In a message dated 6/14/2003 4:03:04 PM Eastern Standard Time, LHenney@dellepro.com writes:

> Particularly good question regarding how is more
> compression attained relative to cubes (wish I knew-do we
> lose cubes?).

Well, George's answer makes some sense since:

8.5 compression gets 320 ci to 37.64
9   compression gets 320 ci to 35.55 a difference of about 2 ci.

Assume each piston is 4 inches in diameter.  the area of each piston is pi*2**2 times 4 pistons = approximately 50 square inches. To get 2 cubic inches over 50 square inches would be 1/25 of an inch in height - .04 inches added to each piston height.  Yep, my 320 becomes a 318 (I think - but then the compression ration would be the same as it was.  Well, maybe not... You see, I am confused.

Scott Krueger