trinity 400cc help

[badbanshee1]

Hey wussup guys i recently bought a banshee with a trinity 400cc kit installed i was wondering if i were to add a 4mil stroker crank what would my cc's be after that. Im tryna go faster lol or should i buy a whole new setup like a 421 or 472.

[So Cal Suspension]

Hey wussup guys i recently bought a banshee with a trinity 400cc kit installed i was wondering if i were to add a 4mil stroker crank what would my cc's be after that. Im tryna go faster lol or should i buy a whole new setup like a 421 or 472.

Trinity Racing is a sponsor on here. Give Jaymes, or one of the other guys a call, and they can lead you in the best direction with that particular motor.

[badbanshee1]

Well i planned on calling trinity but i figured i would stop through here first to get some opinions

[springer]

sometimes a 400 gets thrown around when really its a 392. if thats the case, if you went to a 4 mil crank, it would simply be a 421.

[locogato11283]

Remember, you can't just throw a 4mm crank in there and go ride. It needs to be ported for the extra stroke.

[RadarRacing]

Trinity used to call a 68mm bore / stock stroke a "400" kit. They even had some of them that were cheetahs with powervavles. Those cyls are high HP setups and they are designed for each particular stroke and usually stroke shouldn't be changed on them. I don't know what type of riding/racing you do but there's no reason that a 392 can't be 900-100HP if its not now. Even with inframe pipes and small carbs on gas they can be 80hp.

[badbanshee1]

I do 60% trails 40% drag (for fun nothing serious). And yes when i bought the bike he said it was a 400 cheetah trinity kit with powervalves and he showed me the powervalves and a couple other things also but i dont know if its the trinity kit that you are refering to.