How Turbocharger Wastegates Work - Internal vs External PLUS New Wastegates from Garrett!

[@J.B.7.4]

Watching Mike, it seems he is just seconds away from laughing, but still stays serious and on topic. Love watching his lessons.

[@Jersus856]

Love listening to Mike about anything.

[@billharriss4463]

Yep, He always looks like hes about to bust out laughing!

[@nobodynoone2500]

Without a doubt, one of the best.

[@hasty9988]

Mike is why I subscribed, my man is a national treasure!

[@quesadillagames851]

i would hire him to read bedtime stories ngl

[@patinaautosalon]

And hes always smiling

[@westcoastwoodsman2289]

This guy has a crazy ability to explain things in a way that even a blockhead like me can understand. He is awesome! I wish I knew half of what he has probably forgotten about making power.

[@oldv1288]

5:37

[@firdausomar2356]

the way uncle explains made me continue to listen. wish that teachers can learn from a simple smile from uncle. thank you!

[@pops9190]

OK, hands-down you win the grand prize for the best description about this turbos and waste gates. Nice job

[@randyortiz2099]

The co-staring fly was a for sure hit! Bring him back for the next vid please lol

[@shoujiki999]

Absolutely love listening to Mike. He could talk about anything technical and it's a pleasure to take in. He has a gift of explaining things simply. You should definitely have him do an entire series of automotive explainers. Top stuff!

[@derrickallen2054]

Saying I'm glad I found this channel would be a huge understatement. 💪🏻

[@kuhak5787]

I love this guy how he share his love to cars and hangs out everything he know and how happy he is when talk

[@CITYBORNDESERTBRED]

The joy he has for this stuff is infectious 🙏🏾

[@stevesloan6775]

You're so easy to listen too! Love your straight talk style. Thanks for sharing quality information.

[@204norway]

You're metallurgy knowledge is on another level!

[@mextamacion1097]

I own 137hp hyundai with 30mpg. But i still watched it!

[@exothermal.sprocket]

Love it when people who have a ton of knowledge are very unassuming. Keep it up! And the self deprecating humor is quite funny.

[@xen5h4d0w]

This guy motivated me to go get my apprenticeship

[@MrTDM09]

As usual, professor Mike Smiles at it again blessing us on knowledge🤙🏾🤙🏾🤙🏾

[@jayski8987]

I’m drooling over that old school Corolla

[@slfrules1]

Those valve seats are a great idea!! Integrated water jacket and heat shield, that raised angle on the big boys. These wastegates are seriously well thought out. I bet those stems could use some WPC

[@DarkInstinct05]

It's the guy on my Haynes Impreza manual pulling a new SG Fozzy XT apart.. and to hear the plethora more information he has in his mind gives me all the more confidence in the manual I bought. Thanks again Mike!

[@matthewpham]

These are the marketing videos I love watching, especially when it's from Mike. In-depth technical content from someone who actually knows what they're talking about and who isn't reciting marketing buzzwords from the catalogue. Keep this going!

[@dub537h5]

I could listen to Mike all day long, what a fantastic presenter

[@friguy4444]

I subbed to this channel for two reasons. One this channel has great info and clears up lots of questions. Two This man is AWESOME! He always looks like he's smiling! Maybe he IS smiling all the time. He looks like there's a joke that he knows and it's funny and he might share it with you if you'll just join in. LOL. I love folks like that. Mind you they are often frustrated that others think they aren't being serious about something or anything because they always have that great expression of a smile on.

[@hyper8545]

Garrett always doing great things 👍🤙

[@shiloh5199]

Mike is great...loved watching his Subaru related videos, I learned a lot listening to him.

[@f0nd004u]

Mike you are so smart. Thank you for this technical information.

[@laurencismyname]

Wow, this is so good, thank you! Im amazed that the diaphram can be cooled, that is so brilliant! and that there are other metals in between to deflect heat - really clever stuff! thanks again!

[@stevesloan6775]

New Subscriber...Long time watcher. : ) You're definitely getting better with your delivery....Looking back at your first few videos.

[@RA-uj3nm]

Natural teacher. Excellent understandable info. Thanks 👍👍

[@watchingwatches2785]

This guy has the most Eternal lasting smirk I’ve ever seen

[@LINOBOYLIVE]

Mike has a resting happy face. Cool guy!

[@tireroastersgarage]

I love this guy. Such a cool dude.

[@marcomoon6062]

I dont know if i can watch this seriously. Any second he's just going too bust out laughing and thats all im waiting for

[@turbo_brian]

Mike would make my day if he said "I like big valves and I cannot lie"

[@yuno3364]

i say this all the time 😂 he looks like someone off camera is trying to get him to laugh. love the videos keep it up!

[@DDescalchuk57]

My favourite forced induction talk is when people think that a BOV is the same thing as a waste gate lol. Good knowledge coming from this guy

[@jesusberlanga4346]

I feel like I really learn from these videos thanks

[@edwinthomas618]

I could watch and hear his kind face and voice all day

[@SuperlapS15]

As always, fantastic content from Mike and the MotoIQ team. Informative, interesting, and entertaining! Thank you for all your effort, and I look forward to the next video/article.

[@motoiq]

Glad you enjoyed it!

[@jasonraynar6955]

Subscribing for the co-starring fly... And the awesome information... Thank you

[@TheTravellingHobo]

That Garret goes crazy

[@nobodynoone2500]

Great vid. Thanks for all you do.

[@MusangLaut2]

hey ive seen this one before

[@motoiq]

We accidentally published it before all the edits were done! It's slightly different now :)

[@RandomlnternetGuy]

Ive already seen this and i'll watch it again!

[@mariapantuosco2267]

This dude is the GOAT

[@zslemp]

I ported the internal waste gate and moved the actuator farther out on the arm for more leverage and was able to eliminate boost creep and hold a higher boost with the stock turbo I was using

[@motoiq]

That works!

[@blakelip3]

How much more boost were u able to hold??

[@zslemp]

@@blakelip3 I was making about 42-45psi on a BW hx35. It was way out of it's range and very hot and spicy and I ended up breaking multiple shafts and sending compressor wheels into the housing. I would not recommend going that route for any kind of reliability. I was poor and wanted to go fast at the time.

[@monikhushalpuri]

Have you heard of the holset hx35g? Apparently found on buses and stuff like that, same thing as an hx35 but with a watercooled cartridge

[@doebuck9708]

Lol. Very true the seats does really matter. Learn it while on the dyno......Great vid.

[@alltheboost5363]

I was a super broke college kid when I turbocharge my 71 Datsun. I traded my time for a broken tile 38 mm two bolt wastegate that was cracked and then took the guts out of it and put it a no-name housing and it's been in there for almost 15 years. Diaphragm still good still makes the same amount of power and no added lag.

[@missestherteen9651]

Cool who made your lip?

[@krispyliving7993]

Very educational

[@Hectorszenshopedc]

my Favorite sensible Guy

[@chensueher1393]

Very Informative, love it

[@bend185ont]

This one was great!

[@UngluckInc]

Mike is a fukn national treasure.

[@subilove668]

I want to interview the fly. I wish I could be that fly on the wall!

[@j.m.5995]

My FC came with a Hitachi turbo that had a relatively small wastegate and once I out the aftermarket exhaust I was getting the boost creep

[@Twobarpsi]

I got great boost control with a 50mm HKS external wastegate.

[@Veluisep]

It seems like the people behind the camera (if any, are making him almost laugh and he has this smile like he’s about to crack 🤣)

[@bobdobbs69]

Minor correction but for the 50mm wastegate the graph states: .32 kg/sec... not 40 kg/sec...that would certainly be an insane amount of flow!

[@motoiq]

that's a pretty major correction

[@bobdobbs69]

@@motoiq Well, you had the graph in there...

[@motoiq]

thank god!

[@GarageSupra]

I'd like to see this on Turbosmart gates next also dont forget about screamer pipes

[@motoiq]

They are very good wastegates

[@thaitanium35]

I do want to see more of Mike doing videos with his new stupid co-star fly....hahahaha had me rollin there.

[@180joz]

Hope that co star got paid well

[@derangedazrael2615]

I couldn't get 5 seconds into the video before he beat me at the "Hold your Laugh in" Game 🤣

[@kalijasin]

What happens to the exhaust after it goes through the turbo? It gets burnt up in the engine?

[@motoiq]

Flows out the exhaust pipe.

[@rogerbrooks1048]

I want that SR5 Sport Coupe behind you in the vid. It looks to be in your way. Let me know where to pick it up. 😁. I had one at 16 yo.

[@steveguest8028]

Great easy to understand video, this guy always looks like he is about to burst out laughing 😂

[@SR-fx5sm]

Another cool thing is..Garrett paid me alot of money for this. :)

[@motoiq]

We are cheap.

[@R.B_B]

Another nice video! But why not include the new but avaliable and good electronics wastegates?

[@motoiq]

We will be devoting a whole video to those.

[@weduhpeople8504]

How do you compare these to the Turbo Smart’s hyper gate external waste gate’s design? They seem to be very similar. What do you prefer a 4 port boost solenoid or two 3 port solenoid in a pull push configuration? Waiting for Garrett to release their electric turbos at the next SEMA show.

[@motoiq]

Turbosmart and Tial are excellent wastegates as well.

[@weduhpeople8504]

@@motoiq I’m using Turbosmart’s 45mm Hypergate with a 4 port boost solenoid controlled by Motec M142 to a Garrett G30-770. The only thing is the company who made my turbo kit welded the wg flange at a 90 degree angle on top of the .82 a/r turbine housing which isn’t optimal for flow. My fk8 k20c1 made 686whp 575 ft lbs on Church automotive’s hub dyno with a di and port injection full E85 fuel system with a surge tank.

[@motoiq]

As long as you are controlling boost its ok if your placement isn't perfect.

[@studly1138]

He's cool non stop entertainment!

[@digitalbilly]

I learn so much from asian guy smiley!!!!

[@baribari600]

Mike, can you educate me on why a turbo car might make the expected (spring pressure) boost when its cold, but loose a few PSI once it's hot? Boost/exhaust leak or spring relaxation, maybe?

[@motoiq]

trying to solve a problem like this myself right now, I will let you know once I figure it out. Do the basics first like check for exhaust and boost leaks.

[@baribari600]

It haven't been able to find any leaks, at least while the car is cold, so I recently replaced the spring. The new one was 8% longer and several shades lighter than the old one. I haven't had a chance to see if this fixes it, though (because racecar). The turbo kit is probably about 15 years old, though the miles aren't all that high.

[@grippgoat]

Speaking of boost creep, that looks a lot like the exhaust housing I had to port on my 05 STI when I got a full turbo-back exhaust.

[@motoiq]

It is an 05 STI turbo

[@ВладЖелезняк-н4щ]

Great content! Tell about Nissan P10!))

[@motoiq]

It's Martin's race car, mild turbo

[@Boostedm3nace]

When moving to an external, is it required to delete the internal waste gate? I’ve never had a turbo car, only supercharged. This stuff is really great info 💪 Once I put a 426 in my hellcat, I want to pick up a high hp JDM project.

[@motoiq]

Yes you don't run both. The thing is, do you need an external wastegate? They are for high power applications where an internal gate can't flow enough.

[@Boostedm3nace]

@@motoiq got it. Definitely makes sense 👍

[@Mekanik.b]

My sister heard Mike talking and she said he sounds so dry 😂 meanwhile it feels more like asmr to me

[@TheEvilTwinCG2]

I have a question and I need your specialty opinion. The wastegate had started pulsating after I’ve turn up the boost to from 4psi to 10psi. A 4port boost controller was install via haltech 2500elite ecu. On 3rd gear, boost is set at 5psi and after 4k rpm it’s set at 10psi. But since the wastegate pulsating started, boost will come alot later in 3rd gear and I’ll have fuel cutoff around 6500rpm. Check engine light will pop up showing a code for INJECTORS 90% CYCLE DUTY. It has a 450lph walbro fuel pump and 1000cc Bosch injectors.. also on e85.

[@motoiq]

What do you mean wastegate pulsating?

[@Kanadian-Squirrel]

Should have asked this question before i purchased this product but does it clear the turbo and dp on a 2015+Sti? I bought the 45mm and casing is massive.

[@motoiq]

It depends on your exhaust manifold and where it places the wastegate.

[@MrTravis789]

Do you ever use water/methanol injection fir your turbo builds mike?

[@motoiq]

Yes

[@bengepp9314]

I cant think of an actual comment that does Mike or MotoIQ justice , lets try , its not rocket science once explained perfectly , a must read Corky Bell's 'Maximum Boost'

[@Insaiyanrider]

Can you talk about back pressure for centrifugal superchargers

[@motoiq]

You need less

[@georgemanias5177]

I would love Mike to build my EJ

[@madxmaxxine6552]

Here for the fly

[@randoorlando443]

@motoiq, im not for sure if its been done or would even work on this channel but id love to see a video on how one could make a career out of what you do and how to get there. Its always been intriguing to me and id love to hear someone qualified to give a bit of there story.

[@motoiq]

It's a tough industry, its best to stay out of it, get a good education, a good job and do it as a hobby only!

[@sabz_bhp]

@@motoiq ah breaks my heart reading this 😅 but if someone of Mike's calibre is suggesting this then I suppose we should listen

[@randoorlando443]

@@sabz_bhp thats what i said man

[@angelsanchez9539]

What would the benefit (if any) of a water cooled wastegate on a mildly built , daily driven street car such as an STI?

[@motoiq]

If your wastegate was in an area that has little air flow and a lot of radiant heat it could help life.

[@JC-vc7tf]

Nice!

[@geoXedge]

Can't watch this with out wanting to see more on the g20 and the b13

[@motoiq]

You can read more about both projects on MotoIQ.com 👍

[@Elver_Galarga_jugo]

Wait, so should the wastegate pick up from the collector laid 15° in the flow of the exhaust or away? The diagram shown showed it laid away from the flow but I always had the idea that laid in the direction of flow would help with more flow

[@motoiq]

The wastegate should be leaning away from the engine, not forward toward the engine as close to the turbine housing as possible.

[@Elver_Galarga_jugo]

@@motoiq ok, so like an off ramp. Branch off in the direction of flow. Yeah, the image shown threw me for a loop on that one. That's for clearing that up

[@motoiq]

@@Elver_Galarga_jugo yes sir!

[@SataniaMcDowel]

So if i want 6 to 7 pounds of boost i need a wastegate that clocks out at 6 or 7 or i get a one with more (like a 12) and tune it down? I'm currently needing a wastegate and im super confused still.

[@motoiq]

Your minimum boost pressure is generally a little lower than the spring

[@DroidX143]

What's that tan/yellow car besides the GTR?? Looks sick

[@motoiq]

TE27 Corolla with a 2TG engine.

[@DroidX143]

@@motoiq Nice Thanks!

[@FunBitesTV]

How do these compare to tial in terms of reliability? thanks

[@motoiq]

Tial is really good too.

[@k3p060]

Would it be a good idea to install an external wastegate with an aftermarket divorced downpipe already on? Right now I’m having issues with stock turbo and wastegate solenoid creating this type of shaking of the car at high rpm. Shop told me it was the downpipe causing the issue. Have no idea how to fix this please help!

[@motoiq]

You don't use a divorced downpipe with an external wastegate, the wastegate has it's own exhaust that you can dump or merge back into the downpipe. For a stock turbo, switching to an external wastegate would be difficult and not worth it.

[@gunhound45]

Good video, however I believe you need to disclose when a video is an ad or sponsored. Even when not an ad/sponsored if you get a product for free, you need to disclose that as well.

[@motoiq]

What difference does it make, its not like we are lying about specs. Please don't have me killed or nuke our country.

[@St0RM33]

Why you re-uploaded the video?

[@motoiq]

There were spots where the screen went black and spots with no audio so we had to re do it.

[@A.R.C.77]

Awesome 😁🤘

[@TheSol115]

Between Garret and Turbo Smart, which brand is of better quality for performance and durabyliti

[@motoiq]

They are both good choices.

[@TheSol115]

and best . ? is for a garret g25 -550 . for 16 psi max . . is necesary 40 o 45 mm . 370 -400 hp

[@motoiq]

g25-550 45 is totally safe

[@TheSol115]

​@@motoiq muchas gracias mike .

[@TheSol115]

​@@motoiq hi mike ,,, why don't they look professional or in races with wastegate and blow off garret ..... i see all turbo Smart o tial .

[@rickkephartactual7706]

Do the springs lose tension over time due to the heat?

[@motoiq]

They sure can!

[@exothermal.sprocket]

All metals have a yielding point that is lowered with increased temperatures.

[@josemendez-wu1nj]

Like and need more

[@p0intdk]

So the "45mm" will fit on a 44mm wg flange?

[@motoiq]

If its a TiAl

[@andrewf8486]

Hysteresis isn’t fast response it means that the the history of what the valve did effects the next operation. So more than likely It means there is little friction, or stiction. Imagine you bent a piece of metal and you let your finger off of it. It would spring back a little towards its original position. Then if you bent it the other way it would spring back, but in the opposite direction. This is where the history of the metal maters it springs back in both situations, but where it was before the bending operation effects the direction. Hysteresis probably isn’t the best word for repeatability.

[@motoiq]

That isnt the meaning of it either, It is the drift in control response which is part postion and part in the time domain.

[@andrewf8486]

@@motoiq Hysteresis is the dependence of the state of a system on its history. For example, a magnet may have more than one possible magnetic moment in a given magnetic field, depending on how the field changed in the past. Plots of a single component of the moment often form a loop or hysteresis curve, where there are different values of one variable depending on the direction of change of another variable. This history dependence is the basis of memory in a hard disk drive and the remanence that retains a record of the Earth's magnetic field magnitude in the past. Hysteresis occurs in ferromagnetic and ferroelectric materials, as well as in the deformation of rubber bands and shape-memory alloys and many other natural phenomena. In natural systems it is often associated with irreversible thermodynamic change such as phase transitions and with internal friction; and dissipation is a common side effect.

[@motoiq]

I never though if it as an electro magnetic analogy before. I just though of it in the classical definition. "The phenomenon in which the value of a physical property lags behind changes in the effect causing it". Thank you for bringing that up.

[@Mr_Lucena]

Take a shot everytime mike says “wastegate”

[@hrdu]

Happy man