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Enigine Displacement Calculator

30K views 16 replies 11 participants last post by  robin13 
#1 ·
This is a link that you can find your exact engine displacement. All you need is the Bore and Stroke. Make sure you select the correct unit of measurments.

Calculate Engine Displacement
 
#2 ·
That works pretty good.
or you can do it the old fashioned way.... bore X bore X stroke x .7854
example:
74.00mm piston 57.3mm stroke (250X)
you move the decimal left one number.
7.4 X 7.4 X 5.73 X .7854 = 246.4387 CCs
 
#6 ·
EXACTLY!! but you can swap in for an 85mm piston and have 385CCs..Lmao but 30 over is all you need to hang with a 450R
 
#8 ·
Welcome to the forums.... CHeck for anything that may have came unplugged. or a blown fuse. a coild could quit without warning but generally they will work when cold and when they get hot they start to fade away.
 
#12 ·
You are correct mister..lol you started with 229CC..lol long way from 250 huh
 
#13 ·
Yea I know I dont understand that lol why call it a 250? call it a 230cc... but using that calculation with my stroke, 62.2 mm i believe, and the bore size 69.4 (biggest piston i found on bike bandit) it came out to be 235. but while typing this message it occured to me that that is just the piston size not the bore, but bore wont be far off lol
 
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