These tutorials are a great way for the average Joe to gain insight into what the various turbo components do. Thanks for educating the masses😝🤓😎!

He explains this so well, you could not know anything about turbos and or cars and still understand what he is on about. What a guy! Thanks!

Bret is a great teacher! I like the way MCM is making these videos, one concept at a time. All of us had to learn it somewhere in the past so it makes things great for beginners or outsiders. I've learnt more with the super gramps series than with any other car show.

Just weld the waste gate shut, unlimited boost baby

Boost is good and in this episode, Brett explains what it is and how it works - MAD!

Would be interesting to see one covering crankcase ventilation with turbos and such, hell.. even an episode even just covering the topic in general would be interesting.

Learned some things today; understanding how things work and not just what they do greatly improves decision making and diagnosis of potential issues significantly easier. Thanks Brett for giving up your time to share some knowledge with us.

Learned more about turbos in 5 min, than last semester in school. Keep up the good job mcm!

U explained this so well especially as when I redline my check injection comes on then says low boost pressure but only comes on when turbo tapers off .well understood

Great explanation. I have a much better understanding of waste gates and boost controllers now. I could listen to brett talk for hours.

GFB = +500KnowledgeWatts being a mechanically inept owner of a GTD. I'm loving this series that explains the basics of turbo's.

I don't normally have the chance to work on turbos, but I really enjoy these technical videos. I do plan on throwing a small turbo on one of my old Willys one of these years.

In the 90s we used to put vacuum Ts into the wastegate line on the dodge 2.2l to up the boost for less than a dollar.

These vids are such a great idea, i've always had N/A cars and was pretty clueless on turbo set-ups until now.

The old Corvairs had a different form of boost control. They had no wastegate or blow off valve, they used a small carburetor. A small side draft Carter YH (about 1 5/16" if memory serves). Which, on my 65 turbo promptly replaced with a Weber DCOE with 28mm chokes. The small carb not only controlled boost but make it very slow to build. It was a pain to tune but damn did it make power. Now with electronic control and FI it's amazing what turbos can do.

i learned all of that watching your old videos

that a IS38 on the left. Shoutout the the guys on the MQB platform. Awesome vid Brett, looking forward to what is to come!

One of the best explanation videos iv seen about this subject...

I literally knew nothing about turbos after buying an XR6t last week. Thanks for the killer vid man! Totally get it now cheers 🍻

i love the retro intros for mcm and this show. it reminds me of car shows when i was a kid

Best video ever. Simple to the point , not a ton of fluff but still very entertaining. One thing I would like to see (and I see this with a lot of videos), an outro . if you could add a little Outro maybe five seconds of thank you to the viewers just to give me time to hit the like button.

"I like big boost and I cannot lie" ...? Surprised nobody beat me to this one.

This might sound rather narcissistic, but it's intended as a compliment. Even when I know everything on the subject (such as this video about boost controllers) I still REALLY enjoy watching the video. Just because it's presented and edited so well!

Could have added a bit more to this. like the differences between an internal and external gate, as well as the affects of gate size and placement.

This was very informative and easy to understand! Thanks Brett! Please make more!

Thats awesome. Stuff you should know if you own a turbo.

Really loving these Go Fast Brett videos, he makes it so easy to understand :D

Damn Martin!, back at it again with them terribly funny/bad car puns LOL.

Very well done video! Super quick and clear explanation of good ol turbskis

how about external wastegate? in the next episode?

Love this vid series, already know most of the content but still love seeing it presented like this. Keep it up.

Excellent job explaining complicated components

Well u can't get it any clearer than that thanks for your time and services to us all.

The video showed up at the perfect time! I think I have a faulty N75 valve on my 00' A6 2.7T, and this helped me pictures what's going on with my waste gate so much! (though it's still a bit different)

Best 5 mins of my life

Not all turbos waste gates work the same, newer models now works with vacum which is made by a vacum pump and electronicaly controled via engine management, you simply cannot use a leak offen valve as it waste gate needs vacum to close and not vacum to open.

Really cool series! You guys should do all sorts of things like this on cars with different experts, sort of like an MCM engineering explained.

Great video ! Please do a video regarding the advantages & disadvantages of air-to-air and air-to-water intercoolers

Extremely helpful. How come nobody ever talks about the manual boost controllers: Where they go, and what they do. Not that I didn't already know, but thank you so much anyway.

His name could be an engine code. BR3TT

This is probably a dumb question but why not just put a stiffer spring behind the diaphragm so it takes more pressure to open it?

How can you possibly dislike this video best one they made in a while 👍😊

very good explanations on boost control rate 100%

Hi Guys, could you do a quick episode on the difference between petrol and diesel turbos and how blow off valves (waste gates) affect each one. Thanks so much, love the channels and can't wait to see you guys on the Discovery Channel, been a fan since day one.

im loving this series. keep up the good work.

This is a well explained video. It gives me an idea how to eliminate the turbo boost control solenoid as a potential cause of a problem, whereby my engine suffers the occasional "hiccup' or 'misfire'. ( 2.0 Renault M9R diesel engine ). If the turbo boost control solenoid was faulty or sticking ( mine is making an odd vibration noise ), my assumption is that incorrect actuation of the waste gate valve might occur ( open when it should be closed and vice versa ). If removing the vacuum pipe at the waste gate, I interpret from your video that the gate valve will no longer open, and I am effectively running at maximum boost ( not ideal in terms of protecting the turbo from over-running and wearing out ), but I have eliminated the solenoid as a possible cause of the hiccup. Would you agree with that prognosis, or have any suggestions? There are no fault codes generated, and I know there could still be problems with one or more injectors. However, when I keep a constant speed at about 70 mph, the issue doesn't occur, but I soon as I accelerate or put the engine under load, the issue becomes apparent. Actually, sometimes the 'misfire' feels like a sudden loss of ignition and gives quite a sudden jolt. It's this behaviour and the noisy solenoid that made me think of investigating the boost and vacuum system. If the boost pressure sensor was detecting too high a pressure, because the valve was not opening at all, I would expect a fault code. However, if the gate was opening and closing erratically because of a badly functioning solenoid, perhaps this could result in a sudden loss of boost. I'm not sure what impact a suddenly opened/closed waste gate ( as opposed to a gradually opened or closed waste gate ) might have on engine performance. In some ways, this is why I prefer the simpler version of controlling boost, and not the electronic version.

I have a question, lets say my wastegate and actuator were not operating properly (staying stuck closed) causing an overboost situation under boost. By removing the restrictor pill ( in a 2 port boost solenoid) will make the car run to the minimum wastegate pressure? or will still be over boosting?

I'de like to see an episode on turbo wear. Such as wear on bearings and stuff. Maybe even how different setups wear out a turbo like single and twins and which ones put more stress on a turbo. Also just general tips on keeping your snails happy for as long as possible.

I love the GO FAST BRETT. It's so useful!

That was a fantastic explanation. Love this series

Such a simple but great video. Thank you!

So it actually builds up the pressure by first closing/fooling the 'sensor' and then opens, what makes the turbo spool turn faster. A bit like squeezing a water hose.

This series is excellent.

So what about the "double your wastegate pressure" rule when using a boost controller. If you have a 7psi Spring, with a boost controller you'll only achieve 14psi give or take. Or the differences in 3 vs 4port electronic boost controller solenoid me.

These videos are great, love the info!

That was great! Loving this series!

Please keep doing these. Alot of these.

Perfect. was wondering if I could lower boost. Now I know. Thanks.

Brett loves big boost and he cannot lie...

good video, very helpful, I did not realize thats how manual boost controllers work, very interesting! I wonder what goes on inside there

Well I mean you could always weld the wastegate shut, although I'm not sure that would be good for the longevity of the turbo.

These videos are fantastic

Nicely done. Thanks for the video.

What’s the difference between Boost pressure, boost pressure raw value, and boost pressure set point .. thanks for your time

Excellent explanation, job well done guys

This is going to sound bad! But Ive been drinking so Fuck it! But Is this guy the Cindy Crawford of Boost?

Modern electronic Wastegates have really changed the game. Now they just need to make one that has a stand alone mini controller so that any car even one from the 1980's with a turbo can change to electronic WG control without needing to also any factory computer or electronics.

Great video!!! Answred a lot of questions and theory's Iv had

I would like to hear Brett discuss Anti Surge Compressor Housings.

Boost control is good get a manual one but always fit with a pressure gauge

0:05 lmao that was crack up, not because it was funny, but because Marty randomly showed up.

That shocking made me sub!! Brilliant

pro tip,if you reach max boost on the turbo but its not enough, weld the wazegate shut (y)

Awesome VID!!! Would you be able to increase more boost if upgrading the forge internal waste gate actuator as you can change the pressure springs

I love this series already, MAAAAAAAAADD info

I have been trying to figure out why I never heard a turbo on a roll and go race with a TT Quattro but when we came to a light that fucker randomly started whining and tore me up for a 4th time. Thank you for explaining ghost turbos trick lol

Love this stuff. It might be nerdy, but it's my kind of nerdy. Please Sirs, may i have some more?

Can someone explain to me what happens with the AFR when cranking up the boost? Does the stock ECU adjust the fuel properly for the increase in boost pressure to make sure the car doesn't lean out?

The pun in the intro caused me physical pain. I fucking love it.

Good job bro your videos really helps me thanks

very good explanation

Hello, I'm seeking assistance with my BMW N55 engine, which is experiencing wastegate issues. Initially, the engine runs smoothly upon start-up. However, upon connecting an in/Hg gauge to the wastegate, it reads 5 in/Hg. Surprisingly, at idle around 700 RPM, the gauge jumps to 11 in/Hg. Any guidance on resolving this issue would be greatly appreciated.

i just realised, go fast brett=gfb lol the brand

6 seconds in and Marty already made a bad pun. I think that's a new record

So, for example, if I have a 3Lb spring installed theh 3 psi is my minimum boost level. But it could be cranked up to 6Lb with the boost controller turned up to 100%?

can the wastegate be left alone without a reference? will it still bleed some of the exhaust gas without being locked shut in some way?

wow this is interesting, so i can make my own wastegate "pressure-thingy" and put it on the dash and controll the boost from there!

I really was hoping to learn where to put the Boost Controller on a External Wastegate setup

Could that solenoid or vacuum valve make problems with turbo surging at half the throttle? I have a 2.4JTDm and sometimes it works just fine, but sometimes it surges from 3 up to 6 gear around 1800-2000rpm (turbo reference is around 2000 I think). Thanks...

A good accurate description of how boost pressure it’s regulated and adjusted, oh also a quick little lesson on how to easily full boost your turbo 100% But you didn’t explain that by doing just this your engine will b rerunning a leaner fuel mixture and will b at high risk of damage More boost needs more fuel ! Don’t try this at home. Go fast Bang

So if I run a 7 pound spring in my wastegate that means that I will have 7 psi of boost going into my motor? I’ve heard that the wastegate has to do with drive pressure

The electronic boost controller you talked about, is it similar to what other companies call a 3 port boost solenoid which is controlled by the ecu with a tune?

Very well explained, thanks.

One thing you did not include in your comments, is that the motor may only be able to accept so much boost or you may over pressurize the cylinder and cause other troubles. Be careful when increasing pressure to the motor.

so put sipmlp it acts like a thermostat but instead of working on temprature it works on pressure?

so the place boost pressure controlled by the spring...so if u put boost controller you will bypass the spring to have more boost!

Very well explained video.... Keep it up

Can you make a video or comment back. With the electronic turbos can you put and blow off value or a boost gauge connected up to it ? Pls reply

I find it funny that Australia is "so metrical" , that they say KW instead HP, but still saying psi instead kg/cm2

I’m looking at putting a detroit 60 series turbo on a 351 Windsor. How hard would it be to control the boost on something like that?