catch can?

[snowman2005]

what does a catch can do? is it something worth investing in?
thanx

[1995 geo tracker]

only catch can i can think of is one for the radiator over flow , you can get one from summit or jegs , they also make them for the oil system if you are running a dry sump system

[jcrx]

Catch cans are used to collect blowby, from the head, instead of recycling it into the intake, intake manifold, and head. Mostly they are seen on turbo applications, as N/A or lightly modded engines don't burn enough oil up to require one.

They do help keep the insides cleaner, but IMO unless you are boosted, they are a show item.

[snowman2005]

thanx

[Ricochet]

Doesn't Greddy make a catch can that connects to the actual turbo housing to keep it lubed? The sludgy stuff stays in the can but the oil fumes go through. I think that's how my buddy hooked his up..

[jcrx]

Originally Posted by Ricochet

Doesn't Greddy make a catch can that connects to the actual turbo housing to keep it lubed? The sludgy stuff stays in the can but the oil fumes go through. I think that's how my buddy hooked his up..

No, there's no way for that to work. Turbos have oil sending, and oil return lines. All putting a catch can inbetween would do is fill it up with oil.