Why is the bore stroke ratio so important?
The ‘Bore-stroke ratio’ is an important factor which determines engine’s power & torque characteristics. The engineers also classify and categorize the automotive engines according to their shapes. It’s the shape of cylinders as seen from the side of the engine.
Why is the stroke length shorter than the cylinder bore?
In this design, the stroke-length is shorter than the cylinder bore. Manufacturers also refer it as a ‘short-stroke’ engine. Generally, ‘Over-square’ design tends to produce higher engine speeds. Therefore, engineers refer to it as a ‘high-speed’ engine. As the stroke-length is short, the piston has to travel a shorter distance.
What does it mean to have a stroker engine?
So, what is a stroker engine? A stroker engine is, actually, simpler than it sounds. This type of engine only means that its engine size, or displacement, is modified or reworked to yield higher horsepower or torque output, or even both. Stroker engines involve two main aspects, namely the cylinder bore and compression stroke
What kind of engine does a Nissan a series have?
Perhaps the most interesting variety of A series engines was the AY12 engine. This was a special race-only Nissan factory ( works) racing version with a crossflow cylinder head. The AY12 was used in an under 1,300 cc (79 cu in)-class with a 76–76.8 mm (2.99–3.02 in) bore diameter.
What’s the difference between stroke and bore in an engine?
An engine’s bore is the diameter of each cylinder, while the stroke is the distance within the cylinder the piston travels. Basically, an engine’s maximum power depends on how many rpm it can produce.
How big is the bore and stroke of a Nissan Leaf?
Bore and stroke is 78 mm × 83.6 mm (3.07 in × 3.29 in). It was a 16-valve DOHC engine with multi-port fuel injection, for front wheel drive use. North American versions used Nissan’s NICS (Nissan Induction Control System), which opened up the secondary intake ports to each cylinder via a butterfly valve in each port.
What are the dimensions of a Nissan RB engine?
The stock dimensions for the Nissan RB Engine. RB20 – 2.0 L (1,998 cc), bore x stroke: 78 mm × 69.7 mm (3.07 in × 2.74 in) RB24 – 2.4 L (2,428 cc), bore x stroke: 86 mm × 69.7 mm (3.39 in × 2.74 in) RB25 – 2.5 L (2,498 cc), bore x stroke: 86 mm × 71.7 mm (3.39 in × 2.82 in)
Perhaps the most interesting variety of A series engines was the AY12 engine. This was a special race-only Nissan factory ( works) racing version with a crossflow cylinder head. The AY12 was used in an under 1,300 cc (79 cu in)-class with a 76–76.8 mm (2.99–3.02 in) bore diameter.