Chassis Dyno ›What's the real-world difference between running an engine on an engine dyno, or, as installed in the car on a chassis dyno? Recently, we were able to conduct an engine dyno versus chassis dyno smackdown using the Ford 393 Cleveland stroker-engine from Don Hicks' 1973 Ford Mustang. With the engine already removed from the car for its original repairs, we could go for a twofer: Westech Performance has both a SuperFlow engine dynamometer as well as a SuperFlow chassis dyno. This could be because of smaller header tubes plus a full exhaust system, or because a chassis dyno extrapolates engine rpm from wheel speed and sometimes lags engine speed (somewhat analogous to a slow tach) … or both!. [Extracted from the article]
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