cox

iTrader: (2)

Guys,

im new at electic 1/10 touring cars i really want to know how to compute which pinion i should use. im using yokomo 4mtc-sd-ssg im racing stok motor for now i havent change my stock spur which is 70t, can you please help me with the easiest formula to compute the right gear thanks in advancce...

zachzachz

To get your final outdrive ratio (which is the overall ratio of your gears) you simply do some math:

spur/pinion times your cars gear box ratio which should be in your manual.

like with my car I'm using a 88t spur and a 24t pinion so my formula would look like this:
88/24 x 1.83= 6.71

The 1.83 is my cars gear box ratio. You generally want to keep your final outdrive ratio around or above 7, dont go less otherwise you'll probably cook your motor.

Hope that helps

Ko Racer

http://www.arroyoc.com/index.cfm?fus...utilities.gear

CRASH

iTrader: (26)

Great web site link.

Thanks,

cox

iTrader: (2)

thanks a lot for the help ill now i know. appreciate it..

Tag

iTrader: (31)

for your particular car ( SD ) here' s the calculaiton spur/pinion X 2.35 ..