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Discussion Starter · #1 ·
Are all catch cans the same? They range on eBay from $20-120. I really want to order one but don't want to waste my money. Thanks
 

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Discussion Starter · #3 ·
Nice. They have some nice square looking ones on eBay that look nice. I think sick speed makes em. I didn't know if there was a difference. I figured they all have to be pretty much made the same. They day for turbocharged motors, does that matter?
 

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Don't beat me up for my question please cause I don't really know but what does a catch can do other that collect oil and why would I need one?
 

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Discussion Starter · #5 ·
It catches sludge+ oil. If it don't catch it then back to the motor it goes. Then it'll sludge up your valves. Catch can keeps your motor cleaner.

---------- Post added at 11:39 PM ---------- Previous post was at 11:37 PM ----------

My bad it catches mist + oil which turns into sludge . Very wise investment.
 

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What's the need of the air filter on it?
The filter allows the catch can to vent to atmosphere. I run a catch can because it also prevents oil mist from reentering the intake which also lowers your fuel octane and can also cause spark knock. I see around 18 lbs of boost and the last thing I want us detonation.
 

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I have a catch can too but it doesn't have a fancy air filter on it. It had some kind of valve at the bottom of it, I assume it was some kind of pressure release but plugged it because I don't want oil spitting on my engine. I wonder how important that air vent is.
 

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I have a catch can too but it doesn't have a fancy air filter on it. It had some kind of valve at the bottom of it, I assume it was some kind of pressure release but plugged it because I don't want oil spitting on my engine. I wonder how important that air vent is.
Mine also has a stain petcock on the bottom. If your catch can has no filter or breather than it likely is on air oil separator. I have no emissions controls on my car and no hoses are being rerouted to my intake. A true catch can should have a smokey vapor coming out of it.
 
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