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Re: To swap or not to swap
Quote:
Originally Posted by JaggedEdge
According to the variables you have given (Turbo 350 {final drive ratio 1.0}, RPM, and tire size) this calculator indicates 63 mph at 3000 RPM is only achieved with 4.11 rear end gears. Perhaps your tach or speedometer is in error.
You can calculate the rpm you will need to turn with the same combination of variables with a 3.08 rear gear by trial and error in the RPM box, or using the slider tab. Just keep testing rpm numbers until you get the speed you are looking for. http://www.markwilliams.com/calculators.aspx
edit to add: you can change variables like transmission type, wheel size ect. to look at different options. This is a fantastic planning tool to use!!! A 700r4 AND 3.08's will cut your rpm in half!!! |
You have to factor in the torque convertor adding about 200rpms.Them calcs. don't do this.
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1984 1ton 4x4 crew cab dually 6.2 diesel,465,205,D60,D70,1987 3/4ton 4x4 suburban 5.7 FI350,TH400,208,1985 CJ-7 FI406,465,205,D60,FF14, 1970 Jeepster 350,465,205,D44,FF14,
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