Transmission & Drivetrain Gearboxes, Differentials, Clutches

final drive VS close gear ratio

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Old Feb 20, 2010 | 05:24 AM
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Default final drive VS close gear ratio

final drive 4.785
or
close gear ratio
setup is
b20vtec fully build with skunk2 pro
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Old Feb 20, 2010 | 05:33 PM
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Default Re: final drive VS close gear ratio

Rev limit, tire size, whp/wtq, use of car, top speed needed in 4th or 5th?
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Old Feb 21, 2010 | 07:12 AM
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Default Re: final drive VS close gear ratio

rev to 8800
210whp
205/40/r17
i don't care about top speed but is it need close gear ratio or final gear 4.785 on a y21 tranny
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Old Feb 22, 2010 | 04:27 PM
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Default Re: final drive VS close gear ratio

There is a big difference between the two setups. What exactly are you doing with the car?
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Old Feb 23, 2010 | 12:09 PM
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Default Re: final drive VS close gear ratio

drag racing and daily driving

Last edited by egycasper16; Feb 25, 2010 at 08:49 PM.
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Old Feb 23, 2010 | 10:10 PM
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Default Re: final drive VS close gear ratio

What is the race weight?
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Old Feb 25, 2010 | 06:21 AM
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Default Re: final drive VS close gear ratio

the car weight 1100 kg

Last edited by egycasper16; Feb 25, 2010 at 11:12 AM.
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Old Feb 27, 2010 | 05:28 AM
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Default Re: final drive VS close gear ratio

any help
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Old Feb 28, 2010 | 02:04 AM
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Default Re: final drive VS close gear ratio

Close gear set would work the best IMO. FD might shorten up 1/2 too much depending on the tires you're using. Which ratios depend on whether you can rev it out in 4th or are limited to 8,800.
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