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Catch Can & LS6 VCT update

This is a discussion on Catch Can & LS6 VCT update within the General Help forums, part of the LSx Technical Help Section category; Originally Posted by KMdef9 I done been told that it isn't blow by the catch can........ well, catches? Troof? In ...

  1. #21
    Moderator Cutlass's Avatar
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    Quote Originally Posted by KMdef9 View Post
    I done been told that it isn't blow by the catch can........ well, catches? Troof?
    In my opinion, blow by does have an effect on how much oil is consumed through the PCV system or how much is caught in the catch can.

  2. #22
    Waiting on the Tree transamtom's Avatar
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    Quote Originally Posted by KMdef9 View Post
    Much crappier looking than that. I paid less than $20.
    Mine was $49.00+shipping is anodized blue and came complete with all the fittings and hose.

    BTW it came in the mail Thursday,installing it today or tommorow.

  3. #23
    Spaz is My Mentor SMWS6TA's Avatar
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    Quote Originally Posted by transamtom View Post
    Mine was $49.00+shipping is anodized blue and came complete with all the fittings and hose.

    BTW it came in the mail Thursday,installing it today or tommorow.

  4. #24
    Moderator Firebirdjones's Avatar
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    Quote Originally Posted by Cutlass View Post
    In my opinion, blow by does have an effect on how much oil is consumed through the PCV system or how much is caught in the catch can.
    I would tend to agree. Although blowby is a contributing factor for this problem, oil in the PCV seemed to be common with these cars even with a healthy engine. So I don't look at blowby as the only root cause.

  5. #25
    Waiting on the Tree transamtom's Avatar
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    Quote Originally Posted by SMWS6TA View Post
    I had one on the previous page.

    here it is

    http://www.ls1.com/forums/attachment...8&d=1303324050

  6. #26
    Senior Member bills98ta's Avatar
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    It's more due to oil splash...

  7. #27
    Moderator Firebirdjones's Avatar
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    Quote Originally Posted by bills98ta View Post
    It's more due to oil splash...
    Yes, and putting the PCV pickup points at the very rear of the valve covers was just a bad idea. It's right where the excess oil sloshes every time you take off. PCV's should draw from the front (or near the front) of the covers,,,or near the front of the valley pan.

  8. #28
    Waiting on the Tree transamtom's Avatar
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    Quote Originally Posted by Firebirdjones View Post
    Yes, and putting the PCV pickup points at the very rear of the valve covers was just a bad idea. It's right where the excess oil sloshes every time you take off. PCV's should draw from the front (or near the front) of the covers,,,or near the front of the valley pan.
    Makes sense to me on both counts.

    Maybe just modifying the valve covers is the proper answer.

  9. #29
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    hey transamtom who makes that catch can and how much ?? thanks ahead of time.

  10. #30
    Waiting on the Tree transamtom's Avatar
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    Quote Originally Posted by oldmano2z View Post
    hey transamtom who makes that catch can and how much ?? thanks ahead of time.
    I got it off Ebay

    Here it is:

    http://cgi.ebay.ca/CHEVY-GM-RACE-RAC...item3a5a248892
    Last edited by transamtom; 04-25-2011 at 04:15 PM.

  11. #31
    Moderator Firebirdjones's Avatar
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    Quote Originally Posted by transamtom View Post
    Makes sense to me on both counts.

    Maybe just modifying the valve covers is the proper answer.
    Yes, if you could just simply rotate the covers around it would solve alot of it.

    Sometimes I don't understand GM. They had been making cars with PCV's and drawing from the front of the covers (or valley pan) since the mid to late 60's,,,never had any sort of oil sucking issues with various brands (Olds, Buick, Chevy) Then the LS1 comes out and they move it all to the rear of the covers then like magic we suddenly have intake oil sucking issues.
    It was probably a packaging issue or something. I just don't care for the setup.
    GM at least tried to rectify some of it by placing the PCV up in the front of the valley on the LS6 in 2001. But they didn't follow suit on all the production base LS engines though

    And to add to that,,,,PCV's are said to be most affective on the driver side cover due to crankshaft rotation. Yet GM installed a "T" fitting at the rear and branched the PCV hose off to both rear valve covers,,,,DUH!!
    Last edited by Firebirdjones; 04-25-2011 at 04:23 PM.

  12. #32
    Waiting on the Tree transamtom's Avatar
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    I may have found the reason oil was getting in the TB.

    My PCV hose was rotted right by the PCV valve,it was toward the block so you couldn't see it.

    It was sucking unmetered and unfiltered air into the crankcase causing oil to come back up the clean side.

    I McGivered a solution with some heater hose I had laying around it aint pretty but it works.

    GM wants $160.00 for the whole hose and line that wraps around from the driverside
    2010 Camaro SIM 2SS/RS A6
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  13. #33
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    ^^ needs a LS6 VC

  14. #34
    Spaz is My Mentor SMWS6TA's Avatar
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    Quote Originally Posted by transamtom View Post
    I may have found the reason oil was getting in the TB.

    My PCV hose was rotted right by the PCV valve,it was toward the block so you couldn't see it.

    It was sucking unmetered and unfiltered air into the crankcase causing oil to come back up the clean side.

    I McGivered a solution with some heater hose I had laying around it aint pretty but it works.

    GM wants $160.00 for the whole hose and line that wraps around from the driverside


    GMPartsDirect has it for about $85 plus shipping, but..........

    You have 2 other options to fix it.

    Option 1. This is the quick/cheap fix for the PCV. Cost about $12
    PCV Valve Recommendation / Housing Modification

    Option 2. This is the LS6 VCT mod. It deletes the crappy PCV system and moves it to under the valley cover tray. And get this it only cost about $58 at gmpartsdirect, about $70 from Scoggin Dickey. There is some cutting. You have to make a notch on the block and it is not that hard to do. If you know you have a LS6 block then you have no need to notch. I have done this as well as many others and highly recommend doing it. It can be done in an afternoon. If you consider this I would also recommend replacing the knock sensors while your there.

    LS6 valley cover in pics

  15. #35
    Waiting on the Tree transamtom's Avatar
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    ^^^^^
    Thanks.

  16. #36
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    knock sensors.......and wiring harness......no need to do the job twice...and have a new OPSU handy in case.....

  17. #37
    Spaz is My Mentor SMWS6TA's Avatar
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    Quote Originally Posted by sjsingle1 View Post
    knock sensors.......and wiring harness......no need to do the job twice...and have a new OPSU handy in case.....
    yeah Orion warned me about it when I was doing my LS6 intake swap and I wasn't sure at the time what he meant because when I was looking at the back of the block I didn't see it (that's because when I took the intake off the break booster hose knocked the OPSU off and it fell to the floor, never saw it). So I got it all put together and started up and notice no oil pressure. I was like . So I looked it up then felt back where it was and ended up putting my fingers into the hole. I was So anything that is worth it is worth doing twice right???? Took everything back off, got the damn OPSU and fixed it right.


    Lesson learned the hard way.

  18. #38
    Electrical Engineer KMdef9's Avatar
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    Quote Originally Posted by sjsingle1 View Post
    knock sensors.......and wiring harness...... fast 102 intake....no need to do the job twice...and have a new OPSU handy in case.....
    Fixed. Lol.

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