Benefits of an Oil Catch Can

shailynn

Member
Simple question for which I cannot find an answer to.

What are the benefits of adding an Oil Catch Can?

Just looking for new mods.
 
Oil Catch Cans collect the oil, moisture and blow-by gas that causes carbon and sludge build-up in the intake system and engine to keep them clean even under harder driving conditions. See them a lot on cars that are driven hard on a daily basis or see some track use. It's definitely not something that would hurt thats for sure!
 
Last edited:
the can also prevents the engine from burning the oil which increases chances of detonation and pinging
 
Interesting....cost?


cost can range from ~$20 (DIY) to ~$100 (Greddy)

Im redoing mine to the one Jeff listed above with some material inside to catch more vapor.

its really easy to do. Most FI guys do this to there cars. I havent read much on NA motors using this. But any oil going into your intake is not good, which also lowers your octane of the gas.

http://www.turbophile.com/technical/diy_catch_can.html
Sometimes called an oil-air separator, these items are a useful addition to any car, but especially CA18DET's as they are known to have quite a bit of pressure in the crank case. The catch can acts as a reservoir for the oil blown out of the outlets of the tappet cover. Instead of being tapped back into the intercooler piping before the turbo, and also directly into the plenum as is standard procedure, the 2 lines both run into the catch can.
Any oil that comes out of these lines then is trapped in the can, with no oil being recirculated back where it isn't needed. Every few months its a simple matter of letting the excess oil drain from the drain plug at the bottom of the can. Alternately you can run a line back down to the sump to let the oil drain down there automatically.
This avoids the common problem of oil all through the intercooler piping, intercooler plenum and vacuum lines, and ensures that only clean air is circulated in these areas and eventually burnt in the motor.
 
Back
Top