ratios questions ..

[DJ]

hi all
I need to work out some ratios .. and as Im not to mathmatically inclined I need some assistance ??

motor, max revs 7500 but working revs 2000 to 5500
gearbox, 1st 2nd 3rd fourth
2.785 1.545 1.00 0.694
diff 3.916
this then drives out to a further reduction of 3.7
Tire size 33 swampers ( 33x80x15 ?? )
how fast is the vechical travelling per 1000 revs ?

[kbushnz]

Hi Yah DJ
Here is a link to a gear calculator where you can plug in your current settings and then in the other change one or more and see what you get.
Found it useful when changing gear ratio / tyre sizes.

http://www.grimmjeeper.com/gears.html

Cheers
Calvin