rawbansheepower Posted March 5, 2009 Report Share Posted March 5, 2009 okay me and a buddy r in the process of building a 4mill passion stroker with duneable override tranny and lockout and the whole works, the guy we bought the cylinders from was running 35pwk's and he had it dyno at 76hp, so i was wondering what carbs people were running for this setup and we got a pair of 38 keihin pwk's but we were wondering if thats going to be too much or not? any advice or input would help. i got 34mm mikuni's that im going to run for now but also have the 38's but wanna know a good setup or the best setup for this motor. thanks Quote Link to comment Share on other sites More sharing options...
zachass9 Posted March 5, 2009 Report Share Posted March 5, 2009 I run a 421 Cheetah built by Jim and I run 39 PWK's!! All the people that I have talked to about Jims motors say they love fuel, so that is why I went with the 39's!! Good luck with tht build!! Z Quote Link to comment Share on other sites More sharing options...
spike Posted March 5, 2009 Report Share Posted March 5, 2009 I have 33 pwk on mine and it runs nice and crisp from the bottom up, but its not a drag bike and for from setuped like one. if you plan on doing a full drag bike i'd go at least 35 and i can probbly handle more. just call jim and ask. It's not is first Rodeo! Quote Link to comment Share on other sites More sharing options...
rawbansheepower Posted March 5, 2009 Author Report Share Posted March 5, 2009 (edited) well my motor is the 370cc passion and this thing is hogged out, they exhaust ports r huge...anyways im going to run 34mm mikuni for now but i want the best carb for this motor so i can get the most out of this engine Edited March 5, 2009 by rawbansheepower Quote Link to comment Share on other sites More sharing options...
bansheefreak Posted March 5, 2009 Report Share Posted March 5, 2009 for drag you should be fine running the 39s.. Quote Link to comment Share on other sites More sharing options...
banshee332 Posted March 6, 2009 Report Share Posted March 6, 2009 (edited) Your 38pwks would work better then the smaller carbs, I had a passion 350 about 3-4 years ago and I ran 40mm lectrons on it Edited March 6, 2009 by banshee332 Quote Link to comment Share on other sites More sharing options...
ohiobanshee Posted March 7, 2009 Report Share Posted March 7, 2009 I am running 35's on my passion 4mill. Quote Link to comment Share on other sites More sharing options...
rawbansheepower Posted March 7, 2009 Author Report Share Posted March 7, 2009 Your 38pwks would work better then the smaller carbs, I had a passion 350 about 3-4 years ago and I ran 40mm lectrons on it now did you loose lot of bottom end or did you still have lot of power all the way down the track or dunes Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.