03-02-2009, 10:12 AM
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CC Member
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Join Date: Mar 2000
Location: Des Moines,
IA
Cobra Make, Engine: Sold my beloved Shelby CSX 4068, Gessford 427 Ford
Posts: 756
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Not Ranked
It's not the material, it's the weight
The material used (aluminum or steel) is less important than the actual weight of the flywheel. There are lightweight steel flywheels out there that approach the weight of aluminum.
For a street car, the rule of thumb I've been told is that the flywheel weight should be approximately 1% of the car's weight. A 4000lb car should have a 40-pound flywheel. A 2500lb car needs a 25 lb flywheel, etc.
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CSX4068, '69 Bronco, '70 BOSS 302, '87 Mustang GT, '08 Roush Trak Pak
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