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Old 10-09-2003, 01:02 PM
Hal Copple Hal Copple is offline
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Join Date: Jun 2000
Location: Rock Hill, SC
Cobra Make, Engine: Superformance, 396 CI
Posts: 1,268
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Mike Stenhouse, the owner/operator of the SPF Second Strike literature and web site, is quite a gearing guy. If you want to plug in some of your choices, you can use his gearing calculator on his Second Strike site,

try:

http://www.secondstrike.com/Technical/GearCalc.asp

But there is some truth to the above comments about displacement and camming, i think if i were to have to start from scratch, i would want about 2K rpm at about 60 mph (ha, which i have now), then select a cam that will give reasonable drivability at about that rpm as the lowest reasonable rpm, and try it.

A bigger, more torquier motor can do with a "longer" gearing.

But you can play a lot with Mike's calculator. It already has the different transmissions in it.

Personally, i would give away first gear, in order to run a reasonable cruise rpm. So running a TKO II, with the .80 fifth would be nice, to me, with a 3.23 rear. brings the cruise back down, and streatches out the "splits" in the shifting.

Mike's SPF has the 3.08, TKO II, with about 530 hp or so, very long legged gears, but needs just a titch of clutch slip from a dead start.
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Hal Copple
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