Torque at the wheel or at the output shaft?

Hi guys, simple question:

I’m dropping a yz250 engine in a golf cart. To select driveline components, I’m trying to find a ballpark torque value for the engine. I’ve seen a number of dyno charts that put me at about 30ft*lb max. 

My question is: Are these values the torque at the wheel, or the torque at the countershaft sprocket? If it’s at the wheel I’ll work backward to the sprocket for my calcs. 


Thank you!!!


They are most likely torque at the crank. Torque at the counter shaft will be higher by the gear ratio from the crank to the counter shaft.   250 and larger engines can have enough torque at the counter shaft to create 1000lbs, or more, of tension in the chain.

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