2-stroke twin snowmobile with EFI

[sheeblast]

I am looking for any snowmobile that has a 2-stroke twin cylinder engine with EFI.
Would like it to use a TPS and O2 sensor. If it using more sensors to control the EFI system, that is great.
Let me know what you have. sled can be wreck, running or not.
Just need the electronics and intake system to work.
Thanks

 

[Awk08]

ah oh, i smell a sled motor drag build ????

 

[sheeblast]

nope. incorrect

 

[sicivicdude]

swap EFI onto the banshee.

The plan is sound but you're going to run into one big snag. The pickup for the crankshaft position sensor. You may have to make something to work. The timing location may be out of sinc with the ignition pickup (you might luck up and get it in time with the ignition pickup where you could use the ignition trigger as the crankshaft sensor) but if not, the case is going to have to modified to allow you to install a new pickup at a different timing location OR worst case scenario, the timing pickup is incompatible and you will have to make a custom stator cover and custom pickup to mount onto the outside of the flywheel. Nothing that can't be overcome with a little ingenuity, but a possible headache

 

[sheeblast]

reason i want a complete sled. to make sure i have everything i need and compare things.

i plan on swapping the wiring harness and stator from the sled.

 

[sicivicdude]

You'll almost have to have the whole thing (wrecked would save you money but if something was broken off of the engine it could also be a useless hulk) in good shape to figure out what you need and then go from there.

I would love to put EFI on the blaster, a microsquirt would be THAT difficult to configure but power for the fuel pump would be an issue. At least you have a little head room with that on the banshee, you can get a 200W stator for it the blaster is maxed out at 75 W.

 

[sheeblast]

fuel pumps on a banshee is very common for the drag quads, so that isn't a problem.
i plan on using a dynojet powercommander to control the system.
and there is a 250watt stator for a banshee, but i plan on using the stator from the sled and make it fit onto the banshee.

 

[sicivicdude]

Ok, you've run afoul on some major modifications there... If the flywheel taper isn't the same or the stator is larger than the left side case housing you've got trouble.

You'd be better off taking the throttle bodies and electronics off the sled and making them fit the intake tract of the banshee, putting a high output stator and rectifier/ regulator for 12VDC and running the brain off the sled on your quad. Then the only really bad headache is the crankshaft position sensor.

Once you have the system up and running, then change the stock computer over to the powercommander and tune it in.

The fuel pumps on a drag quad pump a lot of fuel very fast for a very short period of time. Unless you plan on drag racing exclusively, you'll need to devise a new plan because running a fuel pump for more than a few minutes will drain a small battery.

 

[sheeblast]

i dont think the stator will be a problem, because i plan on using the banshee flywheel. just have to make sure the stator fits inside the flywheel.
and i know someone that will make me a custom stator cover if needed.
i want to use the coil from the sled, because the banshee has the "wasted" spark setup out. i am hoping the sled doesn't have this set up.

 

[sicivicdude]

It may not just be a matter of fitting inside the flywheel, some stators are wound with more poles than others. If you have the wrong number of magnetic "poles" inside the flywheel you'll be putting out a different voltage than the regulator is expecting to see.

Also, the stator to flywheel spacing is critical to get the power out of it. If the stator from the sled is too small your stator will be very weak.

I don't think the wasted spark is enough of a problem to worry about trying to make a sled stator work inside a banshee flywheel. You're going to run into much larger problems than the wasted spark is worth chasing.