Bruce Crower’s 6 stroke Crower cycle engine
As we all know, the combustion engine does not really convert the potential energy in fuel to kinetic energy to move the car efficiently. We lose alot of that power – roughly 76% – in the form of heat. BMW has tried to salvage some of this lost energy with their TurboSteamer system which harnesses heat from the exhaust flow and uses steam to power an expansion unit connected to the crankshaft.
Someone in the engine business has another idea. Bruce Crower, the owner of Crower Cams and Equipment Company builds camshafts, crankshafts and connecting rods, including titanium rods for Formula 1 customers. He lets his company run itself while doing intensive R&D work in his 13-acre backyard in Jamul.
And his idea is a 6-stroke engine. He calls it the Crower cycle engine. Click here to read the rest of Bruce Crower’s 6 stroke Crower cycle engine

This is for those who appreciate the technology that goes into a powertrain. How does the new 1.8 liter SOHC i-VTEC engine in the new 2006 Honda Civic achieve good fuel mileage (Honda claims 1.5 liter fuel economy during cruising) while producing a respectable 140 horsepower and 174 Nm of torque? Let’s have a look at some of the technologies that went into this new engine – the R18A1.
The Project NEF engine aims to produce a high performance prototype engine without the need to resort to exotic materials or manufacturing technology, ensuring the transition from prototype to production with ease and speed. It was designed and developed by Lotus Engineering’s powertrain division.
Mercedes Benz was the first car manufacturer to use direct fuel-injection in it’s road cars, putting a direct-injection engine into the 1955 300SL Gullwing. Back then, things like fuel economy and emissions were not really an issue, but it is today. So car manufacturers everywhere are taking a look at gasoline direct injection to improve fuel efficiency and emissions.
When it comes to souping up cars, even laymen usually have two words in their heads – turbo and NOS. NOS, or its proper name nitrous oxide. Sounds cool doesnt it? 
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