Supercharged111

I ask this because I was pretty gentle on the pedal last season as the car was brand new to me. I did 5 events (3 of which were 2 dayers) and the rears are pretty much done. The fronts got the corners rounded, but still have a good bit of meat. Most of the time, I left all the nannies on because I figured if they were kicking in, I was doing something wrong. There was 1 track where I had to turn it off because on an uphill turn the car would unload a little at the crest and TC would kill my run up it once I got faster. I ran the el cheapo tires that the car came with, 300 treadwear, and upgraded only the pads. Most of the time, the car would exhibit understeer the way I drove, so it surprised me when I saw the rears disappearing faster than the front. Can anyone elaborate on why this is? Or was it my 2 weekends at that one track that did it? 2.5 of the 4 days there were spent in comp mode, the first 1.5 were more spent learning the car/track. This is the track where I got whatever confidence I have.

froggy47

My backs wear faster, I suspect, due to some toe in I run in the back.

AU N EGL

Normal. Your rear tires are sliding slightly for better traction.

Supercharged111

I ASSume the alignment is stock like the rest of the car, but it's worth checking and only takes 5 minutes.

AU can you explain how my back is sliding if I'm usually understeering or just neutral? I know the back was loaded plenty as I'd try to unwind the wheel just enough to keep it from dancing, but not actually drifting per say.

RogerT

Your tire wear can be caused by incorrect tire air pressure, or wheel alignment depending on the wear pattern. Or it may be normal.

Roger T

Bills Z06

Perfectly normal IMHO. Just remember that the rears work hard under acceleration even if you don't think you are spinning them out of the corners. The alignment issue is also something to check as stated above.

VetteDrmr

Active Handling will cause more wear on the rear tires, but as Bill pointed out, even if the tires aren't spinning you're still working them under acceleration. Also the rears are working under acceleration, the fronts are just along for the ride; all four work under braking (but the fronts take the brunt of that), and all four work under cornering.

You may be spinning them a bit on corner exit which will acclererate rear tire wear, but as others have pointed out things seem normal.

HTH, and have a good one,
Mike

Larry Myers

Perhaps it's because the rear tires and the gas pedal are connected.

UstaB-GS549

Check toe-in. Too much will wear tires at an accelerated rate.

I had similar problem with the fronts wearing twice as fast as the rears. Turned out to be caused by 1/2" toe in.