Thread: Which is better for my Cobra: Tremec .62 or .82 OD?
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Old 10-31-2009, 08:42 AM
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DonC DonC is offline
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Join Date: Jun 2003
Location: West Linn, OR
Cobra Make, Engine: ERA #684, 428 FE, TKO600
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I'd highly recommend the 0.82 fifth. I'm running a slightly different set up (3.07 rear with 17" wheels) and find myself cruising at 2300-2400 RPM at 70. My cam comes in around 2000 so the drive train seems pretty happy there. The 2.87 first gear in the 600(R) is very usable compared to the much lower first gear ratio on the older TKO models. Even with the higher 1st ratio I can still break the rear end loose at will in 1st and 2nd.
I do mainly street driving with a couple of track days per year and find the 600 to be very comfortable across the board.
DonC
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