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Autocross
Street tire autocross guy now on race tire question
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<blockquote data-quote="David Hester" data-source="post: 6271158" data-attributes="member: 6794"><p>As important as what you start out with is what you end up with.</p><p>If 35-40 is where the engineers designed the tire to work, you want to be in that range most of your run. If you find you are 45-48 at the end of a run, lower starting psi a couple of lbs before next run. </p><p>If you start at 34 and end up with 40 or so at the end, you are good.</p><p>If you start at 38 and end up with 45, you are still good.</p><p>If you start with 32 and never get to 35-40, you are missing out on performance you paid for.</p><p>I start with 35-36 front 34 rear roadracing and after 35-45 min race, I'm around 40-42 hot. That works for me.</p><p>Remember for autocross, you want to start near where you want optimal to be, as you don't have but 30-60 seconds to get to the "good" area.</p></blockquote><p></p>
[QUOTE="David Hester, post: 6271158, member: 6794"] As important as what you start out with is what you end up with. If 35-40 is where the engineers designed the tire to work, you want to be in that range most of your run. If you find you are 45-48 at the end of a run, lower starting psi a couple of lbs before next run. If you start at 34 and end up with 40 or so at the end, you are good. If you start at 38 and end up with 45, you are still good. If you start with 32 and never get to 35-40, you are missing out on performance you paid for. I start with 35-36 front 34 rear roadracing and after 35-45 min race, I'm around 40-42 hot. That works for me. Remember for autocross, you want to start near where you want optimal to be, as you don't have but 30-60 seconds to get to the "good" area. [/QUOTE]
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Street tire autocross guy now on race tire question
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