tyrel

good call on the VR signal, I will look at the datalogs. Never thought about that. With 2 reg/recs do I share the floated ground? right now I hae a single trail tech with main lead to battery, 1 to frame ground, 1 to floated ground, and one to the 150w output

I don't have much interest in doing a kit at this time, but I will offer my help / tuning files to whoever wants them. I have been doing some more tuning and the EFI system is pretty dialed in, clost to perfect AFR's all around. However I am hitting a bit of a wall, I am running C12 now and the bike pulls very strong until about 9500 rpm and then starts breaking up (12-1 AFR on the wideband). I may swap the stock head on and try that. I am also currently +4 on timing so I will also try going back to stock or even slightly retarding timing to increase overrev. Anybody know what cc dome would be roughly equivilant to stock? Next question is I have an electosport dual output stator, can someone point me in the direction on how to wire both outputs through a reg/rec? I currently just have the 150watt lead hooked up and its not quite enough. Thanks guys!, this is my first go at a banshee motor and appriciate any input

I have done some more tuning and am getting very close, however detonation is now very apparent on pump fuel. I have to short shift and keep the boost below 10 pounds. I will be running race fuel from here on out. I would like to do a pump gas low boost tune as well but for now I want to see how far I can take this set-up. The bike is quite ridable, boost comes on around 6-7k rpm under load. It is still running quite rich according to the wideband and seat of the pants. stay tuned........I will get this bike dialed in within a few weeks!

The clutch doesnt seem to mind the extra heat so far. I don't think I will be needing nitrous, although I am thinking about 4mm crank and cheetah cylinders to get more oomph down low. any thoughts as to a good set-up?

Thanks guys, it is definatly an interesting bike to ride haha. One of my reasons for posting here is that I couldnt find much info out there on succsesful efi or turbo conversions. the EFI set-up was cheaper that you would think, really so was the turbo......everything was used parts with the exception of the micro squirt. The stock VR pickup on the banshee works great with the microsquirt (although if you wwire the leads backwards the signal breaks up under load, dont ask haha). keep in mind I am running fuel only. It should work for ignition too but you may need a higher resolution sensor / trigger wheel. The throttle bodies came from a 04 gsxr 600, they work great in the bike but for a quad I would get the newer style gsxr 750 or r6 throttle bodies. with the differance being the bodies i used are not independant so i had to make a little curved adapter from the reeds, the late throttle bodies split in 4. IAT, MAP, and coolant temp sensor are just gm parts the turbo is from a chevy sprint with a tiny greylor oil pump that pulls oil from the drain plug and dumps back in the oil fill! obviously there is a bit of fab work to make it all work but it should be alot easier to package in a quad!

So I have just about finished my turbo efi banshee motor, but it is in a motorcyle chassis. she is pretty much done, runs great but still needs a bit of tuning. I used the microsquirt system which worked great (using as fuel only and tapping the stock vr pick up). this thing pulls like a frieght train when on boost (currently running about 12psi on pump gas). It has been difficult to find any info on guys doing this stuff so I will post up the tune when its 100%!!! current specs and pics. stock bore/stroke 350 welded crank wossner pistons vf4 reeds mild porting custom expansion chambers 21cc domes, cool head rbh32 turbocharger 38mm throttle bodies 320cc injectors microsquirt efi controller video of the first ride on efi (pipe blows off the head at the end 12psi boost) I have a build thread on Chop cult if anyone wants to see the start to finish!, http://www.chopcult.com/forum/showthread.php?t=34942