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speed @ 6300rpm

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Old 05-31-2012, 04:39 PM
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Default speed @ 6300rpm
@6300rpm what speed would i be doing if i had a 3.93 diff and 245/40/18 tyres in 5th gear ?


sorry running a ponitac 2004 t56 box
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Old 05-31-2012, 04:48 PM
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245 mph, if it's got the .50 6th.
215 mph if it's the .57 6th.

This site is awesome. I use it all the time for work.

http://precisionsite.com/auto-x/tools/
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Old 05-31-2012, 04:56 PM
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^^Using the website he used, you'd be at 146 mph at 6300 in 5th gear. That's using the .84 ratio in the gto t56.
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Old 05-31-2012, 05:15 PM
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Whoops. He did say 5th, didn't he.
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Old 05-31-2012, 05:57 PM
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sorry 5th gear ratio is 0.74


so at 6300rpm 245/40/18 tyres 3.93 diff 5th gear ratio of .74 what speed would i be doing?
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Old 06-02-2012, 02:03 PM
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165 if your 5th gear is .74
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Old 06-02-2012, 02:29 PM
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Originally Posted by hsvgtsr
sorry 5th gear ratio is 0.74


so at 6300rpm 245/40/18 tyres 3.93 diff 5th gear ratio of .74 what speed would i be doing?
In a 2004 Pontiac GTO T56 that hasn't been re-geared, it's .84.
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