Fast_quad_03 Posted July 30, 2013 Report Share Posted July 30, 2013 I recently built a 4 mil motor, im very happy with it, but am wondering whats left to do to improve performance. 4mil long rod crank hjr dune port Pro circuit pipes (have t5s and cpis) pro design filter in open, drilled airbox 30okos vf2 reeds, have vf3s wiseco pistons +5 timing Lockup clutch 21cc domes Bike is a all around trail play bike. Just dont know what else to do? Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted July 30, 2013 Report Share Posted July 30, 2013 Based on what you have, those CPI will wake it up noticeably. Quote Link to comment Share on other sites More sharing options...
cciao Posted July 30, 2013 Report Share Posted July 30, 2013 Buy a 2nd banshee , choices choices???? I'm building a bike like yours and I'm going back and forth on a 4 mil mx port or a 4 mil dun port. I ride mostly trails , fields , seasonal roads . I was wondering is your dune port too much for the trails. I just don't want to do a mx port and wish it was faster, then again I hope it's not to crazy for the trails. Not to hyjack your post. Just need good info. Quote Link to comment Share on other sites More sharing options...
Fast_quad_03 Posted July 30, 2013 Author Report Share Posted July 30, 2013 Whats the difference between hjr and k&t port work? Im going to run the cpis i think, i just liked the pro circuits bottom end performance. Would changing coils, intakes, filters, etc give me any more hp? Quote Link to comment Share on other sites More sharing options...
Fast_quad_03 Posted July 30, 2013 Author Report Share Posted July 30, 2013 No the dune port is about perfect. I ride pretty much exactly the conditions you do. I do have a second banshee too haha Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted July 30, 2013 Report Share Posted July 30, 2013 Minimal at best. Run the CPI. Quote Link to comment Share on other sites More sharing options...
possum Posted July 30, 2013 Report Share Posted July 30, 2013 Whats the difference between hjr and k&t port work? Im going to run the cpis i think, i just liked the pro circuits bottom end performance. Would changing coils, intakes, filters, etc give me any more hp? Knt has years of hands on dyno tuning and racing and records Hjr none of the above, but can port a nice play bike. Your choice will be based on what you want and how much money you got. Quote Link to comment Share on other sites More sharing options...
Fast_quad_03 Posted July 30, 2013 Author Report Share Posted July 30, 2013 I put my cpis on last night and am going to work on jetting it today. as far as switching carbs. what is the difference between the okos and 28pwks? when I bought the bike they were already on it with a set of pods. I didn't like how wet they were getting while riding so I went to a pro design pro flow filter in an open airbox with tons of 1" holes drilled in it. as far as upgrading to 28s. I didn't think there would be any sort of performance gain. please correct me if im wrong though. suspension is already set up pretty well. got +2+1 a arms, works dual rates, +2 steering stem anti vibration, renthal fat bars, +4 lsr axle. Quote Link to comment Share on other sites More sharing options...
Fast_quad_03 Posted July 30, 2013 Author Report Share Posted July 30, 2013 i thought i wanted smaller carbs on a trail bike? i don't want to lose and more bottom end than i have to. Quote Link to comment Share on other sites More sharing options...
cciao Posted July 30, 2013 Report Share Posted July 30, 2013 Lets see a pic of this bike. Quote Link to comment Share on other sites More sharing options...
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