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 ...

Formula 1's governing body the FIA says the series' power unit manufacturers have unanimously approved changes to how engine compression ratios are measured, with revisions coming as early as 1 June.

Diesel engines can deliver years of reliable service if you understand their needs and follow a preventive maintenance plan. From compression testing to adjusting service intervals for severe ...

Hamilton addresses rumors of Mercedes’ technical advantage after day one of preseason Bahrain testing. Concerns raised about Mercedes’ fuel loads, engine modes, and possible compression ratio edge.

‘It’s a big difference’ — Collins questions whether the FIA test reflects real engine heat.

Rolls-Royce and the U.S. Air Force validated the F130’s ability to meet performance requirements for the B-52 missions, getting closer to flight testing. Engine maker Rolls-Royce announced on Feb. 24, ...

Hypersonic developer Hermeus has begun testing a proprietary pre-cooler engine technology that will be a critical feature of the company’s ultra-fast Quarterhorse aircraft. Pre-cooling refers to the ...