YardstickThere is an old adage that you don't race dynos and flow benches. Manufacturers of test equipment use different standards and test procedures that will affect the results. This brings me to ...

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.

When it comes to vintage Chevrolet engines, the L88 is near the top of the epic performance pyramid. For those out of the loop, the L88 is a 427-inch big-block V-8 engine that was originally factory ...

A stock-based GM 4.3L V6 shocks the dyno with 1,400 horsepower at 33 PSI, proving this twin-turbo truck engine is far stronger than expected.

According to Chevrolet, the new Corvette ZR1’s twin-turbo 5.5-liter flat-plane crank V8 delivers 1,064 hp and 828 lb-ft of torque. That’s enough to blast it to 60 mph (96 km/h) in 2.3 seconds and down ...

The Corvette ZR1’s 5.5-liter LT7 twin-turbo V8 may actually produce nearly 1,200 hp. If the ZR1’s engine delivers that much power, the ZR1X could reach up to 1,350 hp. According to Chevrolet, the new ...