Thread: Gear ratios
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Old 11-26-2013, 03:42 PM
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sambo sambo is offline
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Join Date: Jan 2007
Location: Melbourne, VIC
Cobra Make, Engine: Harrison, 6.0L Chev
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Default Gear ratios

I'm doing a bit of a thought exercise here, interested in your opinions.

Working through the gears in my Cobra, the L98/T56 combo with 3.692 final ratio is kind of "busy". Thinking ahead to a proper tune and maybe a cam, I'm going to be swapping gears even faster. I've had a look at alternate gearbox ratios and there's a version of the T56/TR6060 with taller gearing (also comes in a Magnum version with many improvements - shift quality being a big one).

I found a calculator and entered all the specs for my current setup on the left (below) and the alternate gearing on the right.



The top of second gear at 95 is spot on, so it seems accurate. Looking at the right hand side, I'd get a bit more out of the first three gears.

Other than the 0-100 dash needing only one gear change, am I really going to benefit from taller gears? I know that highway cruising rpm will increase a bit.

Thoughts?
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Last edited by sambo; 11-26-2013 at 05:00 PM..
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