10-24-2009, 11:02 PM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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Not Ranked
18lbs is not enough air pressure, the sidewalls will flex too much. Cold should be near 25 in the front and 24 in the rear shooting for as close to 32 & 30 when things get real hot under track usage. Reccomended by Roger Kraus Racing.
18 lbs is too soft for responsive driving even on the street. IMO I base this on my having used Goodyear Blue Streak Sport Car Specials for several years. They are a very similar tire just a different tread.
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Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way 
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