doug Posted December 21, 2012 Report Share Posted December 21, 2012 Hi Guys, I've got the new build setup: 421 Cub 4mm stroker 24cc Domes 39mm Keihin Carbs Shearer sb in-frame pipes/silencers vforce 3 reeds k&n filters elevation - 374ft /114meters Any suggestions on main, pilot & needle settings? Thanks. Quote Link to comment Share on other sites More sharing options...
vulvafan537240 Posted December 22, 2012 Report Share Posted December 22, 2012 same setup here only with vf2's and 35 pwk's and i run 48 pilot, CEL needle on the middle clip and 155 mains. yours should be close to that. is yours ported? if so, how aggressive? cleanup, full drag etc. Quote Link to comment Share on other sites More sharing options...
doug Posted December 23, 2012 Author Report Share Posted December 23, 2012 just a clean up port... Quote Link to comment Share on other sites More sharing options...
vulvafan537240 Posted December 23, 2012 Report Share Posted December 23, 2012 My previous post should be in the ballpark then. Maybe somebody else can chime in that has 39's. Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted December 23, 2012 Report Share Posted December 23, 2012 160-162 main 48 pilot Needle clip in the middle Air screw .5-2.5 turns out Quote Link to comment Share on other sites More sharing options...
bansheeboy44 Posted December 25, 2012 Report Share Posted December 25, 2012 I have a drag port 421 with 39's and everything else the same and I am running 55 pilots and 185 mains at Glamis Quote Link to comment Share on other sites More sharing options...
bansheeboy44 Posted December 25, 2012 Report Share Posted December 25, 2012 21cc domes on mine Quote Link to comment Share on other sites More sharing options...
Oregon dunner Posted December 27, 2012 Report Share Posted December 27, 2012 I have a 4mill cub with a agressive port by HJR, 19cc domes by Redline. I am running VF3 and 35pwk. My current jetting at Sea level is 152 on the main, Cel needle on the 4th and a 45 pilot. I had it tuned on the dyno at redline and it runs hard. 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.