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Old Jul 9, 2024 | 09:25 PM
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Default Catch Can

My 2000 has 94000 mi on it. Would it be a good investment to install a catch can on it??? Vehicle runs great.
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Old Jul 10, 2024 | 09:45 AM
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In my opinion,(assuming your PCV system is running as designed) it's not going to do a whole lot for you unless you drive with sustained high RPM, and/or running a higher oil pressure.

Last edited by Markolc1981; Jul 10, 2024 at 02:33 PM.
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Old Jul 10, 2024 | 01:42 PM
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I installed an Elite Engineering catch can on my ‘00 and ‘03. I did not use the car in competition and just did regular driving (occasionally spirited), but the catch can did trap enough oil from going into the intake that I felt it was worth it. You will have to decide if it is worth it to you.
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Old Jul 10, 2024 | 01:48 PM
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When I asked my go to ex GM mechanic Vette Specialist about Catch Cans, he said does not help anything.
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Old Jul 10, 2024 | 01:58 PM
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If it ain't broke don't fix it.
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Old Jul 10, 2024 | 03:22 PM
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You really dont need a catch can unless you have a
turbo or supercharger.
Good luck
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Old Jul 10, 2024 | 09:46 PM
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Originally Posted by namvet6869
My 2000 has 94000 mi on it. Would it be a good investment to install a catch can on it??? Vehicle runs great.
no it will not - leave runs great alone
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Old Jul 11, 2024 | 08:23 AM
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Speaking from experience. My 2K has 124,000, runs great. When I replaced the intake with an LS6 unit I noticed a lot of oil in the intake. Having used catch cans several times in the past on boosted Grand Nationals, NA engines and on my quarter mile runner Harley's I put one on my LS1 along with an LS6 valley cover. It catches around a tablespoon or two in a tanks worth of gas. I am planning a powertrain update soon so not really worried about the seemingly excessive blow by, IMO a lot of it is caused by the piston rock/slap compromising the ring seal the LS1 is so famous for.
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Old Jul 11, 2024 | 02:06 PM
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I have a Moroso that drains from the bottom with a valve, that is about the amount I get in a tank of fuel. Oil lowers octane rating, good enough reason for me to keep it out of the intake mixture.
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Old Jul 11, 2024 | 10:13 PM
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Originally Posted by rrwirsi
When I asked my go to ex GM mechanic Vette Specialist about Catch Cans, he said does not help anything.
Well that sounds just like a GM mechanic.
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Old Jul 13, 2024 | 08:42 AM
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Here’s my setup, about one tablespoon every 1k

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Old Jul 13, 2024 | 12:32 PM
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Originally Posted by corrrvettec5
what year is your car? I thought i’d the line comes of the valley cover it has a built in pcv valve
2003
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Old Jul 13, 2024 | 05:56 PM
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Originally Posted by CorrrvetteC5
did it come from the factory with an external valve?
the valve you see on the line is the original factory valve that was on the car
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Old Jul 13, 2024 | 10:24 PM
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2004-2005 LS6 motors got the PCV valve that was integrated into the valley cover. 2001-2003 used the external PCV valve.
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Old Jul 14, 2024 | 12:28 AM
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LS6 motors existed in 2005 for the Cadillac CTS-V.

All LS6 motors sure did have have the PCV come off the valley cover.
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Old Jul 14, 2024 | 12:37 AM
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Originally Posted by CorrrvetteC5
2005 was an LS2. And 2001-2002 cars don’t have the line coming directly off the valley cover
All 01-04 Z06's did
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