The Porsche 718 GT4 RS is tested on the dyno, revving to 9000rpm with its 4.0 naturally aspirated flat six. This video compares JCR and Akrapovic exhaust systems, highlighting tone, volume and ...

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 ...

Hennessey Performance dyno tested the C8 Corvette ZR1 and recorded 1,050 hp, a figure that appears to contradict its 1,064-hp factory crank rating. Automakers typically advertise crank horsepower, ...

Evan Williams is an automotive journalist and mechanical engineering technologist with more than a decade of experience in the industry. He has written for the Toronto Star and AutoTrader Canada and ...

Let's get straight to numbers. When the Chevrolet Corvette ZR1 rolls off the production line of General Motors' Assembly Plant in Bowling Green, Kentucky, it is supposed to come with 1,064 horsepower ...