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Discussion Starter · #1 ·
Hey guys, I've got a 1964 mini cooper that's been undergoing a serious transformation to MR layout with a K20A in the back. Now that it's finally running, I've discovered a problem, the gearing is way too short for the small wheels! They're 13x7s and the light weight, high power, and small diameter make 1st gear almost unusable and I can't get past 60 (in 6th O_O) without making my ears bleed out. What options do I have for changing the ratios back to stock feel? Do I just need a new final drive? I've seen a few different ratios of final drive around, but which would work best for 13" wheels? Please make the droning stop and let me put my power down! Thanks for the help

EDIT: Good call, my bad it's the JDM K20A Type-R engine, Y2M3 code tranny I believe, those ratios anyway
 

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Discussion Starter · #6 ·
Hey thanks a lot, I'm actually going to look into new tires in January because with about 1500 lbs of car I'm having a bit of a traction problem no matter what gear-> :dance:
I'll have to get on those calcs after I figure out if I can get anything else under those wheel arches, not to mention rubbing. They're pretty cut out but 13 is already huge compared to stock 10's.
 
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