Tire wear help

CG13

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I was using Michelin PS4S tires with -1.5 camber on the front and destroyed a driver front in about 100 track miles. I was running max around 37-38 PSI and still delaminated/chunked the outside shoulder.

I recently switched to a set of Trofeo R tires. These call for 32 PSI hot. I now have camber set at -2.75 on the front each side with 0 toe after installing EVS ball joints.

I ran 1 track day, 110 miles with no issue and wear looking good. Total street mileage about 350 miles, basically to and from track and a few other short trips around town.

I just started a track day, ambient temp 63 F. I ran 2 warm up laps, 7 hot laps, and a cooldown lap. Everything felt fine. Front PSI measured 35 PSI on the passenger side, 36 on PSI on the driver side. I planned to air down before next session.

Driver front looks great. Passenger front is destroyed on the INSIDE shoulder. Every other tire looks fine. See photo.

Question- what should I do here? I can’t rely on the car if I’m losing tires this quickly. Maybe I hit something that damaged the tire this time, but I’m not really sure. Does anyone have any advice?

Added driver side to show the difference in wear.

265/30R19 Trofeo R tires (OEM size) on Honda forged wheels.

Track is I29 speedway. Lap time today was 1’47.52.

11th Gen Honda Civic Tire wear help IMG_1271


11th Gen Honda Civic Tire wear help IMG_1275


11th Gen Honda Civic Tire wear help IMG_1276
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AZCWTypeR

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I once added significant negative camber to a CRX Si. The front tire inside edges wore out fast due to wheel spin exiting corners, along with straight line acceleration wheel spin.
 
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CG13

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I once added significant negative camber to a CRX Si. The front tire inside edges wore out fast due to wheel spin exiting corners, along with straight line acceleration wheel spin.
I could see that being an issue if driving a lot of street miles riding on the inside of the tire. In my case I’ve had very little mileage and -2.75 isn’t extreme for track driving.

I really need a setup that doesn’t destroy the tires and now I’m not sure what that is.
 

JesseN

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Looks like a toe alignment issue to me. And if you're getting wheelspin out of corners...there you go. A larger rear bar can help put power down on corner exit.
 

MoodySara

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Looks like a toe alignment issue to me. And if you're getting wheelspin out of corners...there you go.
My vote is for a toe problem, too.
Did you re-check the toe after seeing this latest problem?
Zero all around is a good place to start.
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