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how to find out the CC of your motor after boring
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Posted by: rebelbuggy

I wanted to know if anyone could tell me how you figure out what CC your engine is after you do stuff to it?

Mine is a 300ex its 281cc. (i think thats right) and I had it bore out .40 over, so is there a fomalar to figure it out or ???

If anyone knows let me know..

Posted by: dork

.040"=1mm
displacement=borexborexstrokex.7854/1000

so you have a 75mm bore now and stroke is 65.5, that makes it a 289.37, but you might as well call it a 290 right

Posted by: rebelbuggy

quote:
Originally posted by dork
.040"=1mm
displacement=borexborexstrokex.7854/1000

so you have a 75mm bore now and stroke is 65.5, that makes it a 289.37, but you might as well call it a 290 right

Oh alright, Cool thanks I didnt think anyone was going to answer