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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


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Old 08-31-2013, 01:20 PM   #1
peachch
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Change FD ratio to 4.56 by changing only pinion

Factory ring/pinion is 41/10. Can I just change pinion from 10 teeth to 9 teeth without swaping Factory ring? Then, FD ratio will be 41/9 = 4.56.
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Old 08-31-2013, 01:25 PM   #2
448hpsti
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They won't mesh
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