I just ordered an E series slip-on. I was wondering what jetting most people were running with stock motor and K&N filter. No mods to the airbox. FMF says to run the stock pilot and 138 main with their megamaxII. So I thought that should be a good place to start with the E series. And also, how does everyone like their E series on their 300ex's? I do alot of trail riding and hillclimbing. I live in Kentucky, just to let you know the climate.

 

I am running a 130 main on my wife's and a 250x cam and a 2" hole in the airbox lid and running 6 discs on the WB E Series. Its a little loud, but it runs great.

 

I just got mine put on, and I agree that it is loud! I tried removing some disc's and it didn't seem to make much difference on how loud it was. I haven't done any jetting as of yet. I'm gonna put it on a dyno this week and see what works best. I'll post the results. Thanks for the reply, I hoped to get a few oppinions but only got the one.

 

man in that pict on you signiture, you must have bottomed out.

 

Whatever you do, don't use the kind of jets you make parts for. They are way, way too big...

 

I was planning on using a CFM or T700 jet engine, do you think that is too big? (Just to explain this post, Bash and myself work for a jet engine manufacturer)