With every passing day the Mule provides opportunities beyond our original expectations. Since the 467ci engine belongs to HPP editor Tom DeMauro, it is at our beck and call. This affords HPP the ...

Increasing an engine’s compression ratio is a proven way of unlocking extra horsepower, but there’s a point of diminishing returns. The team at Garage 54, the Russian mechanics who built a V16 using ...

The new Infiniti QX60 Autograph AWD addresses some of its predecessor’s problems but doesn’t push for excellence.

Volvo’s beloved three-row plug-in-hybrid SUV’s new simplified powertrain delivers more of what the environment needs in a ...

We have applied advanced engineering technology to design the 350 engine that Chevrolet should have built. Using a stock block, crankshaft and rods, and only a few exotic parts, you can enjoy the ...

Question 1: Does anyone know if the Gen 1 Duke 390 comes with undercut valve stems? Both the exhaust valves have a narrower ...

Intake, compression, power, then exhaust. Every 4-stroke engine ever made – about 80% of all engines currently in existence – function on this principle – even rotary engines. But now, Porsche has ...