boring cylinders

[Anonymous]

What it the formula for figuring over boring? I mean how to you figure out the extra cubic inches when a cylinder is over bored (i.e. 040 over)? I know it's on someones website but I can't remember which one I saw it on.

-Chris

 

[CoupeBoy]

its those darn Schjeldahl brothers, they have a compression calculator that allows you to add the overbore to the calculator and then it tells you the size once you hit calculate
http://falconperformance.sundog.net/compcalculator.asp

add your .040 over to the stock 3.68 to get 3.72 and then hit calculate (if you havent changed anything else) it says you have not got a 204.

have fun
ron

 

[MLINE]

It's just the area of a circle x height (stroke) x number of cylinders = cubic inches

area of a circle = (3.1416) x (radius squared)