catch can importance?
Dec 21, 2006, 03:03 PM
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catch can importance?
Alright after a year of having my evo well 6 months of downtime to make money for the clutch 
i want to better my engine. I have a fully built and forged engine without a catch can, SO how important if any is it to have one?
i want to better my engine. I have a fully built and forged engine without a catch can, SO how important if any is it to have one?
Dec 22, 2006, 07:37 AM
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I run one on my car (wrx) and it works pretty well. After i got oil in my manual boost controller i realized it was time for one and no problems ever since. I get some sludge in the tank though and i am happy its in there and not in my intake pipe somewhere. Buddy of mine has the arc one for his evo and it works great for his built motor.
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Dec 22, 2006, 04:05 PM
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We barely have any oil coming out from the breather port I just run a hose all the way down with piece of shop towel at the end and its dry for months so not much if anything comes out. cheers 
Dec 22, 2006, 04:10 PM
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had one in my modded 03 8 for a year and not a drop of oil came out when i went to drain it to see what if anything accumulated. But they sure as hell look good in the engine compartment and cant hurt anything.
Dec 22, 2006, 04:12 PM
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there is a partial vacuum between the air filter and turbo...oil vapor will be "drawn" out of the breather port if its hooked up inbetween the 2
Dec 22, 2006, 06:06 PM
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when I had my GSX I swapped out the stock IC for an aftermarket one. When I pulled off the stocker oil sludge was visible on the inside. Since then I run a catch can on any turbo car I own. Whether we need them or not on the Evo I dont know but Id rather be safe then sorry I guess
Dec 22, 2006, 06:18 PM
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If you get one that's designed properly there will plenty of oil removed on both sides of the cover.
http://www.saikoumichi.com/DC3_page.htm
http://www.saikoumichi.com/DC3_page.htm
Dec 22, 2006, 09:40 PM
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45K miles and no oil anywhere. But like most, sometimes you dont even know till its too late. Better to spend 100$ then $100's down the road. PLus it does look nice.....
Dec 22, 2006, 09:59 PM
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I have been getting the oil in my intake. Is this a sign of your motor gettin weak? If my motor (i.e rings) were gettin weak and I had alot of crankcase pressure...wouldn't my dipstick blow out? Is the oil in the intake just from runnin 24...25 psi?? Should I worry?? I have noticed on occasion a puff of blueish black exhaust under sudden boost.