6speed 3.73 rpm per mph in gears

[JimBeck]

Wondered if anybody had charted mph/rpm data for the 6speed with 3. 73 rear end. Don,t like the idea of writing and driving at the same time. Thanks

 

[klenger]

The Excel worksheet at the link below has the info you are looking for. You can change the tire size, gear ratios, etc to suit your needs.



http://www.klenger.net/dodge/general-reference/gear-speed-calculator.xls

 

[Kirk_B]

Nice spreadsheet! I was needing the same thing.

 

[Vaughn MacKenzie]

The 3rd Gen trucks have a 108-mph speed limiter



Vaughn

 

[JimBeck]

Thanks. Great chart. Jim Beck

 

[Crunch]

Ban speed limiters!

Originally posted by Vaughn MacKenzie

The 3rd Gen trucks have a 108-mph speed limiter

Never had it up to 108 on mine... yet. Do the Edge and other boxes disable the speed limiter? I remember reading about a box for a Ford and one of the good features was that it pumped up the volume:



http://performanceford.com/powdeis.html

"Oh, your 95/100 MPH speed limiter is toast too! We set it around 140MPH!"

 

[Crunch]

Originally posted by klenger

The Excel worksheet at the link below has the info you are looking for. You can change the tire size, gear ratios, etc to suit your needs.



http://www.klenger.net/dodge/general-reference/gear-speed-calculator.xls

I agree, the chart rocks! It also gives us a great illustration as to the minimal difference between the standard and auto gear ratios in the upper end: . 73, . 75, and . 69.

 

[DLeno]

Originally posted by Crunch

I agree, the chart rocks! It also gives us a great illustration as to the minimal difference between the standard and auto gear ratios in the upper end: . 73, . 75, and . 69.

what do you mean by the upper end? Engine RPM in 6th gear is always 5. 8 percent higher than in overdrive, no matter what the speed. maybe thats what you mean -- the difference is only 5. 8% for the top highway gears. thats about 100 rpm at 2000.