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Old 06-13-2015, 11:23 AM   #1
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Speed versus RPM calculator

I found a web page, Speed versus RPM calculator that allows you to input different variables to figure out what RPMs you will running with different rear-ends, tires, etc. I have a stock 2012 V6 with a 2.70 rear end. At 80 MPH my tack says 2K RPMs. If I put in a 3:55 rear end this web page shows I will be running 2,650 RPMs at 80 MPH. Does this sound about right?

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Old 06-13-2015, 01:06 PM   #2
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3.55 / 2.7 x 2k = 2629 RPM @ 80 MPH

So, the speed calculator sounds about right to me.
- Sterling S197

2014 V6 w/ 6MT, Performance Package and Aluminum Driveshaft in Sterling Gray... The Perfect Road Trip Car (for me).
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