Since the beginning of hot rodding, gearheads have endeavored to increase the performance of internal combustion engines through the optimization of valve timing. It's been proven time after time that ...
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What Was The First Engine To Feature Variable Valve Timing & Why Was It Such A Game Changer?
The first production car engine with variable valve timing (VVT) came from Alfa Romeo in 1980. It was installed in the fuel-injected Alfa Romeo Spider. Before this, a few experimental systems existed, ...
Harley-Davidson has filed a patent application for a variable valve timing (VVT) V-twin engine, possibly for the Sportster to improve economy and reduce emissions. The iconic American manufacturer has ...
SAE Transactions, Vol. 112, Section 3: JOURNAL OF ENGINES (2003), pp. 124-134 (11 pages) An experimentally derived map of the engine volumetric efficiency is usually employed to control the A/F ratio ...
The language of import performance can be strange. Sometimes it's a verbal stew of numbers and letters--RX-8, NSX, and MR2, for example--that seem randomly tossed together. At other times it adopts ...
About two months after it said it would release new CVO versions for the Street Glide and Road Glide motorcycles, Harley-Davidson did just that. The wealth of details about what's new on the two rides ...
Downsizing and turbocharging. For a car nut, those two words spell trouble. Most automakers, however, think otherwise. Mazda tries to keep the N/A flame alive, and so does Toyota. If you’re living in ...
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