+ Reply to Thread
Page 1 of 2 1 2 LastLast
Results 1 to 10 of 20

Thread: engine breather

  1. #1
    Join Date
    Feb 2009
    Location
    derbyshire, england
    Posts
    21

    engine breather

    I tried using the search but it don't work for me. My question is , how do you guy's set up your engine breathers. I made a three into one fitting, both rockers and valley and fed them into a catch can. I have read somewhere that one of the rockers should go to air inlet with a oneway valve for boosted applications to help keep the engine clean ?. have I done it wrong?
    all breathers go to this home made catch can.




    thanks

  2. #2
    Join Date
    Apr 2008
    Location
    Winnipeg, Manitoba, Canada
    Posts
    192
    I usually run two -8 lines from the passenger side valve cover to a catch can (or one -8 from rt cover and one -8 from the left cover), then run one of these kits attached to the catch can (I throw the breathers out on these kits) Moroso 25900 - Moroso Crankcase Evacuation Systems - summitracing.com

    It works extremely well, the kit will actually pull a few inches of vacuum on the crankcase.

  3. #3
    Join Date
    Sep 2005
    Location
    Austin Tx.
    Posts
    13,138
    Quote Originally Posted by Justin_Inc View Post
    I usually run two -8 lines from the passenger side valve cover to a catch can (or one -8 from rt cover and one -8 from the left cover), then run one of these kits attached to the catch can (I throw the breathers out on these kits) Moroso 25900 - Moroso Crankcase Evacuation Systems - summitracing.com

    It works extremely well, the kit will actually pull a few inches of vacuum on the crankcase.
    Got a picture of your setup? Im interested as well in breather setups. Ive got a catch can on the driver side, but nothing on the passenger side, and I need to get something on there asap
    1951 3100
    1984 C10

  4. #4
    Join Date
    Apr 2008
    Location
    Winnipeg, Manitoba, Canada
    Posts
    192
    I dont think i'll have any pics of the setup yet but i'll dig around and see if i can find them. I have the engine out right now but i'm sure i've got to have something of the old setup laying around

  5. #5
    Join Date
    Dec 2008
    Location
    florida
    Posts
    27
    i dont understand what the big deal is with catch cans. i just run normal breathers on my valve covers. i don't see a need to re capture the oil fumes.

  6. #6
    Join Date
    Nov 2007
    Location
    Pittsburgh, PA
    Posts
    3,581
    Quote Originally Posted by chevy1500z71 View Post
    i dont understand what the big deal is with catch cans. i just run normal breathers on my valve covers. i don't see a need to re capture the oil fumes.
    i a case like mine another FI cases. you need the can to catch some of the oil being pushed by. Yes blowby. Eventhou majority of FI ppl dont have the proper setups anyways
    2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
    2002 Silverado - 427Lsx w/ Twin gt4202s
    2010 Silverado crewcab Z71 - 5.3litre w/ procharger
    2000 Wrangler - 5.3litre with some stance
    2014 Xsport- 3.5 Eco boost
    412 Motorsports

    it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference

  7. #7
    Join Date
    Aug 2008
    Location
    North Texas
    Posts
    12,078
    Quote Originally Posted by Quik View Post
    i a case like mine another FI cases. you need the can to catch some of the oil being pushed by. Yes blowby. Eventhou majority of FI ppl dont have the proper setups anyways
    Huh?

  8. #8
    Join Date
    Jun 2007
    Location
    saratoga springs ,new york {upstate ,adirondacks }
    Posts
    1,878
    you definately need one if you have f/i ,or youll end up with oil all over .even if you have just breathers,theyll end up filling up with oil /condensation and leaking all over.plus they stink with braeathers only .it helps the smell to have a catch can.run -8 from drivers side then -8 from the pass side ,merge them together into a 10- 12- into catch can.easy.theyre are other methods ive seen that may be more affective ,but this seems to work descent for me.good luck
    mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .

  9. #9
    Join Date
    Mar 2003
    Location
    San Marcos Texas
    Posts
    4,393
    Mine doesn't leak a drop of oil out the breathers.
    2006 Superior Blue Trailblazer SS AWD, Stock as a rock

    Sold: 2002 GMC Sportside Denali front end with a 2002 LS1, FLT level 5, Yank 2600, Trick Turbo, T76, Nelson intercooler, 60LB injectors, Warbro fuel pump, Eaton locker, Magnaflow, 3.42, Nelson Performance Tuning (speed density).

    Sold: 1981 GMC LB RC 1500 2002 4.8L 4L60E 12 bolt 3.73 Richmond Lock Right AC PS Nelson Performance tuning

  10. #10
    Join Date
    Dec 2008
    Location
    florida
    Posts
    27
    saying that oil runs everywhere sounds absurd, what does the fact that its fuel injected change? every motor on earth gets blow by, fuel injected or carbureted.

    breathers look so much beter then a catch can. if i was running lines off the valve covers it certainly wouldn't be for a catch can, it would be for a crank case evac system.

+ Reply to Thread

Posting Permissions

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