Rear wheels jumping under heavy braking

jchammond · 07-25-2020, 04:21 AM

Looking like plenty of toe on rear, so rule that out.
You listed rotors & brakes on rear; I know a badly warped rotor could cause this...but probably unlikely on your Z.
Unsure about your Diff & the 1.5way, as some lock under load & unlocks on decelerations?
Does this happen only while brakes are cold & then normal after warming up?
As you stated on track, all is good...but I’m sure that is consistent hard throttle & braking.
You may have developed some hot spots on rotors.
I’m sure others will chime in & help

Rusty · 07-25-2020, 10:05 AM

I would say it's your settings for DD on your coil-overs. They're too soft. Add a click or 2 to the rebound.

07-25-2020, 04:21 AM	#1 (permalink)
jchammond A True Z Fanatic Join Date: Nov 2014 Location: South Carolina Age: 58 Posts: 15,204 Drives: 13’ 370Z TS 7A/T Rep Power: 2684395	Looking like plenty of toe on rear, so rule that out. You listed rotors & brakes on rear; I know a badly warped rotor could cause this...but probably unlikely on your Z. Unsure about your Diff & the 1.5way, as some lock under load & unlocks on decelerations? Does this happen only while brakes are cold & then normal after warming up? As you stated on track, all is good...but I’m sure that is consistent hard throttle & braking. You may have developed some hot spots on rotors. I’m sure others will chime in & help Optimiser likes this. __________________ MazWorx built long block \| FI-TT-100 Stage 2.75 \| IPT built 7A/T http://www.the370z.com/members-370z-...s-musings.html

07-25-2020, 10:05 AM	#2 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 69 Posts: 35,418 Drives: 2011 Nismo GM 6M Rep Power: 2684438	I would say it's your settings for DD on your coil-overs. They're too soft. Add a click or 2 to the rebound. JARblue and Optimiser like this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

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