Brainstorm: ghetto turbo mod

[Kenny_McCormic]

While working on the OHV piece of **** mower engine that shouldn't be allowed to be called a briggs I noticed something, the fan shroud had a big hole on the side that blew into the air cleaner, making a sort of ghetto turbo system.

Anybody ever do this to a 5hp panhead to see what kind of gain could be had?

 

[Magice]

mower engine that shouldn't be allowed to be called a briggs

My old mower was like that too. It was a Briggs, but it was all plasticy and junky and was the most problematic mower I've ever owned.

 

[Kenny_McCormic]

17hp OHV? Piece of carb blew a seal and filled the case with gas, now it burns oil so bad 2 passes on the yard and the sump is empty (thats with 20w50 30 weight probably wouldnt make it out of the garage). However IT IS entertaining to watch somebody run it across the yard with the deck down and try to see around the huge white smoke cloud.

 

[I like karts]

 

[oscaryu1]

I've been trying to do this since yesterday. Saw it on another forum. Briggs used to do this on their engines in the 60's...

 

[I like karts]

I might try it!

Even though it is more of a supercharger than a turbo if you think about it

still, somebody post some pics!

 

[oscaryu1]

Well I have plenty of ideas haha! I'm actually doing it. I have perfect plans for it, if it works out.

 

[I like karts]

If I do it with my L head, which side of the fan cover would I put the air hose on?

 

[Kenny_McCormic]

Dunno that would require some careful consideration of where the air flows, on the 17 horse it was on the carb side

 

[crazycart]

The good old John Deere 212 i have also has this but its a 12 hp kohler,but mines super reliable lol she never breaks

 

[oscaryu1]

Tip for you guys: Small tubing doesn't do squat. Then there's the problem of filtering out all that crap that gets blown in by the flywheel.

 

[I like karts]

get a piece of foam filter (the kind that comes stockon these engines) and stick it in the carb hole

 

[Kenny_McCormic]

Vacuum cleaner hose should work, I was thinking of just making a custom filter shroud for the stock filter from a coffee can.

 

[oscaryu1]

Vaccum cleaner hose should work. Stuffing foam in the mouth of a carburetor isn't.

 

[I like karts]

No, it would be fine because theres that little bar that goes across to hold it up inside the carb. It's not like its going to get sucked in.

 

[Kenny_McCormic]

No, it would be fine because theres that little bar that goes across to hold it up inside the carb. It's not like its going to get sucked in.

I wouldnt trust it plus think of surface area the filter needs to breath properly without a blower, compare that to the area of the intake.

 

[I like karts]

Or you could put a filter over the fan cover holes maybe?

 

[Kenny_McCormic]

Naw then it wouldn't get enough cooling air. Big custom air filter cover/box is the only way.

 

[oscaryu1]

Custom? I don't think do

 

[athif]

ye some motors are lint. I have a motor at school which has a flywheel made of plastic. The engine is finished because the gas doesn't seem to go into the engine