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 ...

Starting engine dynamometer pulls at low rpm is hard on the dyno and hard on the engine. Today, engine dynamometer testing is an integral part of many HOT ROD engine buildups and product tests.

A very good friend of mine, noted engine guru, and PHR contributor David Vizard, was once being queried about some aspect of engine theory. The interesting part of the exchange was when the fellow ...