Pad Knockback at the Track/Auto-X

iLuveKetchup

Anyone experience pad knockback at the track or auto-x?

import111

Normal braking at the track for me.

vipor

no fade or anything?

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2009 NISMO # 0193 | QAB | Albums! | 05.04.10 (Dynojet) 291.94hp/248.28tq
Oil Cooler (DIY) | Custom Headlights | GTSPEC Braces | F.I. Long Tube Headers

Island_370

If you notice this......before you run out and buy a $$$$ brake kit.....

Most of the knockback is a result of hub/bearing flex not the caliper. As the car loads and the parts flex, the angle of the rotor in the caliper deflects from 0 degrees (vertical) and pushes on the pad causing the pistons to retract. When the car unloads and the rotor returns to 0, there is now extra clearance. The seal design on the caliper pistons can help this, but piston springs are really the only fix----aside from rebuilding the suspension/hub with unobtainium.

Piston springs are for track only cars. the pads will overheat on the street and wear REALLY fast.

I have not yet had the Z on the track, but my Audi did it with aftermarket calipers (Alcon 6 pots--very good calipers). I was able to adapt by learning to use my left foot on brake. I would gently---GENTLY--tap the breaks on a straight before a big braking zone. It brought the pistons back and put a bit heat into the pads. Gave great initial bite. It is a learned skill to give just enough pressure to set the pads, but not enough to add too much drag. A series of light taps (~5-8) worked best for me.

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Autobahn Country Club (North and South Tracks), Blackhawk Farms, Grattan, Gingerman, Mid-Ohio, Putnam Park, Road America, Sears Point, Thunderhill, VIR and "The Ring"

iLuveKetchup

Im aware of this & I dont think I mentioned anything about a BBK . I have constant knockback on my 04 STi even w/ anti-knockback springs. Ive learn to deal w/ it through LFB. I was just wondering if it occurred on the 370z. I'm just doing my due diligence before a possible purchase of a 370z.