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rhiasdaddy 05-01-2009 11:28 AM
engine math
 
can any one tell me the formula used in figureing c.u

TS1955 05-01-2009 11:31 AM
The formula is: .7854 x bore x bore x stroke x number of cylinders.

TS1955

fla1976 05-01-2009 02:08 PM
Cubic Inches
 
The formula for cubic inches is: Pi x radius squared x stroke x number of cylinders.

(radius is the bore/2)

A 283 has a 3.875 bore and a 3 inch stroke.

(((1.9375 x 1.9375) x 3.1416) x 3) x 8= 283.038525

Same as above but it is easier for me to use and visualize.

fla1976 05-03-2009 02:52 PM
Math
 
Here is a site if you don't want to do the math yourself.

http://www.mindsciencemotorsports.com/graphics/tech.htm


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