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**Gregski** · 12-08-2021, 08:13 AM

well I couldn't sleep so I punched some numbers into the good ol' Lotus 1-2-3 (pronounced: Excel) ha ha to correlate RPMs to Miles Per Hour based on my 3.73 rear end and 215/65R-17 wheels

I relied on the good ol' folks at x-engineer.org to provide the complicated formulas, (and our daughter to recite pi to the 57th digit):

I'm gonna post some random pics from their site to intimidate you and make myself look smart, ha ha

and yes these motors can spin above 10,000 RPMs easy

12-08-2021, 08:13 AM	#330
Gregski Post Whore Join Date: Aug 2014 Location: Sacramento, CA Posts: 10,819	Re: My Dusty 71 GMCe Electruck well I couldn't sleep so I punched some numbers into the good ol' Lotus 1-2-3 (pronounced: Excel) ha ha to correlate RPMs to Miles Per Hour based on my 3.73 rear end and 215/65R-17 wheels I relied on the good ol' folks at x-engineer.org to provide the complicated formulas, (and our daughter to recite pi to the 57th digit): How to calculate wheel and vehicle speed from engine speed How to calculate wheel radius I'm gonna post some random pics from their site to intimidate you and make myself look smart, ha ha and yes these motors can spin above 10,000 RPMs easy Attached Images Last edited by Gregski; 12-08-2021 at 03:10 PM.