The V-force 2 reeds are a better design then the V-force 3. The reeds have to be hand ported to achieve good flow numbers. A customer of mine wants a drag port 240cc kit with a +3mm crank.
Displacement can be figured out a few ways.
The stock bore is 66mm with a 57mm crank
So let’s do the math
Bore squared times the stroke times .7854
(6.6)(6.6)(5.7)(.7854)=195cc=stock displacement
Big bore kit with +3mm crank = 7.2*7.2*6.0*.7854=244.29cc
If you desire big power number you must hand port the V-force 3 reeds
When I ported the reeds for him; we gained 10hp from the un-ported reeds
Displacement can be figured out a few ways.
The stock bore is 66mm with a 57mm crank
So let’s do the math
Bore squared times the stroke times .7854
(6.6)(6.6)(5.7)(.7854)=195cc=stock displacement
Big bore kit with +3mm crank = 7.2*7.2*6.0*.7854=244.29cc
If you desire big power number you must hand port the V-force 3 reeds
When I ported the reeds for him; we gained 10hp from the un-ported reeds