Originally Posted by namtar
I wanna know what's the basic stats of an engine.
I know about cylinder that's okay.
But I'd like to know what 1.8L or whatever the number of L means...
is it reliated to the cylinders?
And what it improves or makes worse?
Does it have an impact on the fuel you use?
That's related to the displacement of the engine.
Okay, there are 1000cc's (Cubic centimeters) in 1L. So, your 1.8L, that means you have 1800cc's of displacement. Since there's 4 cylinders in a 1.8L motor, 1800/4 = 450cc per cylinder. That is how much each cylinder has for displacement.
Displacement if you don't already know means how much the piston moves up and down, how much volume it's moving.
Having a bigger engine say a 350ci (5.7L) will generally last longer than a little 2L engine, because, while the 350 is running at 1500RPM, the little 2L is running at 2500RPM, so it's doing a lot less movement, but it also has a lot more parts to it that can fail so it pretty much evens out.
The bigger the engine the more fuel it uses, the smaller, the less (to an extent, if you under-power a vehicle it will use more fuel than a bigger engine). Take the Mustangs for instence, the new ones. The GT's have a 4.6L motor and probably get about 25mpg (highway) while the V6's 4L, get probably closer to 30mpg (highway) and the 4L will be way better in the city too, it's the city where the mileage gain is most noticeable in smaller engines.