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Maine_Triker
06-23-2005, 09:25 AM
Say I bored out an 84 250r 1.25 over, how many cc's whould that be? Also do you know the equation for that?

Thanks

Phil

OldSchoolin86
06-23-2005, 09:33 AM
This free calculator is great for easy calulations:

http://www.virtualengine2000.com/Calculator.htm

Just plug in the numbers and instantly know.

ATC crazy
06-23-2005, 09:34 AM
Formula:

BORE (mm) X BORE (mm) X STROKE (mm) X 0.0031416 = Engine Displacement in CC's

Example: 92 X 92 X 69 X .0031416 = 1835cc

This may be for a twin cylinder engine. Try using this formula without the second BORE calculation.

OldSchoolin86
06-23-2005, 09:39 AM
Formula:

BORE (mm) X BORE (mm) X STROKE (mm) X 0.0031416 = Engine Displacement in CC's

Example: 92 X 92 X 69 X .0031416 = 1835cc

This may be for a twin cylinder engine. Try using this formula without the second BORE calculation.
http://www.3wheeler.org/vb/images/smilies/doh.gifLOL, that formula doesn't work at all. :p

Maine_Triker
06-23-2005, 09:39 AM
Just plug in the numbers and instantly know.

Not with dail-up! Lmao
Thanks guys.

OldSchoolin86
06-23-2005, 09:40 AM
Not with dail-up! Lmao
Thanks guys.
HUH? You download it to your computer and then run it.

Maine_Triker
06-23-2005, 09:45 AM
EXACTLY... it's take time to download...

ATC crazy
06-23-2005, 09:49 AM
You're right OS86...it dont work. lol

But this one should: http://home.quixnet.net/~cosmic/EngineCalc.htm

ATC crazy
06-23-2005, 09:51 AM
Just plug in the first three boxes (# cylinders, bore & stroke) and then just click on the next box and the dimensions will pop up