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Work out CC
Posted:
Sun Jun 09, 2019 8:08 pmby Hughieboy
Anybody know how to work out cc...??
I have a GT186 with a 116mm conrod, 58mm stroke.
8mm of packers and gaskets at the base and a 2mm head packer plus regular thickness gasket. I just wondered what the calculation is?
Cheers!
Re: Work out CC
Posted:
Sun Jun 09, 2019 8:15 pmby MickYork
Your cc wont change.
cc = stroke x area (barrel radius squared x pye)
Re: Work out CC
Posted:
Sun Jun 09, 2019 8:25 pmby Hughieboy
So when a 60mm stroke increases the capacity, is that because it’s travelling 1mm further either way? Meaning that with mine you discount the packers, ie it just pushes everything away a bit but doesn’t increase capacity?
That would make sense if I’m thinking correctly.... therefore it doesn’t matter how thick the base/head packing, if it’s a 58mm stroke it remains 186cc?
Re: Work out CC
Posted:
Sun Jun 09, 2019 8:36 pmby MickYork
Yup, you've got it
Re: Work out CC
Posted:
Sun Jun 09, 2019 8:41 pmby Hughieboy
Brilliant, thanks!
Re: Work out CC
Posted:
Sun Jun 09, 2019 10:23 pmby dscscotty
try this-0.785 x bore x bore x stroke so for gt 186 with 60mm stroked crankshaft- 0.785 x 64 x 64 x 60 = 192.9cc
Re: Work out CC
Posted:
Mon Jun 10, 2019 11:17 pmby Feersum Injun
^^^ this ^^^