Transmissions and Drivetrain Need help with your trans? Problems with your axle?

RPM question

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Old May 3, 2014 | 10:52 PM
  #1  
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From: Mesquite, Texas
Car: 89 rs, 86 Trans Am
Engine: RS-V6... Trans Am-LG4
Transmission: RS-T5... Trans Am 700r4
RPM question

Either I haven't found the right gear calculator, or I don't know how to make them answer my question

My question is this....

If I'm running a v8 at 70 mph, what's the difference in RPM's of a 6th gear of a LT1 T56 with a 3:42 rear end
vs...
same car, but running 70MPH in 5th gear of a T5 with a 3:08 rear end


stock tires, 245/50/16 with a 26" height
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Old May 3, 2014 | 11:04 PM
  #2  
58mark's Avatar
Thread Starter
Supreme Member
iTrader: (3)
 
Joined: Jan 2009
Posts: 4,009
Likes: 6
From: Mesquite, Texas
Car: 89 rs, 86 Trans Am
Engine: RS-V6... Trans Am-LG4
Transmission: RS-T5... Trans Am 700r4
Re: RPM question

never mind,,, I found the calculator I was looking for

Answer:
t5/3:08 combo 1978

LT1/3:42 combo 1568 RPM

http://chevellestuff.net/tools/rpm_calculator.htm

Last edited by 58mark; May 4, 2014 at 08:00 AM.
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