Jets

[jlennon79]

I'm wanting to put the 392cc kit on I have stock carbs with the toomey 270 jets will I be able to run with those or need to get bigger jets?

[bluebanshee98]

I'm wanting to put the 392cc kit on I have stock carbs with the toomey 270 jets will I be able to run with those or need to get bigger jets?

if you really want some power i would go the 4 mil route and get it ported. if your low on cash just get a port job

[jlennon79]

Ya my sleeves are bored to the max so I gotta go bigger I don't wanna resleeve and lose power! I'd like to get the port job done! If I get it done on that 392 kit with stock carbs will I need jets bigger than 270?

[Dahl87banshee]

Boring out your cylinder doesn't give you power. Resleave and have it ported

[bluebanshee98]

Ya my sleeves are bored to the max so I gotta go bigger I don't wanna resleeve and lose power! I'd like to get the port job done! If I get it done on that 392 kit with stock carbs will I need jets bigger than 270?

i was running 280s in the summer with stock cylinders, fmf pipes/silencers, k&n air filter in airbox with no lid and no port job work at 1000ft above sea level. winter i bumped it up too 300's. im currently running 330's with a full dune port and a 4 mil crank, +4 timing. i need to rejet much higher like in the 370s due to the motor work. porting and having a bigger crank is the way to get the most h.p out of the banshee. of course with a bigger crank you need to mil the head or get a coolhead with domes to match. any sponsors on this site will get you in the right direction.

[jlennon79]

Ok thanks guys

[bluebanshee98]

woops i gotta fix my last post. i actually had to drop down to 320's and put my lid back on my air box. now it runs nice and clean. make sure to plug chop after all your work is done