johstoncounty banshee Posted May 17, 2010 Author Report Share Posted May 17, 2010 keep the updates coming it'd be nice too see one of these actually make it. The fuel injection is working great,we are haveing a hard time makeing boost. the map reading is not to good but we are makeing it work.At 100 you should start makeing boost by the map reading but at idle its reading around 91 to 93 if it was below that it would be alot easier to get a base tune. but now we have 1 that is real close.My boost makeing problem we are still working on.I have the 2' exhaust coming out the hot side so i have been playing with makeing the hole smaller which seems to be helping alot.Also i wrapped my whole exhaust with the header wrap,which has also helped.Any body else have any opinions let me know. Quote Link to comment Share on other sites More sharing options...
lowriderb Posted May 17, 2010 Report Share Posted May 17, 2010 im just guessing but it maybe because of the dual head pipes. ill look more into it but for some reason i remember being told it slowed the velocity down going to the turbo. what size is the tubing going to the turbo from the head pipes also? Quote Link to comment Share on other sites More sharing options...
johstoncounty banshee Posted May 18, 2010 Author Report Share Posted May 18, 2010 im just guessing but it maybe because of the dual head pipes. ill look more into it but for some reason i remember being told it slowed the velocity down going to the turbo. what size is the tubing going to the turbo from the head pipes also? the pipe is 1 1/2 y'd into 1 Quote Link to comment Share on other sites More sharing options...
camatv Posted May 18, 2010 Report Share Posted May 18, 2010 i think i rember saying you needed a BOX on the intakes.... the bike probably wont make ANY boost till upper rpm's OR the waste gate is open or a few other things.. Quote Link to comment Share on other sites More sharing options...
johstoncounty banshee Posted May 18, 2010 Author Report Share Posted May 18, 2010 The pipes them selfs are pro circuit pipes the 1 1/2 starts at the end of the pipe. the turbo is around a t18. Quote Link to comment Share on other sites More sharing options...
lowriderb Posted May 18, 2010 Report Share Posted May 18, 2010 what did the turbo come from? any other information on it like the a/r for it and all? you may also need to fab up a defuser box for it so it will flow evenly into the intakes. Quote Link to comment Share on other sites More sharing options...
camatv Posted May 18, 2010 Report Share Posted May 18, 2010 it needs a plenum. the banshee will spin the turbo fine it needs somewhere to push the air... you cannot build boost unless its MOVING someplace.. you trying to run it on the dyno? the way its set up it will be very topendish and very peakky because it wont make any power untill way up in the rpm range and after a few seconds of being there.. your going to need a plenum, and possibly an intake blow off valve and possibly a boost controller to help it create boost at lower rpm's// you can hear the lag contorller when he takes off it pops its dumping fuel in the pipe and explodes creating a lot of pressure in the pipe's themselves boosts the turbo wayyy up bet its launching aiwht abot 10 psi at the get go. also being a CVT drive it can just maintain a constant rpm range and let the clutch do the work.. Quote Link to comment Share on other sites More sharing options...
camatv Posted May 18, 2010 Report Share Posted May 18, 2010 lil more evident in this one.. thats if you actually want it to launch like it should... other wise your going to have to deal with a lil lag.. Quote Link to comment Share on other sites More sharing options...
camatv Posted May 18, 2010 Report Share Posted May 18, 2010 ye ha! Quote Link to comment Share on other sites More sharing options...
johstoncounty banshee Posted May 19, 2010 Author Report Share Posted May 19, 2010 Have you thought about changing the internals of the tubro? Maybe the banshee isn't pushing enough exhuast to make the turbo work correctly. already thought about that it would be easier to just get another turbo probly. Quote Link to comment Share on other sites More sharing options...
johstoncounty banshee Posted May 19, 2010 Author Report Share Posted May 19, 2010 also i have it on alcohol now 4got to mention that. Quote Link to comment Share on other sites More sharing options...
moneybags Posted May 19, 2010 Report Share Posted May 19, 2010 Some pics of a turbo banshee we seen at the track the other night. It only made one sucessful pass ( out of 3) but it halled ass on that pass. It is a stock cylinder, stock port, stock carbs, etc etc on nitros... Maby these pics will beable to help you out some how. Quote Link to comment Share on other sites More sharing options...
johstoncounty banshee Posted May 21, 2010 Author Report Share Posted May 21, 2010 today i was messing around with my banshee. if i took and went to 4 gear real slow and nailed it she come to life it was like you kicked it in the ass lol. nobody has any more opinions. Quote Link to comment Share on other sites More sharing options...
lowriderb Posted May 22, 2010 Report Share Posted May 22, 2010 that was with the motor already tac'd up though, try it from a stop like what cam was saying. the plenum/air box what ever you want to call it will give the air somewhere to compress to till the motor can take it in and it will give your motor something to pull from for a second till the turbo spools up. Quote Link to comment Share on other sites More sharing options...
camatv Posted May 23, 2010 Report Share Posted May 23, 2010 those pics of the track bike look like an a+s or similar turbo set up. its using a PLENUM and the NOS is to ge the bike out of the hole so the turbo will spool. its such an old outdated turbo design/ set up. if someone actually used the modern snomobile tech on one they would be insane. ( if it would stay together)... you really have to know how to run one of those turbo set up's like that they are very very picky.. but dang they will acclerate something fierce when it does work.. the biggest issue is getting it to boost at the line and stay in tune... Quote Link to comment Share on other sites More sharing options...
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