View Single Post
Old 01-18-2021, 04:13 AM   #1
Swift016
 
Swift016's Avatar
 
Drives: 2019 ZL1 1LE
Join Date: Dec 2019
Location: Newnan, Ga
Posts: 123
At track braking problems

Guys,
I need help/feedback...
I have a 2019 XLE A10. ...only mods are Goodrich stainless brake lines and Motul 600 brake fluid.. Michelin Ps4s at 34psi hot.

Yesterday at Barber I ran in Track with nannies on, and Sport Competitive...I had bad fishtailing under moderate braking from higher speed... the car was unstable and felt like way too much rear bias to a race car... the rears would chirp and feel like locking up... I never felt the anti-skid cycle , but was too busy to look at the dash..

Is the anti skid part of the ESC ? How does yaw control activate and when ? I assume that is with differential braking through ESC...
The car never felt like it was braking at a normal rate, and I had to use brake markers much earlier than usual..

I know the Mich are not track tires, but I don’t believe that is the issue... my mech says my stock brake pads were good, but have not rechecked them today, I’ll also check rotors for any issues.. track camber and toe are spot on.

Anyone else have an experience like this ? I can’t risk another track day until I find the cause... bummer !

Thanks,
Bill
Newnan, Ga
Swift016 is offline   Reply With Quote