RPM vs. MPH

Started by Rosebud, May 24, 2018, 11:12:05 AM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

Rosebud

I still haven't gotten my Smith tach to work. In the meantime, has anyone worked out RPM vs. MPH for a 3.3:1 final drive w/ 10" wheels? Specifically, I'd like to know the MPH in 1st, 2nd, 3rd & 4th gear @ 6000 RPM. Thanks! 
Rosebud
...the sled, not the flower
https://www.facebook.com/PoserMotorSports

MiniDave

I had problems with one too, had to replace the wiring loom and connector that attaches to the tach....it had continuity on all pins and wires and checked out fine but it would not work, a new clip and harness fixed it right up. I ordered it direct from Caerbont in England....I think it was about $8 but it got my tach working again.
Complete failure at retirement

1989 Cooper Racing Green
2009 Clubman S
2014 Audi Allroad

jedduh01

http://www.guess-works.com/Tech/ratio.htm

4th with a 3:10 at 6k RPM is Infinity!   152 mph by the numbers!


You'll need to play with your details better but a good guide!