This was a lot tougher than we thought. Some time ago, Speed-O-Motive built a test engine whose only purpose in life was to live on the dyno and test our harebrained ideas to make more power. While ...

If you've been following our budget 318 build, you know it's built and it's finally time to put it into the car-in this case, the car is a '66 Barracuda. The premise of this engine rebuild was to ...

HOT ROD convinces Mystery Motor owner Tom McIntyre to bring his 52-year old prototype 427ci Chevy big-block engine built for NASCAR racing to the engine dyno. We spin the 427 to more than 6,000 rpm ...

Rotary engines have been around as a niche solution in cars since 1961, but were made famous in automotive culture by Mazda using the Wankel single triangle-shaped rotary piston design. Mazda used a ...