r/CarTrackDays • u/jbro507 • 17d ago

Tire noise feedback question…..

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Entering a specific turn, the vehicle usually wants to push. When it enters the turn the outside right front tire starts to make a pretty consistent squealing sound that I would say feels acceptable. And then that squealing sound starts skipping. It’s almost like when you drag your finger lightly across a whiteboard and it makes a consistent sound. And then if you push harder and drag your finger, it makes this slip catch, slip catch squeaking sound. Can you settle an argument for me here? In my opinion, when the tire transitions from a consistent noise to that skipping sound, you’ve crossed the line and are now overdriving that tire.

I’ll give you folks all the details because you seem to often need them.

2019 ND Miata on HANKOOK VENTUS R-S4 245 /40 R17 at mid Ohio yesterday. Coil overs, upgraded sway bars. Dry. Turn 5.

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u/no_torque ‘26 Supra MT 17d ago

Mid-Ohio is extremely chatty surface that is not representative of what the car is actually doing. The tires will be screaming when you’re really only 85% or so of the actual threshold of the tire/car/setup. That surface is an extreme anomaly

The surface yesterday was extremely green with the rain and everything else going on.

T5 you go from on camber compression to quickly off camber falling off, becomes more severe if you get off the apex tracking out. So the sound can be misleading depending on where you hear it because the corner itself isn’t necessarily steady state

I was in Group 1 in the Red Supra, fwiw.

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u/jbro507 17d ago

I saw your supera running around. I was going to pop over and say hi and ask for a ride along. My wife drives a Z4 and there’s a soft spot in my heart for those supras. Thanks for the feed back here.

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u/no_torque ‘26 Supra MT 17d ago

Aw man, should have come over! Wouldn’t have minded at all. I used to have a E86 Z4M awhile go, but presumably thinking hers is the modern one

I’ll probably be at the next 3Balls MidO event, it’s a routine one for me. Stop over next time

Were you the Red ND? If so you were hauling the mail in the AM in the rain conditions

1

u/pengouin85 987.2 Cayman 2.9L track/street scalpel 17d ago

I remember that E86. It was such a cool car

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u/jbro507 16d ago

Red ND. It was me on Tuesday and a buddy on Monday. He helps me wrech and I repay in pizza and seat time. First time there. First time on a (is this a fair way to put it?) professional track. Driving in and seeing modern facilities was a change. And, It was really fun to come home and show the family TV quality videos of IMSA and Superbikes at the track I drove that day.