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Old 03-21-2014, 08:41 AM
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Default gearing help needed

I know this has been asked a thousand times before nut after multiple searches I couldnt find am answer that fits my circumstance.
Anyway I'm setting up for mod tc will be running a tc6.1 with tekin 7.5 what is a good starting point for gearing? The kit comes with a 48p 87t spur but with the max 35t pinion that's like 6.4 FDR seems really off I thought 3.5-4 FDR was the magic number. Should I switch to 64 pitch gears or is around 6fdr what I'm looking for with this motor and running maybe some boost? Any help appreciated.

Last edited by scooby61; 03-21-2014 at 08:44 AM. Reason: typo
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Old 03-21-2014, 08:58 AM
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For Mod, 4.0 is way too tall. Try it with the kit 6.5 and run boost. Looks like most of the setups on Petit are even geared toward 7.0 (87/23).
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