I seem to remember an online displacement calculator if you put in stroke, deck height, and crank size..... anybody remember the link? (I can't find it in a search.....)

Is this it: bore x borex3.14x stroke=???

so 84.5 x 84.5 x 3.14 x 95 = 2129cc?

OR

Bore x bore x stroke x # of cyls x .7854 = displacement

84.5 x 84.5 x 95 x 4 x .7854 = 2131cc?

 

dont you have the volume for displacement in your sig? Why are you asking for deck height and "crank size" ?

 

crank size aka stroke

V = (r² * Pi * Stroke * # of cylinders)/ 1000

In my case, V = 84.5 squared x 3.1415 x 95 x (4) and divide by 1000
Which is 2130

I'm second guessing the formula as I got some differences in my calculations.....

 

well, your original post says "stroke" and "crank size" as seperate variables.

Anyway, its bore x bore x stroke x .7854 x number of cylinders.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Combustion Contraption &raquo;</TD></TR><TR><TD CLASS="quote">well, your original post says "stroke" and "crank size" as seperate variables.

Anyway, its bore x bore x stroke x .7854 x number of cylinders.</TD></TR></TABLE>


Yeah on me, I was typing faster than I was thinking..... anyway, I'll round down and call it a 2.1L motor.

 

yes borexborexstrokex.7854x (#cylinders)