volcrano Posted June 25, 2009 Report Posted June 25, 2009 i bought a set of cpi pipes.bottom is good as hell -mid takes a while to kick and the top wont pull the wheels!my t5s would eat these things!so-my plugs look like they have tar poured on them.people say u have to increase main with the cpis?is it bad if i have to lean it?i got 34mm mikunis 27.5 pilot,needle on 1st clip and 270 mains.i need to try like a 250 main with needle in mid maybe.my mods are in sig.anybody else have to lean after installing cpis?i heard these are retarded for mid and top.im not impressed-like i said my t5s would shit on these.any help would be swweeeet guys. Quote
mopar1rules Posted June 25, 2009 Report Posted June 25, 2009 are your cpi pipes the small bore (350cc) inframes? Quote
volcrano Posted June 25, 2009 Author Report Posted June 25, 2009 are your cpi pipes the small bore (350cc) inframes? yes they are.i acually have oil oozing out of my silencers! Quote
RagunCajun Posted June 29, 2009 Report Posted June 29, 2009 i think i went up just 1 main size when i went from t5's to cpi's. I ended up at a 320 or 330. Try a plug chop and see what it looks like. Quote
BoostedRex Posted June 30, 2009 Report Posted June 30, 2009 Are the pipes the only thing you changed? Quote
volcrano Posted July 2, 2009 Author Report Posted July 2, 2009 Are the pipes the only thing you changed? yes rex-i actually bought them from u like a few weeks ago.i love the sound and the bottom is way better than the t5s.im still tuning-i havent been able to do a wot 6th but i have ripped it hard till fourth and ran 4th out.pulled plug on strong side-i have had to go from 270 mains and i have 240 mains in now and the top is coming around-havent had it on the road tho to see if it pulls hard or poops out in higher gear.its crazy ive down-jetted 3 sizes so far and plug still black,but is starting to clean.with the 270s they were oil coated and the threads were also.im going tomorrow or friday to wot 6th on road to get my reading before i lean more.its definately getting better tho.the only poopy are is the mid.it takes longer to hit pipe-which might be the way cpis act anyway-but 1/4 throttle is choppy-tingy-just not a smooth delivery.any suggestions-240 mains and needle in middle with 27.5 pilots air screw out 2.they are t34 (older aftermarket mikunis). Quote
BoostedRex Posted July 2, 2009 Report Posted July 2, 2009 yes rex-i actually bought them from u like a few weeks ago.i love the sound and the bottom is way better than the t5s.im still tuning-i havent been able to do a wot 6th but i have ripped it hard till fourth and ran 4th out.pulled plug on strong side-i have had to go from 270 mains and i have 240 mains in now and the top is coming around-havent had it on the road tho to see if it pulls hard or poops out in higher gear.its crazy ive down-jetted 3 sizes so far and plug still black,but is starting to clean.with the 270s they were oil coated and the threads were also.im going tomorrow or friday to wot 6th on road to get my reading before i lean more.its definately getting better tho.the only poopy are is the mid.it takes longer to hit pipe-which might be the way cpis act anyway-but 1/4 throttle is choppy-tingy-just not a smooth delivery.any suggestions-240 mains and needle in middle with 27.5 pilots air screw out 2.they are t34 (older aftermarket mikunis). Give me a call sometime afternoon and see if I can't help you get it closer. (435)512-4471 AJ Just in case you lost my number Quote
Ieat4strokes Posted July 2, 2009 Report Posted July 2, 2009 well I hope I like mine.....Im about to swap my T5's for some OOF CPI's......but im jumping to a drag ported 4mill so im sure they will perform better than the 5's.... But your post confuses me, for a pipe that supposed to pull better/ flow better up top you shouldnt have to jet down.....especially on your mains.... Quote
volcrano Posted July 2, 2009 Author Report Posted July 2, 2009 well I hope I like mine.....Im about to swap my T5's for some OOF CPI's......but im jumping to a drag ported 4mill so im sure they will perform better than the 5's.... But your post confuses me, for a pipe that supposed to pull better/ flow better up top you shouldnt have to jet down.....especially on your mains.... im confused also thats y i started this post.i know everybody goes up in main with cpis.mine was sputtering up top.as i leaned it it got better and better.it might be good now besides the needle-i need to do a wot plug chop-but i know if its running better leaner and the plugs are black-leaner is the way.i have a dune/drag port for a 4mil myself.not sure if oofs are going help u or hurt u-but i hope u like em.i like mine-just needs a lil tweaking now.the funny part is people say cpis have no bottom-mine will pull tree stumps out. Quote
volcrano Posted July 2, 2009 Author Report Posted July 2, 2009 i bought a set of cpi pipes.bottom is good as hell -mid takes a while to kick and the top wont pull the wheels!my t5s would eat these things!so-my plugs look like they have tar poured on them.people say u have to increase main with the cpis?is it bad if i have to lean it?i got 34mm mikunis 27.5 pilot,needle on 1st clip and 270 mains.i need to try like a 250 main with needle in mid maybe.my mods are in sig.anybody else have to lean after installing cpis?i heard these are retarded for mid and top.im not impressed-like i said my t5s would shit on these.any help would be swweeeet guys. ok-after investigation-my 2 center studs underneath where the cases bolt together on the rear side of the bike have tranny oil on the nuts!could i be leaking tranny oil into crankcase and thats y my shit is so rich?the fucker is smoking like a train-gets better when warm but it smokes for a while.please dont tell me i gotta split this fucker again. Quote
AKheathen Posted July 3, 2009 Report Posted July 3, 2009 what does the smoke smell like? do a leakdown test. Quote
volcrano Posted July 3, 2009 Author Report Posted July 3, 2009 what does the smoke smell like? do a leakdown test. smoke is 2 stroke-it turns out the studs wet from bowl dripping and changing jets leaking thru the drain hole in case.thanks for all u guys input-im putting my t5s back on. Quote
beebs Posted July 3, 2009 Report Posted July 3, 2009 smoke is 2 stroke-it turns out the studs wet from bowl dripping and changing jets leaking thru the drain hole in case.thanks for all u guys input-im putting my t5s back on. [/quote I'm about to switch to CPI's also and ur situation dosent make sence. You should have to richen it up not lean it out. Hope nothing else is wrong. Let us know how you make out and if you find a issue. Quote
RagunCajun Posted July 5, 2009 Report Posted July 5, 2009 well I hope I like mine.....Im about to swap my T5's for some OOF CPI's......but im jumping to a drag ported 4mill so im sure they will perform better than the 5's.... is your porting adjusted or will be adjusted for CPI's? Quote
banshee35005 Posted July 10, 2009 Report Posted July 10, 2009 cpis should flow better and u should have to jet up maybe ur not getting enough air in try running with filters off carbs for a second maybe there dirty or u need bigger filters or id say something else has to be wrong or maybe it is the port job Quote
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