Speedo gear calculator?

[AKcharger]

I saw a calculator somewhere for tire and gear combinations...can anyone help?

(edited )

Thanks

AK

[John_Kunkel]

You need to include the aspect ratio of the tires.

[AKcharger]

 

I thought a 215 60R 14 was standard...wait is "60" the aspect ratio?

[AKcharger]

Charged post a little...now just looking for calculator

[phat69charger]

Not a calculator but a reference chart: http://www.mymopar.com/speedometer.htm

[AKcharger]

Perfect!...thanks phat. Now anyone know the sidewall hight on a P21560R 14??

[John_Kunkel]

The diameter of a 215/60-14 should be 24.16". (215 X .03937 X .60 X 2 + 14 = 24.157)

Given that, the correct speedo pinion with 2.76 gears is 30 tooth. The current P/N for the pinion is 52068152.

[phat69charger]

Perfect!...thanks phat. Now anyone know the sidewall hight on a P21560R 14??

Try this: http://miata.net/garage/tirecalc.html

[AKcharger]

Cool!


Send this to the tech archives!!!!!!!!

[phat69charger]

Here's a few more Calculators:
http://users.erols.com/dmapes/GEARCLC.HTM
http://www.dakota-truck.net/TIRECALC/tirecalc.html
http://www.richmondgear.com/01calculators.html
http://www.keislerauto.com/tools/mopar_analyzer_6sp.html
http://www.csgnetwork.com/tireinfo4calc.html

Wheel Information: http://www.rsracing.com/tech-wheel.html

[phat69charger]

AKcharger, here's a calculator for the speedo: http://www.fortesparts.com/calculators.html