number of discs to use with e-series

[wiley400ex]

Hey i just got the whitebrothers e-series slip on. I am not sure how many discs i should use with it, and what the jetting should be with them. everything on the bike is stock, except for the slip on, and a k&n air filter. if anyone can help me out on the number of discs to use that would be great, thanks.

[BIGRED400]

I see alot people run around 12, If you want more bottom end less than that.......More disc for top end , Less disc for bottom end ,I am running 18 on my 416 but it has a few mods.it is a fully tuneable exhaust , you just have to play with it for you want:) probably would help it was rejetted now, you have more air going thru your motor now.;)

[markk]

running 12 now and seems to run great but i have a full system

if your not running your spart arrester u dont need to really run any of the disks i think

[BIGRED400]

The way an E-Series is setup is to use the spark arrestor, it creates a pulse back to the headpipe and the disc's create a vacuum to suck it out of the headpipe, you need a certain amount of back pressure believe it or not .:)

[zephead400ex]

I am running a Pro Meg system (I know I don't have the motor mods to get the full use out of the pipe but it still runs well). I am running 10 disk, Uni filter, 42 pilot, 152 main, stock needle setting and my ex runs pretty good. I like the torque of 8 disk but does take away from the top end.

good luck

[sweet300ex]

12 seems perfect on my 300

when i took out my S/A i didnt like it, it took away bottom end