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Old 11-13-2002, 05:54 AM
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Post gear ratio?

I have a 84 Cutlass with 403 engine th400 and 3:42 rear gear. The engine runs about 4700 rpm in the 8th. I have 29 inch tires. I am thinking about going to 3:90 gears. Does anyone know what rpm this will bring the engine to in the 8th?

I haven't turned the engine over 6000 yet. Still trying to find the sweet spot for it. The tires are 29 by 10.5 slicks. Horese power about 400 and don't know about torque. It seems to come on the strongest around 4500.

[ November 19, 2002: Message edited by: whunter5102 ]</p>

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Old 11-14-2002, 09:39 AM
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Give me 24 hours to get to my other computer and I'll run the numbers for you.

If you want, post as much information about the car that you can and I'll run all of the data and give a full performance report.
Will need Specs on the engine, horsepower and torque if known.

Redline of engine.
Torque converter information
Complete tire size and type.
Weight of car with driver
Specifics on body
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Old 11-14-2002, 03:18 PM
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i think the web site is randysringandpinion.com
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