06-16-2009, 05:30 AM
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CC Member
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Join Date: Nov 1999
Location: White Plains,,
NY
Cobra Make, Engine: ERA140, ERA 267, ERA GT2038, ERA FIA 2045, ERAGT2077 ERA2893000EXP
Posts: 1,117
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Not Ranked
Just interested; Why the switch?
The Richmond Gear 5th gear is 1:1, whereas the Tremec 600 5th is .64 (or .82) Depending on your rear axle ratio, the change will result very different characteristics. Wouldn't it be cheaper to swap out the rear?
I've used both trans in my ERAs and frankly, I thought the Richmond trans with a 3.08 rear was ideal. The Tremec needs at least a 3:54 or 3.77 to work. I have a Tremec with a .82 in my FIA with a 3.31 rear and I rarely use 5th.
Jim
PS: You will also need a bellhousing/trans spacer if you are putting a Tremec behind an FE with Lakewood Bellhousing
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