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GT2EvoGuy GT2EvoGuy is offline
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Join Date: Jun 2008
Location: Connecticut
Posts: 121
Garage
Hi JBL,

So out of curiosity I inputed your car's values into the calculator as best as I could. The output the calculator came up with was 60-120mph in 6.25 seconds. Not that far off your actual time of 6.0 seconds on the Vbox.

To get this output I used the values you gave me:

Weight 3000lbs
Drag Coefficient 0.4
Frontal area 20ft

I plotted your rear wheel torque curve into the chart section at 500rpm increments just eyeballing your sheet as closely as I could (I had to guess at the 7000 figure but im thinking you shifted around 6500 max anyway):

3000 - 327
3500 - 433
4000 - 490
4500 - 528
5000 - 520
5500 - 471
6000 - 431
6500 - 401
7000 - 350

Stock 4 speed so gearing is:

2.25
1.304
.892
.625
4.22 final drive

245/45/16 tires

190lb driver
600ms shift time (you said just over half second)

I wish I had more actual Vbox results to compare to the calculated results but in this case the calculator comes pretty close.
Old 11-22-2009, 08:36 PM
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