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.

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.

Darrell Waltrip (84), Dale Earnhardt Sr. (76) and Cale Yarborough (69) rank as NASCAR’s three winningest modern-era drivers. Who’s No. 4? This week’s question: KNOWLEDGE Test your NASCAR Last week’s ...