Btr Diff output speed rpm ? Need to work out max pulse hz

[hiltonig]

Ok so I know the number of teeth on the diff, anyone have any idea the max rpm of the output shafts on the diff ?i need to check the sensors I have will cope with the switching frequency.

[sparkythecat]

If your maximum speed is 150mph then the distance tavelled per minute will be

150 x 1760 x 36
___________......... = 158400 inches per minute
60

Next measure the diameter (d)of your wheel and tyre in inches

The circumference of your tyre will be

(d x 22)
_________ ......... = C inches

7

Dividing 158400 by your calculated circumference C will give you the rpm of your wheel, and the driveshaft to which it is attached when travelling at 150mph.

If you are convinced that you car is likely to have a VMax of more than 150mph, then adjust that figure accordingly

Edited by sparkythecat on Sunday 1st January 13:27