crash damage cost?
Any upgrade to the rotor and caliper size only enhances the problem...doesnt solve it.
Not sure what the OEM setup on the 370Z is....but another option to look at....is a vacuum chamber reservoir. This will help keep a built up vacuum to assist the brakes.
Assisted brakes rely on vacuum to help feed the system....if you use it up...the brake pedal gets hard...the pistons are no longer compressing as much...and the car doesnt stop. The added chamber gives lets the system build up and have a larger supply to assist it. Escp helpful for cars with large cams....or forced induction cars.
Again...back to the pads and too much initial ramp up / bite....every single ABS pulse of the pedal ...uses and takes away vacuum. So a bunch of quick long hard hits...and your supply is gone...pedal goes stiff.
Systems like the TEVIS are programmed to "cycle" faster and have a higher sampling freq....the pedal will have very fast softer hits...and it uses the vacuum a lot more efficiently.
My first suggestion....Pagid pads.
Dwnshift
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