What rpms would 3.73's and 3.42's put me at 75mph?
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Supreme Member
Joined: Jan 2003
Posts: 2,043
Likes: 3
From: San Diego
Car: 1994 Trans Am
Engine: LT1
Transmission: Auto
Axle/Gears: 3.23
What rpms would 3.73's and 3.42's put me at 75mph?
At 70mph I'm cruising at 1900rpms with the 2.73's. What would I be doing with 3.73's or 3.42's. I have an automatic car.
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Joined: Oct 2002
Posts: 9,067
Likes: 1
From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
my T5 in 5th gear on the highway, around 65mph, does about 2500 rpm. I have 3.73 gears.
Member
Joined: Jan 2005
Posts: 195
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From: East Texas area
Car: 92' B4C Camaro
Engine: 350
Transmission: G-Force T5
Axle/Gears: 3.73
If you know your Final gear in you Auto tranny use this:
https://www.thirdgen.org/newdesign/t...ulations.shtml
https://www.thirdgen.org/newdesign/t...ulations.shtml
Member
Joined: Jan 2003
Posts: 404
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From: Hartland MI
Car: 89 Formula
Engine: 355
Transmission: 700r4
Axle/Gears: 3.73
Don't forget you need to factor in your tire size, try this:
http://smokemup.com/auto_math/mph_range2.php
http://smokemup.com/auto_math/mph_range2.php
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From: Norfolk, VA. USA
Car: 86 Trans Am, 88 Formula
Engine: 95LT4, 305TPI
Transmission: T56, T5
Originally posted by colonboy14
A little less than 2000 at 80.
You guys need 6 gears.
A little less than 2000 at 80.
You guys need 6 gears.
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