Overall, the new twin-turbocharged 3.0-liter V6 engine weighs 486.3 pounds, which is just 17.7 pounds more than the engine it is replacing (the V6 core weighs far less than its predecessor) ― an insignificant increase when one considers the greater horsepower, improved efficiency, and the adaptability of the new engine in a variety of Infiniti's models.
Sometimes, horsepower and fuel efficiency are just two sides of the same coin.
This chapter covers the relationships that the compressor vendor uses to determine the head produced, efficiency, horsepower required and overall design for a particular compressor application.
The chapter concludes with the observation that, a small increase in firing temperature has a significant effect on produced horsepower on engine efficiency.
Direct-injection technology pushes fuel into the combustion chambers of a traditional engine to create more horsepower at greater efficiency, resulting in better fuel economy and lower emissions.
The technique works well enough that Montemagno and his co-workers have demonstrated one of these hybrid motors spinning away: Montemagno's team is measuring things like horsepower and motor efficiency, tests that would feel right at home to any mechanical engineer scrutinizing a car engine.
It also means tuning smaller engines to produce more horsepower and better efficiency ratings, like Bentley has done with the new Flying Spur V8, or using clean-burning diesel technology to eke out more savings on gasoline like plenty of vehicles at Audi and Volkswagen.
A smart choice for green-minded felons, the 6.6-liter Duramax clean-diesel engine provides 397 horsepower and fuel efficiency of nearly 19 mpg.
The outgoing model's surly V-8 is replaced with a 3.5-liter, twin-turbocharged EcoBoost engine, with 411 horsepower and better efficiency.
