chewy54409

iTrader: (1)

does any one know what the internal drive ratio for a stock slash is i am trying to find my fdr for my gearing thanks

don74

iTrader: (34)

2.7272 is the internal transmission gear ratio. Assuming original 86T spur and 18T pinion then Spur/Pinion ratio is 4.78 : 1.

Total Reduction Ratio is 4.78 X 2.7272 = 13.0360

Here's a link to something that would be of great help if you plan to go brushless.-
http://scriptasylum.com/rc_speed/_top_speed.html

Just sharing what others have shared with me.

-don

CraigV

iTrader: (1)

Also, try www.comeseethis.com to figure out what FDR you should have for a particular motor brand and size.