Wärtsilä has announced the results of extensive testing of its 4-stroke ammonia engine, which demonstrated a reduction in greenhouse gas (GHG) emissions by up to 90% compared to traditional ...

Mixing gasoline and oil for a two-stroke engine. Ilya / Adobe Stock. Perhaps the biggest trade-off when comparing 2 stroke vs 4 stroke outboards is that four strokes might be more durable, but two ...

A detailed 2.0 litre V6 gasoline engine design has now been completed which is intended to deliver levels of performance and driveability more usually associated with 3-4 litre V8.

Finnish engine manufacturer Wärtsilä must be a fascinating place to visit. The company manufactures some of the most mind-bendingly enormous marine diesel engines in the world, like the record ...

On 4 stroke engines, fuel, air, and exhaust will only enter and exit through valves at the top of the cylinder. These valves, and the mechanism to make sure they open and close properly, are not ...

An old, rusty 1.5 inch gasoline water pump equipped with a 4-stroke Rato engine undergoes a comprehensive restoration to bring it back to operational condition. Years of exposure have caused rust ...

100cc 4 stroke bicycle engine kit online, 100cc Bicycle Engine Kit 2 Stroke Bike Motor Kit Petrol Gas Motor Conversion Kit Air Cooling Motorized Bicycle Kit Super Fuel efficient Modified Full Set ...

In a four-stroke engine, the piston moves up and down two times per combustion cycle intake or exhaust valve activity, resulting in slightly less power. 2-stroke engines also run on gasoline with ...

Oil for 2-stroke engines is more expensive, and since they don't use fuel as efficiently as a 4-stroke engine, you'll get fewer miles per gallon out of one.

Outside of early Saabs, most gas-powered car engines are a 4-stroke Porsche's 6-stroke patent seems to indicate it could eke more power out of an engine Unless you drive an early 2-stroke Saab ...

Classic 4-stroke A normal four-stroke gasoline combustion engine found in every car now works in four steps: intake (piston goes down sucking the air-fuel mixture in), compression (piston goes up ...