2 Stroke Catalyst

[maierd]

Any exhaust guys know of any company (Foreign or Domestic) producing 2 stroke catalytic converters. Any information is welcome.

[maierd]

As a design project, I am looking to make 2 Strokes more environmentally friendly, example riding in Yellowstone National Park. Also redesigning exhaust pipes, and re-working fuel and ignition maps.

[fiveOnick]

I am curious what is this a design project for?

[maierd]

SAE Clean Snowmobile Challenge in Houghton, Michigan

[BlasterMod6]

would any of the 2 stroke crotch rockets(street bikes) have cats on em?

[fiveOnick]

Originally Posted by maierd

SAE Clean Snowmobile Challenge in Houghton, Michigan

Society of Automotive Engineers, nice. I dont know of one sorry, but I commend you on your challenge.

[ChewyR]

I would think that any catalayic converter would quickly become blocked with all the sludge a two stroke make, even if it was clean burning.

And since a two stroke heavily relies on it's pipe design it would have to be mounted after the expansion chamber and may not get hot enough to reach light off temprature.

I think effeciencies are better found in port designs, and cleaner/better oils. Look to the turbo diesel two strokes and see how they work.

[ThirtyTwo]

yeah a catalytic converter would clog up pretty quick on a 2-stroke

check this out http://auto.howstuffworks.com/catalytic-converter.htm


a really good way to reduce emissions is to run on alcohol, an alcohol 2-stroke is probably cleaner than a gas 4-stroke

[fasterblaster870]

hey they are making out board marine 2 strokes that run a catalitic convertor. i dont know all that much info on them but they perform better than 4 strokes and actually pullote less. i seen them advertised on tv but i can't even think of the make of them now..

[ChewyR]

you are talking about the Evinrude E-tec engines. I don't know for sure if they have catalayic converters but they are very clean burning. They use fuel injection directly into the cylinder, but I'm not sure how they worked out the oiling of the crank and rod bearings.