$projecthp
Thanks Thanks:  0
Likes Likes:  0
Dislikes Dislikes:  0
Results 1 to 11 of 11
  1. #1
    Eric ray
    Guest

    Default Catch Can Installed

    Installed an Elite Engineering Catch Can on my 2013 G/S. Will see how effective these things are.

    photo-2-18-jpg

  2. #2
    Member bucwheat's Avatar
    Join Date
    Dec 2012
    Location
    Evans Ga. USA
    Posts
    70
    Corvette(s)
    2012 Grand Sport White
    Post Thanks / Like
    Rides
    0

    Default

    I bought one a year ago never installed it,too hard to figure out.

  3. #3
    Member LLC5's Avatar
    Join Date
    Sep 2004
    Location
    Wa.
    Posts
    2,275
    Corvette(s)
    98 black 6spd convert.
    Post Thanks / Like
    Rides
    0

    Default

    Quote Originally Posted by Eric ray View Post
    Installed an Elite Engineering Catch Can on my 2013 G/S. Will see how effective these things are.

    photo-2-18-jpg


    What problem are you trying to fix with it?
    Master Technician

    25+ year ASE Master Certified Tech

    22+ year Honda Master Tech

  4. #4
    Eric ray
    Guest

    Default

    Quote Originally Posted by LLC5 View Post
    What problem are you trying to fix with it?
    More like preventative maintenance option for your PVC system. Helps keep unwanted oil and other vapors force back through your intake, which should help keep valves clean.

  5. #5
    Technical Writer for Internet & Print Media
    Join Date
    Jan 2001
    Location
    CenCoast CA
    Posts
    11,936
    Corvette(s)
    71 04 12 19
    Post Thanks / Like
    Rides
    0

    Default

    If you'r worried about keeping the backside of the intake valves clean, use a detergent based injector cleaner like Chevron Techron on a regular basis, say once every 4 or 5 fill ups.

    Unless your a serious trackday persion, my guess is you won't find a lot of oil in that catchcan system.

    About the only sitaution where a catchcan is useful is in cases of racing duty cycles where you get a lot of flow reversal though the PVC, ie: you get oil vapor coming out the clean side into the TB.
    Last edited by Hib Halverson; 06-24-15 at 10:22 AM. Reason: spelling

  6. #6
    Catch Can Installed Red Vette's Avatar
    Join Date
    Jul 2005
    Location
    Colorado
    Posts
    833
    Corvette(s)
    08 VR Convertible 2014 TR Coupe
    Post Thanks / Like
    Rides
    0

    Default

    I installed the Elite catch can in my 2014 non Z51 coupe. After 3000+ miles, I had collected almost 2 ounces of oil. Of course with a direct injection system, I wanted to catch as much oil from entering the system as possible. Not all catch cans are the same and I found the Elite to be very efficient as there was no oil in the outlet line from the can. The Z51 package requires another hose installation on the wet side. Chevrolet is on record I believe that catch cans are not necessary on direct injection engines, but the installation does not void the warranty. To solve the wet (dirty) side of the system on the Z51, Chevrolet recommends that the oil level on the dip stick be at the 1/2 full mark or less, oitherwise the air filter box gets coated with oil. Many European manufacturers install catch cans on their direct injection engines. I have not put a catch can on my 2008 connvertible.

    Barrett

  7. #7
    Technical Writer for Internet & Print Media
    Join Date
    Jan 2001
    Location
    CenCoast CA
    Posts
    11,936
    Corvette(s)
    71 04 12 19
    Post Thanks / Like
    Rides
    0

    Default

    The OP was about catch cans on port injected engines. I think they are a waste of money and effor unless the application is a track or race car.

    Oil ingestion and catch cans on DGI engines is a different issue. All manufacturings with DGI engines are having to deal with what to do about intake valves which get oiled through the normal function of the PCV system and then the oil cokes.

    My understanding is that right now, if it's forced to address an DGI engine with coked-up intake valves, GM replaces the heads.

  8. #8
    Member
    Join Date
    Jul 2001
    Location
    Vacaville, ca, usa
    Posts
    105
    Corvette(s)
    2019 ZR1 Blade Silver Metalic
    Post Thanks / Like
    Rides
    0

    Default

    Quote Originally Posted by Hib Halverson View Post
    The OP was about catch cans on port injected engines. I think they are a waste of money and effor unless the application is a track or race car.

    Oil ingestion and catch cans on DGI engines is a different issue. All manufacturings with DGI engines are having to deal with what to do about intake valves which get oiled through the normal function of the PCV system and then the oil cokes.

    My understanding is that right now, if it's forced to address an DGI engine with coked-up intake valves, GM replaces the heads.

    Then would it be wise for owners of new C7's with LT1 and LT4 motors to install catch cans and check them for oil at every oil change ?? I find it hard to believe that GM has not included a service / maintenance procedure say at every 30K miles to address this issue.

    Also does GM sell a catch can thru their parts/ accessory dept , that won't void the warranty ??

    Thanks in advance !

  9. #9
    Member
    Join Date
    Mar 2014
    Location
    Columbus, NC/NE Georgia
    Posts
    2,293
    Corvette(s)
    1997 boosted silver coupe
    Post Thanks / Like
    Rides
    0

    Default

    Quote Originally Posted by LLC5 View Post
    What problem are you trying to fix with it?
    I honestly don't know if it is a problem for N/A or boosted engines; however, I'd prefer sending the oil vapors into a can rather than into the intake manifold. Not all the oil vapor makes it to the combustion chamber; some stays as deposits in the intake manifold.

    As I am boosted; I plan on venting the driver's side valve cover to the can also. Pressurizing the crankcase creates a resistance as the pistons come down. Under boost or high RPM operation the PVC's job is to prevent pressurizing the crankcase.

    Some interesting reading on the subject,

    Oil Catch Cans | Everything you need to know and more!

    The PCV valve serves two purposes in the stock setup. When in vacuum (as in the above diagrams), the PCV valves job is to limit the flow into the intake manifold (think of it as a coffee straw). If it were not there, the intake manifold would essentially have a huge vacuum leak, and idle would be erradic. On top of that, the amount of vacuum seen by the crank case would likely be way too high... hurting oil control and potentially causing damage to the motor.
    In boost, the PCV's job is to prevent boost pressure from entering the crank case. It behaves much like a check valve in this function, not allowing flow in the opposite direction. Herein lies one of the primary deficiencies of the stock system (especially at higher power levels): when in boost, not only does the crank case no longer have a source of vacuum to help purge the pressure... but it's also limited to a single port to vent out of. And unfortunately... that port is all the way on the opposite side of the motor from where the pressure is generated. As the pressure flow travels from the crank case, up through the timing cover, and out through the gamut of valve cover baffles... it picks up lots of oily vapors. The valve cover baffle network does a decent job at relatively low power levels, but as the blow by increases, they can become restrictive, and don't do as good a job in containing the oil. This means residual oil vapor ends up going into the turbo inlet pipe, and eventually into the motor. These oil vapors aren't just "nasty" cause they're dirty looking, but oil vapors can also significantly reduce the effective octane of the fuel, increasing the potential for detonation. Here's a diagram of the stock pcv flow under boost:
    PCV Plate & Vented OCC Notes


    I go back to the per-emmision days, when we would add vents to the valve covers. After a Sunday afternoon at the drag strip the valve cover breathers would leave a light coating of oil on the valve covers.





    Whoosh, and blur

  10. #10
    Member LLC5's Avatar
    Join Date
    Sep 2004
    Location
    Wa.
    Posts
    2,275
    Corvette(s)
    98 black 6spd convert.
    Post Thanks / Like
    Rides
    0

    Default








    I go back to the per-emmision days, when we would add vents to the valve covers. After a Sunday afternoon at the drag strip the valve cover breathers would leave a light coating of oil on the valve covers.








    I'm old enough to remember as a kid crossing a street and having to walk over tar strips in the middle of the road from engines venting down below the transmission bell housing and onto the streets. Ouch! Long time ago....
    Master Technician

    25+ year ASE Master Certified Tech

    22+ year Honda Master Tech

  11. #11
    Member
    Join Date
    Mar 2014
    Location
    Columbus, NC/NE Georgia
    Posts
    2,293
    Corvette(s)
    1997 boosted silver coupe
    Post Thanks / Like
    Rides
    0

    Default

    Quote Originally Posted by LLC5 View Post
    I'm old enough to remember as a kid crossing a street and having to walk over tar strips in the middle of the road from engines venting down below the transmission bell housing and onto the streets. Ouch! Long time ago....
    Yes it was and it was a good time to be alive with a driver's license, The air was filled with a smell from what the EPA would call unburnt hydrocarbons from something called cam overlap while radio antennas shook with power, not a miss. LOL
    Once, I helped stuff a 3x2 348 into a a late 1940s Chevy convertible. When it was floored, the overbore (long time since I used that word) breather would send smoke through the floorboards.

    In the beginning, "hot rods" were limited to those who could turn a wrench and swap an engine. In the mid-1960s, anyone with credit could own a fast car. However, it took no time at all for the guys who could turn a wrench to realize the muscle car was a way to start with more power in the basket. Today adds MPG to the power which is very cool.
    Whoosh, and blur

Similar Threads

  1. oil catch can
    By ernestD in forum C5 General Discussion
    Replies: 4
    Last Post: 07-24-10, 11:55 AM
  2. Oil Catch Can
    By ldf44 in forum C6 General Discussion
    Replies: 7
    Last Post: 11-29-09, 11:38 AM
  3. Catch Can Oil
    By Willfulone in forum C5 Technical and Performance
    Replies: 5
    Last Post: 08-16-07, 11:37 AM
  4. OIL CATCH CAN
    By TODD L GRIFFITH in forum C5 Technical and Performance
    Replies: 3
    Last Post: 08-23-06, 08:02 AM
  5. Can the defroster bezels be installed into the dash after the windshield is installed
    By studiog in forum C1 & C2 General and Technical Discussion
    Replies: 3
    Last Post: 08-31-05, 06:05 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •