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Open Track Racing
track alignment for '01 Cobra?
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<blockquote data-quote="13COBRA" data-source="post: 16804632" data-attributes="member: 138337"><p>If it were me, when I'm learning a new tire I'll start them cold about 4psi lower than where I think I want to end up hot, make each tire the same. I'll run a session and have someone meet me in the hot pits with a tire gauge and tire pyrometer (or temp gauge). Then I'll have them note the pressures all the way around, and the temperature based on inside/middle/outside on each tire. The goal is to have the tires all have the same temperature across the board.</p><p></p><p>You'll have to adjust pressures and alignment based off of the numbers you pull. Obviously its more difficult to adjust the alignment at the track, so I would start with adjust pressures. The second run out you should adjust the tire pressures (front/back, or front/back/left/right) to get closer to the hot number you want to be at all the way around. The goal is for the end of the second session to be within 1psi or so all the way around. Now, you have a pretty solid baseline for the tire pressure.</p><p></p><p>Next would be to keep tracking the temperature of the tires, as with more/less pressure they'll change some. You'll need this noted down in order to make alignment changes. If the center is hotter than the rest, too much psi. If both inner and outer are hotter than the middle, not enough psi. If the outer is hotter than the inside you need more negative camber, and vice versa if the inner is hotter than the outer.</p><p></p><p></p><p>Just my $0.02.</p></blockquote><p></p>
[QUOTE="13COBRA, post: 16804632, member: 138337"] If it were me, when I'm learning a new tire I'll start them cold about 4psi lower than where I think I want to end up hot, make each tire the same. I'll run a session and have someone meet me in the hot pits with a tire gauge and tire pyrometer (or temp gauge). Then I'll have them note the pressures all the way around, and the temperature based on inside/middle/outside on each tire. The goal is to have the tires all have the same temperature across the board. You'll have to adjust pressures and alignment based off of the numbers you pull. Obviously its more difficult to adjust the alignment at the track, so I would start with adjust pressures. The second run out you should adjust the tire pressures (front/back, or front/back/left/right) to get closer to the hot number you want to be at all the way around. The goal is for the end of the second session to be within 1psi or so all the way around. Now, you have a pretty solid baseline for the tire pressure. Next would be to keep tracking the temperature of the tires, as with more/less pressure they'll change some. You'll need this noted down in order to make alignment changes. If the center is hotter than the rest, too much psi. If both inner and outer are hotter than the middle, not enough psi. If the outer is hotter than the inside you need more negative camber, and vice versa if the inner is hotter than the outer. Just my $0.02. [/QUOTE]
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track alignment for '01 Cobra?
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