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Old 11-22-2017, 01:00 AM   #1
james duperre
 
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Drives: 2018 Camaro 1SS
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2018 SS catch can needed?

car has about 400 mile on her now, is this something i should have, will the 16-17 models fit the 18. thanks in advance
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Old 11-22-2017, 01:40 AM   #2
JeromeS13

 
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Wow. This has never been discussed before. /s
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Old 11-22-2017, 01:59 AM   #3
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Yes get one and yes they'll fit the 2018's.
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Old 11-22-2017, 04:27 AM   #4
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Stops "blow by" needed for sure. UPR rules!
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Old 11-22-2017, 08:59 AM   #5
mondelo
 
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I'd recommend it.

I've been seeing around 2oz of oil in the catch can when i check it (every 3k miles)

If you're planning to keep the car less than a few years then it doesn't really matter
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Old 11-22-2017, 11:05 AM   #6
umby24
 
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Maybe this will help
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Old 11-22-2017, 11:41 AM   #7
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no catch can here 23k full bolt ons and tune and no problems its up to you...
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Old 11-22-2017, 01:48 PM   #8
PackersFan26
 
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no catch can with 15k miles here. havent seen any problems but my valves probably look like shit
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Old 11-22-2017, 03:43 PM   #9
Ventmaster


 
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Drives: 2017 1SS 6spd
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I've caught about 80ml of nasty dark oil in 5K miles with my E2 from Elite Engineering.

Catch cans have a definite benefit with direct injection engines IMHO.
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Old 11-27-2017, 09:27 PM   #10
james duperre
 
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thanks guys, just ordered one.
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Old 11-29-2017, 12:28 AM   #11
JaxChris

 
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You don't need it. The factory oil separator is actually a superior design to the aftermarket offerings. The only thing that could improve the factory unit is to add a filter/regulator on the separator side of the PCV intake tube (the large middle one) that limits draw to something between 5-10psi and provides a secondary layer of moisture lock without tripping the factory evap monitoring.

The aftermarket cans which don't have an open flow back to the oil pan actually run at a much higher static pressure that keeps the oil suspended in a mist until the vehicle cools or shuts off. And a metal can body will cause humidity to be pulled back in through the intake pipe and condensed into water within the can. A plastic catch tray with a more stable operating temperature is better than metal rapidly heating and cooling next to the exhaust manifolds. Because the factory unit has less pressure and lower temperature variance than aftermarket off-board cans, there is less chance for blow by. A simple check valve doesn't do any real good when the valve still allows it to open without a post valve moisture filter. For any oil separator system, that should be the next evolutionary feature that gets developed. Currently there is no off the shelf regulator/filter small enough to easily place inline of the intake tube that will maintain such a low, fixed psi rating -- just making the filter would be easy.

Last edited by JaxChris; 11-29-2017 at 12:46 AM. Reason: Shortened response so people didn't glaze over
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Old 11-30-2017, 07:06 PM   #12
dotfiles
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I catch 2-3oz of oil every time I check it in mine as well (Mishimoto). Probably not necessary but it clearly keeps your valvetrain cleaner.
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Old 12-17-2017, 02:00 PM   #13
Marko
 
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Would this catch can reduce any smoke in the exhaust. On start up ?
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Old 12-18-2017, 06:29 AM   #14
ecko04

 
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Quote:
Originally Posted by Marko View Post
Would this catch can reduce any smoke in the exhaust. On start up ?

No.

You can reduce the sound by putting it into stealth mode but the same amount of exhaust will come out.


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