I tried googling how to figure engine size and some stuff came up but i still cant seem to get it right. I have a esr 370 with a 78mm bore (on first bore) and a 5mm stroke crank can anyone help me?
How do you figure engine size?
LCB Honda R
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I tried googling how to figure engine size and some stuff came up but i still cant seem to get it right. I have a esr 370 with a 78mm bore (on first bore) and a 5mm stroke crank can anyone help me?
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13,288 Posts
Basic formula:
Bore x bore x .7854 x stroke...example for a 370CC = 78MM x 78MM x .7854 x 77MM = 367.93CC
Carlos.
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Does the crank add engine size?
Yup, that is what gives the stroke.
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Is the 77mm you used for stroke here a stock size stroke or is that with my 5mm stroke?
It would be nice to have this formula as a sticky. I use the Engine displacement Calculator on PS. Calculate Engine Displacement
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^^^ looks like a spammer ^^^
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I prefer regualr ham, not S P A M...
Although in an apocolypse, beggers can't be choosers.
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Now that's funny!:lol:
We really need a Mod to ban this jerk
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