Weed whacker build
 

Turns out my dad got a new weed whacker because the old one was old, leaky, and didn't have all the new add ons, so he gave it to me. I thought about adding a turbocharger to it. It IS possible on a 2-cycle engine, although the turbine will see a lot of oily exhaust. Also, a different carburetor will need to be fitted for a blow through application, so that the bowl and feed will not get pressurized, and that the venturi will see more fuel for a proper a/f ratio. I have yet to figure out where to get the turbo. I will be constructing the manifold/tubing myself. These guys were able to do it: Two stroke engine with turbo

Anyways, here is how it looked... not too bad. The carb was really gummed up and the muffler was plugged.

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Teardown begins:

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Ported the exhaust port, as well as the intake a tad. I need to find a pressurized carburetor for a blow-through application, but in the meantime, I am just going to mess around with this one. I got all the dried 2-cycle oil out of the passageways with carb cleaner and compressed air.

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When I removed the emissions screw cover, I found there was no HI speed adjustment for the jet, just idle. Not the best of carburetors.

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Polished and cleaned the muffler, changed the spark arrest.

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The cylinder and piston had very minimal scoring which is surprising, so I just installed new rings and reassembled everything with (mostly) new gaskets. Here's how it looks now:

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And here is a video:



Still trying to figure out where to get a properly sized turbine and compressor. Maybe a Smart :giggle:

I can't believe you have a build thread for a weed whacker, lol.

This is the next video for me. '

Fuck it...

Mitsubishi TD01H or TD02H. Still way WAY to big, but its about the smallest thing you will get.Teh CHURBO!!!

Cummins diesel. You should not have a problem finding one at the junk yard.

Turbo won't work to well with a two stroke it'll just blow the mixture out the exhaust without significantly increasing the cylinder pressure. So you get a big increase in fuel consumption with almost no power increase.

I'll bet that Vespa is ear-splitting when it goes by.

Two-stroke turbo engines are pretty common in large diesels. The one I have seen first hand (425 HP in a military vehicle) was a Detroit V8 with a supercharger and a turbo in series.

Get a garrett gt12
TurboByGarrett.com - Catalog

Then add a trigger wheel, injector, and microsquirt.

I have seen a turbo charged 2 stroke snowmobile before.

Smart car turbo. It's beyond tiny and available on ebay for $130 or so. Compressor wheel is like 16mm or something stupid.

Build a powered r/c grill. Buy a small Weber grill and set up some wheels on the legs and rig this little guy up to it. Set up a simple steering system and buy a universal r/c controller. I don't think a turbo is going to work too well, so might as well do something funny.