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Old 07-31-2009, 11:34 PM
Bob Broberg SPF667 460BB's Avatar
Bob Broberg SPF667 460BB Bob Broberg SPF667 460BB is offline
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Join Date: Aug 2000
Location: Glendale, AZ
Cobra Make, Engine: SPF 468ci 550HP + 150HP NX Matching Shelby GT500 650HP
Posts: 4,235
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First, check your tire pressure. Should be 20 to 24 lbs. With your hp ANY street tire will be like that. Next, 90 degrees C (194 F) is still normal. It took a long time to get mine to run at 80C (176F). On track days mine would get to 100 C but would lower if I didn't run high rpm all the time. You should have a 19 lb or higher radiator cap if you go up to 105. I know an SPF with a 514 that has run at 90 degrees for 50K miles just fine.

AZ Bob
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