Tire engineers are quick to extol the virtues of testing new designs in the lab using calibrated test fixtures, including dynamometer wheels. Others argue that real world service conditions are the ...

We may have goofed, but we're man enough to admit it. Despite the countless engine dynamometer tests car magazines publish each month, we've rarely-if ever-explained how an engine dyno actually works.

Anyone who has lived on a healthy diet of off-road and performance magazines has gotten a pretty good taste of the dyno process, even if it's just served on the printed page. It looks pretty exciting: ...