turbo

[fabiodriven]

just want to stress that i think tapping into engines oiling system could starve top end for oil

I disagree. I think the engine's oiling system would hold up just fine. The turbo isn't going to "take away" from the oil going to the top end. As long as everything is within tolerances then the entire oiling system should keep the correct pressure. If the entire oiling system is pressurized, there is no way that the turbo can "steal" oil pressure from the top end.

I wish I could find the threads I was looking for.

[trike savior]

oiling system is basically an engineered leak. oil gets forced out through tight tolerances, keeping pressure up. from my understanding of turbos the oil pocket of turbo around bearings is just that, a pocket filled with oil lubricating ball bearings. and a return line to keep oil moving. there is nothing to slow oil movement so the turbo is not an engineered leak but a volume and pressure robber. in a car with a giant oil pump this is no big deal but have you seen how tiny the oil pumps are in these 4 stroke bikes.
im no expert on turbos, this is just my deductive reasoning. from what i currently know and what i am seeing others do, like 250 you posted. and either way if doing 2 stroke you have no choice but to run separate oiling system unless its trike or dirt bike i guess you could use trans as your sump, still need a pump.

i'm not calling you a liar and if you can find any articles i would like to read it.

[RIDE-RED 250r]

The turbo on my friend's sled utilizes a self contained bath type oiling system. It's very basic, has pretty good capacity to deal with heat and works well. Just make sure and change the oil regularly. But remember how I said this was put on back in '93, this was the very early days of bolt-on turbos designed specifically for sleds. And truth be told with all the other customization he had to do to make it work, I would hardly call it "bolt-on" anyway. What he has isn't nearly as sophisticated as the turbo setup on a modern turbocharged sled like a Z-1 Turbo Arctic Cat with a full aftercooler and all. This turbo on the old Indy doesn't even run a cooler, it just pulls fresh air. It is installed in place of the silencer of the sled.

But Trike Savior, I really doubt plumbing oil supply to a turbo would starve the valvetrain of oil enough to say so. But that is just my instinct on the matter. Maybe if possible a turbo with a self contained oil system like my buddy's sled has would be the better way to go?? IDK... But it sure is fun to talk about!!

[rlgeorgejr]

Its possible they make small enough turbos thats the cheap part of it all whats going to cost you is that your going to have to but an electronic fuel injection and for those kits alone your looking at 1000 to 1500 just for that that is the main thing to worry about when turbo chargeing something they make the kits i cant remember who right off the bat thou ill find out and let you know

[ngunter2]

I posted a link further back!!! Its not half bad

[85drag250r]

If you want to find out what it takes to "turbo" a 2 stroke engine call Dan Hull @ A&S Racing. He has built a few turbo 2 strokes and has set ET records with his stuff