rhuebner Posted April 28, 2007 Report Share Posted April 28, 2007 What is the differance between regular and big bore CPI pipes? Which ones do I need? I have: -68mm Cheetah cub -4mil hot rod crank -35mm PWK Airstriker carbs on 109 race gas -+7 degree timing -Hemi head with 20cc domes Quote Link to comment Share on other sites More sharing options...
06BaNsHeE Posted April 28, 2007 Report Share Posted April 28, 2007 I would go SB.Why not try some shearers?They pull harder on top and you can get them for 430.Thats how much I paid for a set.Then I sold them to a friend to buy some from my builder who can get me custom silencers Quote Link to comment Share on other sites More sharing options...
shanYE west Posted April 28, 2007 Report Share Posted April 28, 2007 I'm not 100% sure but I think the difference is the size of the stinger section. Big bores use bigger stinger tubes. Most will say use small bore pipes up to 450cc or somthing like that. With your mods I would suggest small bore. Quote Link to comment Share on other sites More sharing options...
rhuebner Posted April 28, 2007 Author Report Share Posted April 28, 2007 Thanks fellas, and I will also look into Shearers. Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted April 30, 2007 Report Share Posted April 30, 2007 id say small bore and id run shearers over cpi...but if you can hold out a few theres a new pipe coming out that runs well on the cub motors. ive tested them myself and they ran well.. Quote Link to comment Share on other sites More sharing options...
rhuebner Posted April 30, 2007 Author Report Share Posted April 30, 2007 id say small bore and id run shearers over cpi...but if you can hold out a few theres a new pipe coming out that runs well on the cub motors. ive tested them myself and they ran well.. What pipe is this and when does it come out? Quote Link to comment Share on other sites More sharing options...
Justintoxicated Posted May 2, 2007 Report Share Posted May 2, 2007 (edited) Hmm I'd go big bore so your motor runs cooler, but you should be ok with either set on that bike. I'm running Big Bores on my stock Cylinder banshee and it runs fine, although I htink small borres would run better. If your more concerned with Peak HP then shearers for sure. Shearers are not for everyone...They do make more peak HP but it comes on too late for me. I hate having to rev the bike to the moon to get it going, Unless I'm dragging, then of course it does not matter. I tried them but decided on CPI, the power is more like the Fattys but it also comes on at higher RPM's, not as painful as Shearers though. I'm interested in this new pipe as well. it better not be ROCKETS. Edited May 2, 2007 by Justintoxicated Quote Link to comment Share on other sites More sharing options...
rhuebner Posted May 2, 2007 Author Report Share Posted May 2, 2007 Hmm I'd go big bore so your motor runs cooler, but you should be ok with either set on that bike. I'm running Big Bores on my stock Cylinder banshee and it runs fine, although I htink small borres would run better. If your more concerned with Peak HP then shearers for sure. Shearers are not for everyone...They do make more peak HP but it comes on too late for me. I hate having to rev the bike to the moon to get it going, Unless I'm dragging, then of course it does not matter. I tried them but decided on CPI, the power is more like the Fattys but it also comes on at higher RPM's, not as painful as Shearers though. I'm interested in this new pipe as well. it better not be ROCKETS. Yeah I'm kind of leaning towards Shearers now. I have my T6 Toomeys on ebay and the bid is up to $510 so I should break even with the trade. Quote Link to comment Share on other sites More sharing options...
Justintoxicated Posted May 2, 2007 Report Share Posted May 2, 2007 (edited) Yeah I'm kind of leaning towards Shearers now. I have my T6 Toomeys on ebay and the bid is up to $510 so I should break even with the trade. They are an awesome top end inframe drag pipe, just hated riding with the in the dunes, as well as others I ride with that were looking to sell them. ( I think both people are just going to end up selling their Banshees though). They really bring out the worst in the bashee, they hit fierce and keep pulling I know this forum has a bonor for them so just make sure they are what your looking for. Might want a +6 Swingarm with your setup. Edited May 2, 2007 by Justintoxicated Quote Link to comment Share on other sites More sharing options...
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