Is a catch can really worth it? Do they really do what there suppose to do or is it an "extra" to add to the engine bay

 

if you dont run a catch can all the oil it would catch ends up in the intercooler and licp

 

they are not just for looks lol. blow by is positive pressure in the crankcase caused by combustion gases leaking past the piston rings. even healthy engines have some degree of blow by, as it's virtually impossible for the rings to form a 100% air tight seal. hope this helps

 

so in other words its a must have?

 

It can't be a MUST have otherwise the car would have came with it.

 

Yah but once we start to push then engine more then its design, more blow-by is created.

A properly made Crank vent system will not only help make more power, but make the engine last longer by protecting the oil from contaminates.

 

So a JM Fabrication one is a good one to buy for 55$???

 

I agree. I should have been more clear that as hp/tq and boost increase then it becomes more necessary.

 

Picture

 

This. Also, when buying a catch can, make sure it's a functional one, or if you buy some cheap one from ebay, make it functional ( there's a how to around here...)

 

^ a guy is selling his on here that i just bought from him im picking it up tomorrow, picture above.

 

Add some -10 AN fittings to your valve cover if possible and get a catch can made by Andrew Kisner of Frontline Fabrication. I think he's going to be tackling a catch can for Evo's soon

 

the jmf catch cans will do fine. is he giving u any lines with it? either way $55 is a good deal.

 

I'm thinking about getting one also and was curious about it. Thanks for the info.

 

I heard once you start to go up in power and boost you'll want to get one. And since I got me a few new things for this year I decided to get one lol just bought a Greddy one on here for a good price. But I'd say once you start going pass 450 and up in HP I'd get it.