With Project Pure Poncho fully broken-in and its power documented (491.8 hp/551 lb-ft), it was now time to begin our research and development work. As a review to those who may not have followed the ...

A method tested on various diesel blends of known cetane numbers showed a good correlation with the fuel’s octane numbers. Spontaneous ignition results in knock in a spark-ignition engine, whereas ...

In the June 2006 issue of Motor Trend, our "Strike Force: Target Z06" cover story highlights the track test five of America's hottest tuner vehicles against America's best factory supercar: the new ...

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 ...