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Posted

Ok so im redoing a bunch of things on my banshee... Mostly im just doing cosmetics but ive got that itch for a little more power but im not sure what to do next. My current set up is a trinity racing cheetah 400 top end with power valves and custom porting. It has a cool head. I have 250r style boyson v force 3 reeds with spacers and keihn 38mm flat slide carbs with a cfm air box that uses dual filters. I also am running 4 degree advanced timing plate with trinity stage 4 pipes and silencers. sprockets are a 16t front and 40t rear... How could i get a little more juice out of it without going over the top? It was recently rebuilt so i dont feel like tearing appart the engine again so the +4mm long rod is out.

Posted

alright that might be a possibility but not alky as i mainly ride trail and mild racing... the alky would be to much $$$$$ to be practical... basically i need to look at displacement then

Posted

Ok easiest way to get displacement is to do the plus 4mm stroker crank... would i need to change anything else in order to run a 4 mm stroker or is it just a bolt in install?

Posted

Ok so im redoing a bunch of things on my banshee... Mostly im just doing cosmetics but ive got that itch for a little more power but im not sure what to do next. My current set up is a trinity racing cheetah 400 top end with power valves and custom porting. It has a cool head. I have 250r style boyson v force 3 reeds with spacers and keihn 38mm flat slide carbs with a cfm air box that uses dual filters. I also am running 4 degree advanced timing plate with trinity stage 4 pipes and silencers. sprockets are a 16t front and 40t rear... How could i get a little more juice out of it without going over the top? It was recently rebuilt so i dont feel like tearing appart the engine again so the +4mm long rod is out.

 

 

2 strokes dont have valves...what are you talking about? boost bottle? :confused:

Posted

Ok so im redoing a bunch of things on my banshee... Mostly im just doing cosmetics but ive got that itch for a little more power but im not sure what to do next. My current set up is a trinity racing cheetah 400 top end with power valves and custom porting. It has a cool head. I have 250r style boyson v force 3 reeds with spacers and keihn 38mm flat slide carbs with a cfm air box that uses dual filters. I also am running 4 degree advanced timing plate with trinity stage 4 pipes and silencers. sprockets are a 16t front and 40t rear... How could i get a little more juice out of it without going over the top? It was recently rebuilt so i dont feel like tearing appart the engine again so the +4mm long rod is out.

 

 

 

also kick out those boysen reeds and get some vforce3reeds alot more acceleration...better powercurve ability

Posted

2 strokes dont have valves...what are you talking about? boost bottle? :confused:

 

Some aftermarket cylinders have powervalves that vary the port height, it is completely different than the valves in a 4 stroke.

 

Honestly if you need more power I don't see much you can do that isn't already done with those cylinders, aside from adding a stroker crank.

 

What size domes are you running?

Posted

your looking for more acceleration? or more top end? depending on the trails your ride a 16t up front it pretty tall.....you could always drop it down to stock (14/41) and see if you like that better.....it should give you a hell of alot more of a hard launch and hard pull feel as you will hit the powerband sooner....but you will notice you will be shifting slightly more often.

Posted

Well i like where it sits... it has a decent top end wih plenty of torque... ill prob end up doing the 4 mm stroker crank. As for the heads i beleive they r 19cc but im not sure

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