? for the gurus

[JATZ]

How do I find out the CC rating on a bored out engine ? Is there a mathematical equation ? I.E. bore x stroke x something else

[P38]

Use Pi R squared x Height for each cylinder

I.E. 3.142857 times the Radius Squared (Radius of the bore) times the Height (stroke).

Add the result for each cylinder together to obtain the final displacement.

That should get you pretty close.

Or use this online calculator

http://www.csgnetwork.com/cubicinchcalc.html#

[Sidewinder]

full it up with water
and see how much ya get a out, litre = 1000cc

[bogan]

Use Pi R squared x Height for each cylinder

I.E. 3.142857 times the Radius Squared (Radius of the bore) times the Height (stroke).

Add the result for each cylinder together to obtain the final displacement.

That should get you pretty close.

Or use this online calculator

http://www.csgnetwork.com/cubicinchcalc.html#

do you have to take into account the 'dome' part in the head?

[P38]

do you have to take into account the 'dome' part in the head?

Yes but only the portion the piston doesn't fill when it reaches TDC.

Use the calculator it will account for this.

[JATZ]

Yes but only the portion the piston doesn't fill when it reaches TDC.

Use the calculator it will account for this.

Cheers for that P38

Result = 734cc single cylinder :2thumbsup: thump thump thump
Thanks for the tip sidewinder but I just got the last o.s. piston in captivity and I don't want to wreck it

[P38]

Cheers for that P38

Result = 734cc single cylinder :2thumbsup: thump thump thump
Thanks for the tip sidewinder but I just got the last o.s. piston in captivity and I don't want to wreck it

No worries.

What have you got that in?

[JATZ]

No worries.

What have you got that in?

DR big 750cc single

[gwigs]

You will have to go deeper than that to test it Sidewinders way..:lol:

[Sidewinder]

You will have to go deeper than that to test it Sidewinders way..:lol:

o thought you were going to say you will have to go deeper to see how big my bore is lol