Turbo on a two stroke?

**LonesomeTriZ** · 04-11-2009, 03:52 AM

Just kicking around the idea. I have a chance to get my paws on some small turbos in need of being rebuilt. I was thinking it might be a good idea to install one on my big block build when I get home. But, boost is not always your friend and that is a one of a kind engine. I am not even sure if I could get it to work with an expansion chamber anyway

**SYKO** · 04-12-2009, 09:49 AM

ive seen banshees with them... how bout you send a turbo over for the NINJA-z?

**LonesomeTriZ** · 04-12-2009, 10:00 AM

I have seen the on Shees as well. I am just a little concerned about the engine I will be installing it on.

That poor, poor Tri-Z.

**SYKO** · 04-12-2009, 10:18 AM

oh quite your damn whinnin...your such a restore baby.... whaa whaa whaaaaa jsut for that im going to chop up another Z!! and put a HONDA MOTOR IN IT!! that way it will finaly run right!!

**LonesomeTriZ** · 04-13-2009, 02:26 AM

I would threaten to beat you with something wet and nasty, but you would like it too much.

**JohnR.** · 04-13-2009, 08:43 AM

The work better on the Banshees because they have two cylinders which makes the exhaust flow into the turbo more smooth. The "pulses" from a small single cylinder engine aren't the best way to run a turbo.

John

**LonesomeTriZ** · 04-13-2009, 08:51 AM

That is a good point.

**Yamada** · 04-13-2009, 08:54 AM

Originally Posted by JohnR.

The work better on the Banshees because they have two cylinders which makes the exhaust flow into the turbo more smooth. The "pulses" from a small single cylinder engine aren't the best way to run a turbo.

John

You just need a smaller turbo in this case. I've read about supercharging a car engine, the number of cylinder doesn't matter, it is the volume of air the engine pump that is important.

**LonesomeTriZ** · 04-13-2009, 08:58 AM

That is true as well. I planning on using a small one, like I said I do not want to blow this engine.

**JohnR.** · 04-13-2009, 06:29 PM

A turbo is different than a supercharger so its apples to oranges. I've been working with turbo auto/truck applications for over 10 years now so I know a good bit about them. You can put a smaller turbo on but it will still not work efficiently because the small, single cylinder engine pulses the exhaust wheel of the turbo rather than give it a smooth, constant flow of exhaust to spin it. Its not so much about the size of the engine as it is about it being a single cylinder that only fires once every 360 degrees. A two cylinder (Banshee) will fire twice as often which gives a smoother exhaust stream to feed the turbo. Besides, a very small turbo will be a very BIG restriction in your exhaust.

John

**Billy Golightly** · 04-13-2009, 06:57 PM

Louis I made a post in this forum several months ago when someone else was asking about turbos. Do a search for it and you'll find it. I got very serious about this for a while and bought a few books, specifically on turboing motorcycles and 2 strokes. It can be done, but its an AWFUL lot of work even with a sealed, self lubricating turbo. And a metric

ton of work if you have to use a normal oil pressurized style...

**LonesomeTriZ** · 04-14-2009, 02:43 AM

John, thanks for clarifing

Thanks, billy. I will look it up. From what I have leanred so far, I agree it si too much truoble and not enough reward. With all the 450 conversions and other recent monster biulds, I doubt I can make this engine competetive any more. I will just biuld a really nice strethed Z and enjoy it rather than race it.

**1upfront** · 04-14-2009, 08:44 PM

Here's a cool link http://forums.everything2stroke.com/...o-kit-pix.html

**LonesomeTriZ** · 04-15-2009, 01:59 AM

That is freaking cool.

**brapp** · 06-28-2009, 10:31 PM

carburation and keepng cranks eals and gaskets under pressure is the hardest issue

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Turbo on a two stroke?