Chassis Dyno

Aaron · Post by **Aaron** » Sat Jul 09, 2005 2:38 am

Quick question. I was under the impression that a chassis dyno is where the engine is out of the car, not turning through a tranny, driveshaft, axle, or wheels, just turning, giving you crank horsepower. Is this correct or is a chassis dyno where the engine is in the car, as it drives, and it gives you wheel horsepower?

I know the difference between crank and wheel hp, and that they are typically 15-20% apart, but which one does a chassis dyno give?

Thanks

Series8217 · Post by **Series8217** » Sat Jul 09, 2005 3:25 am

Engine dyno --> engine attached to dyno. result: crank HP.
Chassis dyno --> engine is in car chassis attached to dyno. result: wheel HP.

Shaun41178(2) · Post by **Shaun41178(2)** » Sat Jul 09, 2005 11:32 am

Series8217 wrote:Engine dyno --> engine attached to dyno. result: crank HP.
Chassis dyno --> engine is in car chassis attached to dyno. result: wheel HP.

yup

Aaron · Post by **Aaron** » Sat Jul 09, 2005 8:08 pm

Thanks, I see know!