What is the advantage of a longer stroke engine?
Now, while the power produced by a typical long stroke engine is relatively less, it has its own advantages. These engines produce a much healthier torque at the lower range of the rev spectrum lending themselves to torquey, lazy revving machines very well.
Is longer stroke better?
The short answer is that a bigger bore is generally the best way to get more power. A bigger bore with a shorter stroke also allows an engine to rev higher, which creates more horsepower. Conversely, a long stroke is generally better for fuel efficiency, because it reduces surface area during combustion.
Is a 4 stroke more powerful than a 2 stroke?
Four-stroke engines are heavier; they weigh upwards of 50% more than a comparable 2stroke engine. Typically, a 2-stroke engine creates more torque at a higher RPM, while a 4-stroke engine creates a higher torque at a lower RPM. That being said, 2-stroke engines are more powerful.
Why do diesel engines have longer stroke?
Diesel engines are designed with longer strokes in mind, as this produces more torque and more power. The more pressure built in the strokes and cylinders, the more torque the wheels will have. The combustion temperature of diesel fuel is also designed for higher torque.
What is better more torque or more horsepower?
Torque, simply, is the ability of a vehicle to perform work — specifically, the twisting force applied by the crankshaft. Horsepower is how rapidly the vehicle can perform that work. Because there is generally a limit on how fast you can spin an engine, having higher torque allows for greater horsepower at lower rpms.
How do you get more horsepower than torque?
There are several different ways to increase torque and horsepower: Install a cold-air intake: A cold-air intake improves turbulence to the combustion chamber, allowing fuel and air to mix more uniformly and detonate much more evenly; this improves compression and leaves less fuel waste.
Does higher compression make more torque?
Increase in compression ratio induces greater turning effect on the cylinder crank. That means that the engine is giving more push on the piston, and more torque is generated.
Which engine gives more power 2-stroke or 4 stroke?
Because combustion takes place with each revolution of the crankshaft with a 2-stroke, this format puts out more power than a 4-stroke engine and the power has more instantaneous delivery. This are some reasons why 2-stroke engines have a long history of use on many different types of motorcycles.
Why does a long stroke produce more torque?
Consequently the mechanical torque advantage of a long stroke is significantly diminished by the reduced force that’s pushing against the piston when the leverage of a long crankshaft stroke is greatest. An engine produces peak torque at the rpm where it is most efficient.
Which is better short stroke or long stroke?
As i have read in several articles, it is obvious that short-stroke or oversquare engines can rev higher and produce more power and less torque and usually used in sports cars but long-stroke engines are good for high low end torque and can’t rev as high as short-stroke engines.
Why does an oversquare engine produce more torque?
I think you’ll find you are a bit off there. There are a coupe of reasons why stroked engines produce more torque, they are in Heywoods book on engine fundamentals. One reason is that force decays away far quicker in an oversquare engine.
Which is better short stroke or oversquare engine?
Oversquare is also more popular among manufacturers as it’s easier to increase engine capacity, since widening the bore takes less work than elongating the stroke. Widening the bore only requires “overboring” i.e. cutting away material in the cylinder wall.