Routing Wastegate and Blow-Off Valve Lines | Explaining how a BOV and Wastegate Work

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  • เผยแพร่เมื่อ 13 มิ.ย. 2024
  • In this video, I will explain how a blow-off valve and a wastegate work and show you how to route vacuum lines to each. There are many misconceptions about the purposes of the wastegate and blow-off valves, but in this video, I will address their true purpose.
    00:00-00:19 - Intro
    00:19-06:07 - Wastegate
    06:07-10:20 - Blow-off Valve
    10:20-12:12 - Plumbing
    12:12-12:35 - Outro
    All video taken by the Mile High Mechanic
    All demonstration provided by the Mile High Mechanic
    KEEP ON IMPROVING!!!!
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ความคิดเห็น • 44

  • @r1ryan155
    @r1ryan155 6 หลายเดือนก่อน +5

    Best video iv seen explaining the diffrence. Thank you sir.

  • @brianpeadenjr2402
    @brianpeadenjr2402 11 หลายเดือนก่อน +3

    Very informative! I've been a car guy my whole life but never really played with boost. Building a turbo kit for my truck and putting a Paxton on the Mustang. This is helpful in both cases

  • @kfxguy7198
    @kfxguy7198 3 หลายเดือนก่อน +5

    This is the best explanation I’ve found on TH-cam

  • @diceloc441
    @diceloc441 5 หลายเดือนก่อน +4

    Boy I thought this was Chris fixit for a second. When it started lol

  • @markbarry881
    @markbarry881 หลายเดือนก่อน +2

    fair play nice and simple 😎

  • @MezoBE
    @MezoBE 2 หลายเดือนก่อน +1

    Great explanation. Helped alot

  • @jarrodjordan5293
    @jarrodjordan5293 10 หลายเดือนก่อน +1

    Nice, thank you.

  • @AlexExecutive
    @AlexExecutive 2 หลายเดือนก่อน +3

    Thank you for your useful video. My question is, the hose that we pull from the turbo nipple sucks the air or blows the air out ?

    • @TheMileHighMechanic
      @TheMileHighMechanic  2 หลายเดือนก่อน +1

      That is a boost reference, so it reads positive pressure while boosting. At idle it may read vacuum, but it depends on the size of the turbo. To answer your question more clearly, that nipple should be tapped into if you want something that requires positive pressure ("blowing") like a waste gate.

    • @AlexExecutive
      @AlexExecutive 2 หลายเดือนก่อน +1

      @@TheMileHighMechanic thank you bro❤️

    • @TheMileHighMechanic
      @TheMileHighMechanic  2 หลายเดือนก่อน +1

      @@AlexExecutive absolutely 🫡

    • @AlexExecutive
      @AlexExecutive 2 หลายเดือนก่อน +1

      @@TheMileHighMechanic then in electronic selonoid top port is connected to turbo nipple with a 《T》. if positive presseure goes into top port it causes decrease boost and opening wastegate valve sooner. isn't that right? im a little confused

    • @TheMileHighMechanic
      @TheMileHighMechanic  2 หลายเดือนก่อน

      @@AlexExecutive Look at 2:20 the top port is only for a boost controller. It adds positive pressure to the top to make it harder to open the valve. This means that the bottom port (boost reference) must overcome the pressure of the spring and the dome pressure instead of just the spring. This increases boost. Hope that makes sense.

  • @arturomartinezmoctezuma8454
    @arturomartinezmoctezuma8454 ปีที่แล้ว +1

    Keep up de vids its been over a month on the turbo toaster

    • @TheMileHighMechanic
      @TheMileHighMechanic  ปีที่แล้ว

      New vid Wednesday! I've been really busy with school stuff but I'm getting back into it

  • @amirnr5063
    @amirnr5063 2 หลายเดือนก่อน +2

    if we have a electronic boost controller and double port wastegate ,then we set it up
    my question is buttom port is gonna suck the air and the top port gonna blow the wastegate diaphragm to increase boost?

    • @TheMileHighMechanic
      @TheMileHighMechanic  2 หลายเดือนก่อน +1

      Yes, adding positive pressure to the top of the waste gate is called "dome pressure" and is a way to increase the release pressure of the waste gate. This will boost the turbo more.

    • @amirnr5063
      @amirnr5063 2 หลายเดือนก่อน +1

      @@TheMileHighMechanic cool then the bottom port works with negative pressure?

    • @TheMileHighMechanic
      @TheMileHighMechanic  2 หลายเดือนก่อน +1

      ​@@amirnr5063No, bottom is for boost reference...(2:20)

  • @Wop416
    @Wop416 9 หลายเดือนก่อน +1

    Currently have a 2019 q50s red sport 3.0L Twin turbo. I would like to install HKS BOV…mostly just for the sound. The car stock comes with a waste gate. Would me installing a BOV with out a tune be safe ?

    • @TheMileHighMechanic
      @TheMileHighMechanic  9 หลายเดือนก่อน +1

      Every turbo car has a wastegate and BOV...if all you are doing is removing the BOV and replacing it with another one, it will be fine.

  • @john7643
    @john7643 4 หลายเดือนก่อน +1

    * there are many ways to have wastegate boost control
    1-electronic
    2-co2
    3-bleed off
    And probably more
    *the blow off spring is a measure of boost control, the spring will bleed off boost if you go over the rated spring rate in the blow off valve

    • @TheMileHighMechanic
      @TheMileHighMechanic  4 หลายเดือนก่อน

      The spring in the blow off valve is there for nothing more than to keep the valve closed at idle. The blow off valve is operated completely on pressure differences between manifold and intake. This is a common misconception.
      The waste gate spring, however, works exactly the way you described...it bleeds off pressure when the pressure in the bottom chamber reaches the rating of the spring.

  • @rzx_quantum3089
    @rzx_quantum3089 3 หลายเดือนก่อน +1

    What is your boost reference for the wastegate plumbing and what do you hook it up to in general? Great and easy to follow video btw.

    • @TheMileHighMechanic
      @TheMileHighMechanic  3 หลายเดือนก่อน +1

      I ran mine straight to the turbo. A lot of turbos have a nipple on them that you can use, but if you don't have one I recommend tapping into the charge pipe around the turbo.

    • @rzx_quantum3089
      @rzx_quantum3089 3 หลายเดือนก่อน +1

      ​@@TheMileHighMechanic thank you Soo much, that's the thing that everyone else left out when explaining how a wastegate works and go figure it's something this simple

    • @TheMileHighMechanic
      @TheMileHighMechanic  3 หลายเดือนก่อน +1

      @@rzx_quantum3089 Yep, these things seem daunting at first, but once you break it down they all become simple.

  • @webplayerxvii
    @webplayerxvii ปีที่แล้ว +1

    Is the co2 canister something you'd use on a daily?

    • @TheMileHighMechanic
      @TheMileHighMechanic  ปีที่แล้ว

      I've seen them used on daily drivers but it is a lot simpler to skip out on the whole system. Mostly I see them on drag cars so they can switch up the tune on the fly by being able to change the boost number on the computer.

  • @jackspratt4343
    @jackspratt4343 24 วันที่ผ่านมา +2

    What is the "charge pipe" ? Thanks

    • @TheMileHighMechanic
      @TheMileHighMechanic  24 วันที่ผ่านมา +1

      It is the pipe that transports the charged air from the turbo to the intake manifold.

    • @jackspratt4343
      @jackspratt4343 20 วันที่ผ่านมา +1

      @@TheMileHighMechanic OK thanks for explaining that.

    • @TheMileHighMechanic
      @TheMileHighMechanic  20 วันที่ผ่านมา +1

      @@jackspratt4343 absolutely!

  • @Dsracechannel
    @Dsracechannel 9 หลายเดือนก่อน +2

    Do I need a wastegate or is a blow off valve enough

    • @TheMileHighMechanic
      @TheMileHighMechanic  9 หลายเดือนก่อน +3

      Without a wastegate, you will over-boost your engine. So in short you absolutely need a wategate.

  • @Imissthefuhrer
    @Imissthefuhrer 2 หลายเดือนก่อน +1

    Thank you, got the answers I was looking for. Bonus it was on a k series so translates perfect to my situation.