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

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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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Опубликовано:

19 апр 2023

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Комментарии : 46

@diceloc441 6 месяцев назад

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

@r1ryan155 7 месяцев назад

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

@TheMileHighMechanic 7 месяцев назад

Absolutely!!

@JojoGT500 4 месяца назад

This is the best explanation I’ve found on RU-vid

@TheMileHighMechanic 4 месяца назад

I appreciate it. Glad you found it helpful!

@bfglittlejordz 3 месяца назад

Literally

@brianpeadenjr2402 11 месяцев назад

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

@TheMileHighMechanic 11 месяцев назад

Hell yeah, glad I could help!

@James-Johnson313 10 дней назад

K-series turbo FTW!!!

@TheMileHighMechanic 10 дней назад

Yessir!!

@AlexExecutive 2 месяца назад

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 2 месяца назад

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 2 месяца назад

@@TheMileHighMechanic thank you bro❤️

@TheMileHighMechanic 2 месяца назад

@@AlexExecutive absolutely 🫡

@AlexExecutive 2 месяца назад

@@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 2 месяца назад

@@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.

@markbarry881 2 месяца назад

fair play nice and simple 😎

@TheMileHighMechanic 2 месяца назад

👌👌 absolutely

@MezoBE 2 месяца назад

Great explanation. Helped alot

@TheMileHighMechanic 2 месяца назад

Glad I could help!

@jarrodjordan5293 11 месяцев назад

Nice, thank you.

@TheMileHighMechanic 11 месяцев назад

Absolutely!

@john7643 4 месяца назад

* 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 4 месяца назад

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.

@amirnr5063 2 месяца назад

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 2 месяца назад

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 2 месяца назад

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

@TheMileHighMechanic 2 месяца назад

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

@rzx_quantum3089 4 месяца назад

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 4 месяца назад

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 4 месяца назад

@@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 4 месяца назад

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

@arturomartinezmoctezuma8454 Год назад

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

@TheMileHighMechanic Год назад

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

@Wop416 10 месяцев назад

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 10 месяцев назад

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.

@jackspratt4343 Месяц назад

What is the "charge pipe" ? Thanks

@TheMileHighMechanic Месяц назад

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

@jackspratt4343 Месяц назад

@@TheMileHighMechanic OK thanks for explaining that.

@TheMileHighMechanic Месяц назад

@@jackspratt4343 absolutely!

@webplayerxvii Год назад

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

@TheMileHighMechanic Год назад

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.