Rotax says the new 912iS fuel-injected 100hp (75kW) engine it plans to begin delivering for light sport aircraft (LSA) in May will have 21% better fuel efficiency than the carburetted 912S and 30-70% ...

The subject of electronics in hot rodding rivals politics and religion as topics to be avoided in polite company. Mention computers to a reactionary hot rodder and he'll likely declare that silicon ...

Electronic fuel injection is older than you think, the earliest example being the failed Bendix Electrojector system from 1957. Bosch bought the rights to the Eletrojector system and developed it into ...

This is the twin TBI setup attached to the top of the new cross-ram manifold. Note that fuel enters the left TBI unit first and then on to the right unit before being returned to the tank. Although ...

Automobile engines have undergone tons of changes over the years, primarily to make them more efficient. For the most part though, engine changes result from a string of iterative improvements on ...

Port fuel injection (PFI) was a major milestone in the early '80s. The integration of PFI rapidly changed the way fuel was delivered by increasing fuel economy and improving engine performance. Even ...

The Komatsu hydrostatic drive uses a high-speed and low-speed motor. When lots of torque is needed, both drives work through the crankcase; but when the machine gets up to speed, a clutch removes the ...

Automakers have long touted the benefits of fuel injection, claiming increased efficiency and power. But as more cars have the system installed (around 73% in 2023), more and more consumers are ...

More than five-and-a-half decades have passed since the first mechanical fuel-injection system appeared on the C1 Corvette and full-size Chevy sedans, but its remarkable how well the system worked in ...