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Thread: Breather re-route

  1. #11
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    Sirius815 does it improve your idle and running at the low end compared to the stock set up?
    I imagine the catch can and the extra lines would act as a baffle as well as clean the oil/water vapor that comes out. Seems like the best way for low maintenance, no air filter to change, best emissions by vacuuming the lines out. How is the engine performance affected by this?
    Do you have any pictures of how you set it up?

  2. #12
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    I did not run a catch can. On my 09' Bolt I ran the hose down near the kick stand mount and put a radiator drain on the end with the drain open just alittle. Seems to work fine and keeps that hot, oily air away from the air filter. Plus I had fun installing it. Plus my little cone filter is blue to match the hero blue wheels on my bike, lol

  3. #13
    Xlxb could you show me the part numbers for everything?

  4. #14
    Senior Member rchuff's Avatar
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    I have done this and my throttle body is clean and runs great. Every once in a while I spray my IAT with electrical cleaner but it is always clean any way. ( that is just me.)

  5. #15
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    Search eBay (go cart oil catch can) on EBay. Pick your color. Price start at $15.00 plus shipping.

    Throw everything away except the drain valve.

    Search eBay for (stainless steel cushion clamp) select the appropriate size.

    Menards plumbing section, brass fittings. Buy 3/8" pipes(2) the desired lengths and a 3/8" barbed T. I used a 6" for the filter and I would get maybe 2" or less for the lines from the PCV. I retapped the top of mine to fit a barbed fitting using the proper tools. Didn't go real well so that is when I figured out the brass pipe option. And slid the hose over it for looks.

    I believe everything else is self explanatory.

  6. #16
    Senior Member lunaticfringe's Avatar
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    I have done this and my throttle body is clean and runs great.
    very nice set-up there rick. clean and well-executed.

  7. #17
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    ...this post is in the Blast section...

    A breather re-route keeps your carb from sucking oil into the engine that was otherwise spit out from the crankcase. Whether that is worth any power is debatable, but the smoother idle is noticed immediately.

    Check with Dan for his custom catch can setup.

  8. #18
    Junior Member
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    Jun 2015
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    Question on Dan's catch can:
    Doesnt the Breather System need a vacuum to make it work?
    I was looking at this as the Tfitting pointed toward the Venturi is Pulling the gases from the PCV, with out it How would the breather filter by itself do anything ?
    Thank You in advance,

  9. #19
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    Doesnt the Breather System need a vacuum to make it work?
    No. The valve on the rocker box cover is the PCV valve, or Positive Crankcase Ventilation. As pressure builds in the crankcase, it is ventilated through that valve. Vacuum is not required. The reason for the Tee in the intake tract is EPA regulations requiring crankcase gases to be sent back through the combustion cycle instead of the raw gases being expelled into the atmosphere.

  10. #20
    Senior Member GregoXB's Avatar
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    In the ASB exhaust shootout it says a breather reroute adds 1-2 HP. That is on an XB though...



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