boring out your block will add how many cc's??

[Dugi]

the oem pistons are 86mm. when boring to 86.5 mm how many CC's will this add to your engine?? any rule of thumb or formula's for this??

[ILikeMy240sx]

displacement of an engine can be found by the following formula.

pi*(diam of piston/2)^2 * stroke * # of cylinders

Stock:pi *(86mm/2)^2 * 86mm * 4 *(1e-6L^3/mm^3) = 1.998L

You have:pi *(86.5mm/2)^2 * 86mm * 4 *(1e-6L^3/mm^3) = 2.022L

As you can see the displacement will not change much by boring out .5mm

[Dugi]

allrighty then!! thanks man. i didn't really go for the extra displacement. just wondered how much extra i would get. now at least I have the real 2.0 liter engine