Ok, I'm seeing huge differences in tire pressures guys use to autocross. Just like me I think we use what the "locals" recommend and never sway far from it. So for those of you who compete regularly and seriously, please post the tire and size and cold and hot tire pressures you use. Track guys and tuner dudes post on another thread.... I started the season with 225/45x16 Direzza ZIIs. 38/50 cold. bleed off to 40F when hot and leave R alone (+/-53). New Falken 615ks 215/45x16 last weekend, same 38/50 cold. 40/50 hot. This weekend I'm in Lincoln for a regional where we might 6+ runs so I am going to start with absurdly low pressures and go from there. I'll report.