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Discussion Starter · #1 ·
I need speedo scaler inputs for a gear change and use TunerPro.. I was wondering if someone with Tunercat could use the speedo tool to get me the inputs..

4L60e
28" MT Radial 740 revs per mile
4.30 gears

Thanks in advance!
 

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For Tire Dia 28 in. (Software says thats 735 Rev/Mile)
Rear end ratio 4.30:1
StockSpeed Sensor
F or B Body
Auto

Speedometer Scalar: 32
Speedometer Scalar Fraction: 1.012
Speedometer Scalar Scantool: 52.675
Time Between Pulses for Stop: 15.625
Pulses Per Driveshaft Rev: 40
Speed Correction Factor: 0.3892

For 740 Rev/Mile
Rear end ratio 4.30:1
StockSpeed Sensor
F or B Body
Auto
Speedometer Scalar: 32
Speedometer Scalar Fraction: 1.006
Speedometer Scalar Scantool: 53.033
Time Between Pulses for Stop: 15.625
Pulses Per Driveshaft Rev: 40
Speed Correction Factor: 0.3869
 

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Discussion Starter · #4 ·
You guys are awesome! Where do I find the "Speedo correction factor"? I'm not see it in TunerPro.
 
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