Carbed 2 stroke turbo guy's !!!

[Spaarky]

Haha! Nah, just ditch it and throw some carbs at it!

Considered doing that to a pro. The EFI is much better these days. It just seems the knobs on my dash are still more dependable than a controller. It seems like there is a new thread everyday with someone chasin demons.

 

[Wrenchmaster]

Nice setup in the picture for sure, thanks for posting. I saw a 780 ski-doo triple on page 2 of this thread, couple pics of the collector design, I'll likely make something similar, since the turbo will probably have to be mounted below the end of the pipes, it'll have 90's into the turbine. It'll be tight with the triple pipes, but I think there's room.

 

[brycter]

Other thing you can do is build the collector right on the turbo, then take smaller pipes and stuff the turbo and a little bit of the pipes with then. It will make it look a gatlin gun. This will drop the pulses deeper into the turbo. Then watch out! Triples make good power....

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[Wrenchmaster]

Here's the pic from Mn Turbo on page 2, I think I'd have to build something similar.

So the 3 pipes forming the collector would be welded to the flange bolted to the turbo then? It looks like this one's built this way.

 

[Ryanlilly]

That's similar to how I've seen them done before.

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[Wrenchmaster]

Here's a shot of the pipes on my sled, you can see how the one expansion chamber ends a lot further back than the other 2, don't know how critical it is to have them all the same length or not, but if the other 2 used a 90, and curled around (hope you know what I mean lol) they would be close.

 

[Wrenchmaster]

Here's a couple pictures of triple collectors I got from a guy in Michigan. He's built a bunch of turbo triples

 

[Ryanlilly]

I'd just extend that short pipe. The pressure should be the same.

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[Wrenchmaster]

Yeah, after thinking about it, I don't see what difference it will make. From what I can tell, the turbo needs to be close to the expansion chambers to minimize heat loss more than anything. It'll be interesting building the collector and making room for the charge tube when I start the build.

 

[vwsprite]

i agree that the turbo has to be as close the header as possible, but you might have to curl the farthest back pipe end forward also, essentially putting the collector under middle pipe and making the other two come to it, then your turbo exhaust would point forward, your charge tube would probably end up coming up through the curl of the rear most pipe tubing, does this make sense? i'm more of a drawing kind of guy then descibtions

 

[Wrenchmaster]

Yes, I think I know what you mean. I've been thinking the same thing, it should all fit if done right, will look like a plate of spaghetti when it's done lol. I'll probably buy some of the prebent tube and fab up the collector once I get the turbo in place. Since the pipes will have to be held on with springs (instead of welding the flange on like a single pipe) I'll have to mount the turbo somehow too.

 

[vwsprite]

idle set

did a bunch of changes this year, so i'm looking to figure out my jetting,
question is: without turbo hooked up (pressure pipe not installed) i set my idle so it's just about right, not too rich, consistant 1500rpm. when i install pipe idle rpm jumps up a bit and i'm rich, backing out on the thumb screw actually makes it rev more, screwing it in lowers rpm! am i having some of incoming air at idle being forced through the idle circuit and it's relieved with the slide open a bit? should i install a softer spring in the bov to release as much air as possible at idle?
800 big block w/900 engine-tech kit
55 pilots, seem hugh should i try smaller
145 starter jets
420 mains
1 1/2 turns on idle screws
2 turns on air screws
aerocharger 53

 

[Spaarky]

Decided to put my old girl up for sale. Its time for a new project in the shop.

Twister built the turbo set up. If you know his sleds they rip.

See it here:
http://www.snowest.com/forum/showthread.php?p=3598462#post3598462

 

[mattymac]

Heres how NOT to do a triple turbo 2 stroke, or any two stroke for that matter!!!!


http://www.youtube.com/watch?v=CjFOOG1WYws

 

[vwsprite]

yup that video has been up for awhile, the turbo is not even spinning, that is why the triples have to go to a collector before the turbo, so that all three exhaust pulses hit the vanes

 

[mattymac]

yup that video has been up for awhile, the turbo is not even spinning, that is why the triples have to go to a collector before the turbo, so that all three exhaust pulses hit the vanes

Not to mention 2 strokes run a bit better with expansion chambers! LMAO!!!!


Some peoples kids!

 

[Wrenchmaster]

Does anyone know if the old Turbonetics single ball bearing design is any good? I see the TO4's for sale quite often, just wondering what their like.

 

[lunnex]

need some direction

Hi, I'm new to the forum. I have an old 94 vmax 600. I have purchased a aerocharger kit which is supposedly a bolt on. It has a Hobbs switch for the electric pump. My question is how does this get plumbed in with the existing pulse. Or do I just delete the pulse and premix?

 

[Wrenchmaster]

I haven't installed one, but have discussed a bit. There are check valves in your stock pulse fuel pump, so my understanding is the electric T's in downstream of your stock fuel pump, when the hobbs switch see's boost, the electric takes over. Back several pages on this thread, Gus talks a bit about that setup. It's actually more simple to convert to an all electric setup and run a rising rate press reg. as your kit should already have and just take the old pulse pump out. There was a really good turbo thread on HCS but looks like it's gone now, Phil with Patriotic innovations has used the Hobbs switch setup on some of his builds. Shouldn't affect weather you mix gas or not if you run the stock oil injection pump.

 

[nelsonhouse]

Redhead turbo mm700

https://youtu.be/kcZRVm0Y59w