mdaniel

Something screwy happened in my last session at Gingerman on Monday.

The car started acting weird in turns. If felt like the tires were misinflated (I did verify that wasn't the case).

There was a noticeable hesitation in the turns where it felt like the rear of the car was catching up with the front.

I see the passenger front rotor is cracked, but not enough to explain what I encountered at the track.

I'm unable to recreate the problem on the street (can't really go fast in turns..)..

Anyone have any ideas on what I should do/check before my next track day?

argonaut

How full were your fuel tanks? My car will hesitate in right hand corners when the tank is about 1/3 full.

mdaniel

2/3 full, but good thought though.

mdaniel

Reviewing my notes & trying to piece together what happened I think I -might- know what happened.
Two of the four tires were not registering tire pressure on the DIC.
The car wouldn't go into Competitive Handling mode, no matter how many times I hit the button or how long I held it down.

Would the weird under-steer issue I described be consistent with traction control kicking in? Wondering if that's what caused my passenger front rotor to crack as well.

FWIW, I just took the car around the block and all four tires show up with 39 psi and I -am- able to go into Comp Mode.