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Old 05-06-2016, 11:02 AM
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RodKnock RodKnock is offline
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Cobra Make, Engine: KMP 539, a Ton of Aluminum
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Quote:
Originally Posted by cycleguy55 View Post
No problems getting mine rolling, even with a 2.75:1 FDR. OTOH, I have a mild 460 CID and a 3.28:1 first gear (Richmond Street 5-Speed). Obviously this would be a much different situation if the cam had significantly more duration and less low-end grunt.
You have a large advantage with that 1st gear in terms of torque multiplication:

You
3.28x2.75=9.02

AC Ventura
2.78x2.88=8.00

Generally, you would want to be somewhere at least in the 9's. 8 is just not enough for good starts, without wearing out your clutch.
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