OVER 9000!

I am about to purchase my first set of competitive tires (255/40r17 RS3's) and I am debating whether or not the heat cycling will be worth the extra $60 or whether they will wear that much faster without proper heat cycling. What are your opinions on this? I do high speed autocross once or twice a month and hpde's as well.

MMisencik157

Complete waste of money to pay to heat cycle an R-S3 IMO. Just throw them on, scrub them in and go. If you daily drive your car they will see at least a few smaller heat cycles before it sees any track time.

TommySalami

Yeah, what he said

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sweetdill

I don't think you'd get any additional trackdays in their sticky window. Just make sure you're getting good temp readings at the track across the tread width.

OVER 9000!

kk thanks guys. I'll just skip on the heat cycling then. This is a little off topic, but what's the optimal hot tire pressure to aim for at the track?

OVER 9000!

What would cause uneven temps across the tread? Camber?

daktruckie99

I was considering having this done to my next set of RS-3s but had to do more research before I decided. I do HPDE only and wear out the tires from heat cycling before I wear out their tread. My case is probably unique though, I live 35 miles from the track and only drive it to and from. I no longer do any street drivings other than trips to the gas station or bedding in brake pads.

-Mike

MMisencik157

RS3s have a pretty soft sidewall and will need upwards of -3 degrees of camber depending on your suspension setup and driving ability. I maxed my front adjusters out at -1.8 and rears are -2.8. Tires have always been set to ~ 40 psi HOT to try to resist excess wear on the outer shoulders. Even after rotating them front to rear between every track day (4 total = 8 hours of track time) they look like this:
[attachment=32488:IMG_1038.jpg]

Just got them flipped and I expect another 4 or 5 days out of them.

Hot pressures depend largely on your setup. Many of the fast guys seem to like 36-38 hot but they're also running -3 or more degrees of camber. For my setup I found 40 psi to feel faster but this wasn't backed up by a stopwatch.