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Old 08-25-2007, 07:17 PM   #1
Mr. Wyndham
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How to determine displacement

I know what a 6.2L engine means in relation to a 2.4L engine, as I'm sure we all do - But I didn't realise how Manufacturers came up with these numbers.

I'll be honest, up untill about a year or so ago, I thought that they dipped engines into a Huge Vat of water, to see how much liquid it displaced...

So I'm posting this for those of us who didn't really know what these numbers meant; Displacement, is essencially (the volume of the cyllinders at bottom dead-center stroke) X (the number of cyllinders).

LS2:
it's bore(width) of the cyllinders = 4 in.
it's stroke (hieght) of the cyllinder = 3.62 in

So, the volume of each cyllinder = [pi * (r)^2] * Hieght.
[3.141592 * (2)^2] * 3.62
~45.5 cubic inches...multiply that by 8 cyllinders

~364 cubic inch engine. (or 6 liters)

I was actually surprised to find that the engine's physical size is relative to the cyllinder size, not the other way around. That was my lesson for the day.


NOTE: I aplogise to those who already knew this. I didn't so I assume others may not have either.
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