cpi big bore vs small bore

[jay793]

Just woundering if I am bored to 68mm what type of pipes should I run, big bore or small? also what cc would this put me at

Also whats up with the flang size, do they have big bore in small flang?

Edited October 24, 2007 by jay793

[91banshee]

Just woundering if I am bored to 68mm what type of pipes should I run, big bore or small? also what cc would this put me at

do you have a stock stroke ? i belive 68 bore stock stroke is 392 cc , big bore pipes are for 440cc or larger . what pipes to run depends on what your riding style is and your motor mods .

[jay793]

riding will be sand dunes mostly and running up the hill, as far as mods it has aggresive dune port, 35pwk airstrikers, k&n clamp ons, timming plate advanced, cool head with 17cc big bore domes, and some other stuff, running on 110 fuel

[91banshee]

you need small bore small flange , its hard to go wrong with cpi or shearer i love both pipes

[jay793]

thanks for your help now to find them at a good price thats the challenge

Edited October 24, 2007 by jay793

[91banshee]

i saw some cpi on ebay really nice ones for 350 to 400 06banshee on here has a really nice show chrome shearers for i think for 500

[dajogejr]

Personally...I'd go with 19cc domes and give it more timing...

With that much compression, the motor will be fighting itself in higher RPMs, especially with a larger bore piston.