Everything You Need To Know About Wastegates!
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- Опубликовано: 8 июл 2024
- What is a wastegate? What does a waste gate do? What size waste gate should I get? Do I need an Internal or External Wastegate?
All of these are solid questions which all deserve solid answers! So I have been asked these questions time and time and again and you know what? They deserve their own video so let's break it down, everything you need to know about waste gates. Keep In mind that everyones builds will be different and consulting or talking with your tuner is always suggested but this should help get ya by most of the time.
Happy building my friends!
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Tanner Smith
Smeedia
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Parts Used:
Tial 38mm EWG: amzn.to/2TXPmfx
Tial 44mm EWG: amzn.to/3kbapGp
Turbosmart Comp 40mm EWG: amzn.to/350eubN
Precision 39mm EWG: amzn.to/3l4abSD
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Can’t thank you enough for the time and knowledge you dump into this channel. I’ve only owned my Subie for about a year, but with your videos and guidance it has helped me in my aftermarket purchases and given me the confidence to do almost all of my mods myself. Once again, thank you!
Just glad that the videos have been helping! 😁🙏
Dude I love ur content so much I recently tracked my 2009 WRX. It only has a few mods but your how to build Subaru’s reliable video has given me a clear mod path that I really appreciate!
Sounds like a blast and appreciate the support my friend 🔥😁
I found this channel exactly when I needed it! All of the information I’ve been getting from you is going to help me turn my daily driver WRX into the car of my dreams!
Glad to hear my friend 🤝🥳
Been waiting for this video for while thank you so much 🙌🏼
Anytime! Glad I could get it knocked out 🔥😁
Literally just built my motor with forged internals and I can honestly say I couldn’t b happier to see u made this video I’m shooting for 450 wheel whenever I’m done with the build
Eyyyy, how'd the engine build go?! 🙌
450 with Forged?? You do know you could easily push 700 to 800 safely with forged components and have a Monster 👿 car on ur hands!!!
Recently just picked up a 17 wrx and been watching a ton of your videos. Tons of great info 👌
Eyyyy, congrats on the car and glad the videos are helping 😁😁😁
Great videos for sure. I had an 03 bug eye back in high school almost 20 years ago and just bought an 05 blob eye two weeks ago. I missed it so much haha. Congrats on the car.
So informative as always! I could listen to you talk about cars all day haha.
😁😁😁😁
Always a pleasure to watch!!
😁🔥😁🔥
My dude... you have so much knowledge lol it's like you should be a college professor teaching us about Subaru technology. Half the time I have NO IDEA what you're talking about but I'm LOVING every bit of it!
Haha well glad I can share the knowledge my friend! 🔥😁
Like watching these info videos after watching the install videos. Comes full circle. Thanks!
Never a bad idea to throw them in to cover how they work or why you'd need one 🔥😁
@@Smeedia had a general idea of why and how. This just added info
Awesome video, my dude! I've always wondered about the functionality of wastegates...
Thanks my man! Glad the videos helped and hope your doing well!
Thank you! Another helpful video as I go down this Subaru modifying road.
🙏🙏🙏
Awesome vid as usual! Definitely informative! Thank you
Thank you! 🔥😁🔥😁
When it comes to wastegate spring sizing you typically want to put in a size that is 60 percent of your target boost pressure that way when the tuner is adjusting your boost pressure it requires a larger percentage of duty cycle giving him better control. I.e. you don't want to add 5 percent and boost pressure rise 7 psi you want to add 20 percent and get 7 psi. Remember the tuner can double whatever the spring pressure is in the Wastegate.
Thank you for the added info 🙏😁
But I am running 17,4psi of boost with standard 5psi spring in oem westgate...
Thanks for all the information my dude
Anytime my man! 🙏🙏🙏
Thanks man that helped out a lot I'm actually going with an external wastegate setup on my blobeye
Glad that it helped! 🙏
Great video like always...
Man thank u for the breakdown!!!! This is my first subie n their is so much learn!!!! Thanks!!!!!
Have an abundance of videos out, glad that it helped and congrats on the car 😁😁😁
This vid definitely helped me with my build. Once again Tanner, well done.
Glad the video helped my friend! 🙌🔥
People always said that the internal wastegate is better for my legacy, after watching this video I have a little project on my hands. Looking forward to installing the wastegates on my twin scroll.
Sounds like you've got a fun project ahead 🙏🙌
thanks smeedia for taking my suggestion
🔥😁🔥😁 I got you 🙌🙌🙌
The like to un-like ratio is amazing! Great video!
Thank you 🙏😁
Great video, lots of facts. Thank you
Glad it helped 🙏🙏
External wastgates sound amazing in my opinion.🤘
They sound gnarly 😍🔥
Absolute A1 video, very educational...
Thank you 🙏🙏
As long as you’re making videos Tanner I’m subscribed ✊🏻✌️👍🤚🏻
Never stopping 🙌🙏😁
Love this guy videos
Thank you 🙌😁
after having my turbo kit done for almost a month. car was dumping all exhaust out of the dump tube. no boost. loud abnoxious noise, all to find out i forgot to put the firing ring inside the wastegate. lmao glad i watched this video thru and saw you do that during the process or i would still be trying to figure out why this car doesn't run after spending 4900$ on a turbo setup! 😂😂😂
This helped tremendously! For just good reliability on 2013 sti stock turbo do you think the 44mm Tial-MV-R is a good choice?
Mods:
TGV delete
Secondary air pump delete
Cobb intake
Invidia catless downpipe
Type one racing exhaust.
I know you get a lot of repetitive questions I'm getting my car pro tuned at drive auto sports in Everett and was going back watching your videos and came across to late🤣
The 38 would be a better option since you'll be running around 18-20 PSI
And your good! 😁🔥
Very clear and easy to understand information, best wastegate video I ever seen by far (I seen dozens of them) thanks!
Anytime, glad that it helped! 😁
Thank you Tanner...latest subscriber!
Appreciate the support 🙏😁
Loving the new thumbnails
Trying to spice them up a bit 🔥😁
When choosing a spring pressure, is it logical to add your desired boost to the exhaust pressure to get desired boost when you're bench checking, otherwise have the exhaust pressure blow your wastegate off the seat prematurely?
Quick question, I’m trying to put together a compound turbo and I’m thinking of running an internal wastegate on the smaller turbo but an external wastegate on the larger one, does that sound right or dumb?
Great video and full of good knowledge 👍
It's like the more modifications you do, the longer your beard gets. The longer your bear grows, the more you're like a Socrates for the car community. Keep it up Tanner!
🤣🤣🤣 lol its funny when I save you can watch the bears grow back after like 10 uploads 😅
Thank you! Do you mind making a video on boost leaks?
If I get the opportunity to test one of my cars for boost leaks I will 🙏
If I don’t want any gains and want a 38mm Tial ewg just purely for sound and to eliminate my thought of boost creep can i do it without getting a 3rd pro tune? Just for sound
Hey. Thanks for the info. If I have a completely stock 21 WRX except for a Big SF intake and Cobb AP: everything else under the hood is stock. I run 93 Octane and a 93 octane/Regular waste gate OTS tune. If the car seems to sputter a little here and there: Should I try the high or low waste gate tune? Is this safe on a stock waste gate? Can I run it indefinitely? Thanks in advance.
Miss the live streams great video !
One going down tonight 🔥😁
Hello 👋🏼, I have a 13 WRX and looking forward to ordering the PLM Power Driven Subaru EWG Up Pipe with Turbosmart WG40 Gen V Wastegate kit…I’m currently on stage 2+ 93 with accessport stock turbo etc…is there any other additional parts to installing the ewg before the tune.
You'll need the iWG block off bracket and a boost control 😁
@@Smeedia thank you man I appreciate the response 👌🏼 happy new years
Happy new year Manny!
i went for twin 50mm on my 427 LS 98mm Turbo
So I'm going to be running twin GT35s on a 5.3 LS is 44 mm wastegates too big and 50 mm flow off valves mine is going to be a blow through setup and the max boost will probably be somewhere between 15 to 20 lb.
All right guys, I have a 2013 automatic 1.4 Cruze stock besides the air filter. I don't want to tune my car because I have 174,000 mi and it is my daily. Can I get a wastegate aftermarket is it worth it or not and what kind.
Looking for some help, please… I have a stock turbo with the cobb off the shelf tune. What should my waist gate duty cycle be right now? I just read 0.00 for wastegate duty and I feel like I have some inconsistent boost going on.
18mm diameter gives you 9*9/3,14=254,34 area external 38 diameter 19*19/3,14=1133,54 which is 400% more except that you are spot on.nice job.
What formula did you use? I went off of total circufrance vs area. Guessing πr² 👀
Thank you! 🙏🔥
@@Smeedia thats the formula and this the reason why you need to calculate many factors when you change from internal to external since the gap is huge and the responce time of the external does not allow you to maintain the desired boost level stable cause external have more inertia since it is heavier. nice video again keep on the nice job.
THE GOAT HAS POSTED! Love ur vids homie! Keep this shit up :)
Thanks my man! Always more to come 🙏😁
@@Smeedia Just shot you a dm on insta!
I'll swing through them in a bit 🙏😁
What if I run a stage 2+ tune on 3 inch catless on my subaru but i dont want it to run lean?
So if I were to add an external wastegate, do I have to remove the 3port boost controller since it interferes with it?
That’s it I’m buying an external wastegate. Which would be quieter a Tial or Turbosmart EWG? 2004 wrx with an ebcs and 16gxt
So would you recommend the 38mm ewg for a blouch 1.5 xtr on a 21 sti?
What mm waste gate should I get with my fp black? My whp goal is 400 to 450. And should I get 8cm or 10cm? I do want top end power for the street.
Thanks for the content! I do have one question... Is it possible/is it a good idea to run an EWG without swapping out the intake manifold? I was thinking of running IAG UELH, Up pipe, and EWG on a 93 tune with DP, TMIC, Intake, and fueling upgrades. Open to opinions...
Totally fine to do that with the stock intake manifold 🙏
Sic hoodie bud 🤙
Ohh ohh wastegates 🤙👻
🔥🙏🔥🙏
does putting ewg and up pipe add horsepower?
Great content new subscriber
Thank you and appreciate the support 🙏
So if I have a 44 mm turbo with a 38 psi spring will I have to order more springs or will I be fine
I would change the spring, that is a stiff spring for pretty much all applications. Typically I run .9 Bar (13ish) lb spring
Tanner, do I NEED a ewg. Living in the pnw makes me wonder cause of the weather. I currently have a stage 2 2020 sti. I want to add fuel pump injectors stumble kit and a intake should I add ewg to the list ?
Are you going to be using a Catted or catless downpipe? 👀
Hold up that lighting though is fire!!
Eyyyy, thank you 🙏😁🔥
@@Smeedia love seeing the upgrade in quality over time. You’re doing awesome brother!
Thank you! As I learn more I try to incorporate it into the videos 😁
So do I not need a 3 port boost controller with a ewg. Just trying to get the most out of stock turbo/motor on e85 for now until I build it down the road. (13 sti)
Yes you will 🙏🙏🙏
You’re the best
🙏🙏🙏
Do a d series turbo build
Is there recommended mods to go with a ewg? Picked up a 44mm tial just because it was a good deal lol currently only have a turbo back with a tune.
Boost controller, up pipe, header, downpipe, intake, fuel mods. Not really needed u til you start to see boost creep with the car. But even a stock turbo will benefit from one
When is a good time to get a EWG? If my subaru is still stock, i would assume I wouldn't have to do it till i get more power flowing, right?
Once you jump to a larger turbo would be the ideal time 🙏
I’ve been watching a lot of your videos on how to make the sti 300-500 hp and in one video you said if you put a catless down pipe I would need a EWG to minimize boost creep? Would I be able to use that on a 2018 sti stock turbo?
Yes you could, but no one can really tune for catless anymore
So is it worth getting for a stock turbo set up sounds like yes but just making sure I understood exactly what you are saying
If your tuner and making more power an EWG is a good option for a stock turbo 🙏
Getting a SF intake with AP for my 2020 sti. What waste gate should I run ? High or low ?
With OTS Tunes I always suggest lowb
Hey bro I have a 2011 Subaru sti my engine blew up but I don’t know if I should go oem pistons or forged, I’m gonna go for a daily tune and probably won’t push it as much and i have a down pipe with a tomei exhaust what setup do you recommend? I just don’t want to blow up my engine again 😭
Just looking at staying around stock power? 🤔
Hey I just came across this video, I was wondering if I NEED a new wastegate or can I just keeep the stock on the vf52 turbo on my 2011 wrx sedan, I have a ton of modifications including bigger top mount, injectors, fuel pump, catless dp, intake turbo inlet, boost controller, bypass valve etc. and i’m gonna be tuned to make 340 wheel hp soon on the stock turbo. can i keep the stock wastegate?
You can but with a catless downpipe your subject to boost creep I'd suggest a plm up pipe with a tial 38mm ewg 🙏
Could you use the killer b headers with the 2 wastegates on a WRX with a stock turbo?
Yes you can 🙏🙏🙏
Nice man . But can you go ewg on stock turbo ?????
Can you run an EWG with a stock turbo on a 2020 STI or do you only need an EWG with aftermarket turbos
You can use one with a stock turbo 🙏
Waste Gate knowledge, oh yeahhhhh.
💪💪💪
When u search for wastegate info and smeedia is the first video to show up
Eyyyyy 🙌😁🔥
1 question I have, do you have to weld the internal waste gate shut in order to use an external? That’s what It looked like in the second picture you showed? Otherwise how else can you do it? Buy a new turbo?
No you don't, they do make a bracket that keeps it shut as well 🙏
Well inform video. Literally was shopping around for a new uppipe and EWG this pass weeks. So no need to get 3 ports boost controller if I’m going EWG?
You still need one, the boost controller is what sends the signal to the wastegate to tell it to open or close. But you technically don't need one but then you can only run spring pressure off of the wastegate
@@Smeedia okay. In the video you stated it interfered with the wastegate which make it sounds like it’s a lag and hinder to it, that’s why I asked.
No worries, its an international international to keep the wastegate closed until you hit your desired boost pressure
Great video as always 💪🏻 Is there any sound difference between the 38mm and 44mm? Either pitch or volume ?
Nothing noticeable IMO my old 44mm was just as loud as my 38mm is. However the pitch is slightly diffrent
@@Smeedia thanks a lot , I have a shop building my car currently and they got me a 44mm and I was worried it wasn’t going to be as deafening as the 38 is lol . Makes me feel better
@@F30__Zay does your 44mm sound as good as your 38mm ?
Can we still do external wastegates even with green speed if you are still on Cobb’s tuning platform?? I need to know because I need that external wastegate life!
Can you explain the different sounds of a ewg? The 2015+ wrx with wastegates sounds like a two tone note but on some STI’s they have a one time note. How do I get the two tone note on a sti with a wastegate? I hear some sti with different size wastegates but some sound different. Is the the tune or the spring rates that affect the sound of it?
Wastegates size, Boost controller, the tune. For the 2915+ they use two wastegates where the STI only uses one. The dump tube also can play a factor 🙏😁
Hey brother. Can you do a video for Maintaining waste gate and turbo. Can re-port wastegate flap?
What do you mean by maintaining?
Informative as always and for sure answered my questions for the wastegates. But I have one more for you sensei, what type of turbo inlet hose would you recommend?
Whats the turbo? 😁
@@Smeedia stock turbo. As well as stock location
Perrin 2.4" 🙌
@@Smeedia dope. And for the boost controller all I need to do is drill it in correct? There has been no easy explanation for placement on the boost controller
Most of them will just bolt right up in the stock location
How much boost can a stock wrx handle with an intake, should I be running low wastegate? I hit 18-20 on normal wategate
Which WRX?
So this helps me with a stock motor rn
Doesn't the blow off valve do the same thing if you keep 25lbs springs if the turbo went past wouldn't the extra just bleed off when the spring opens up thus eliminating a need for a waste gate?.
A wastegate will lower turbo shaft speed, and controlling boost with a BOV leak will raise shaft speed at the same boost level. Not saying there aren't instances to do it, but not ideal for regular old boost control
So I can put this on my wrx only had catless dp to the cat back and an intake and I tune it I’de be straight👀?
Yes you can, if your catless is suggest using the Tial Set up 🙏
How about for diesel turbo waste gate bro... How many psi is for daily use..
Dig the artic camo hoodie; is that on your merch store?
That one is not mine 🙏
When you are running an external wastegate on the stock turbo do you need to weld the internal wastegate shut or modify anything with the internal wastegate? I plan on running a catted downpipe btw.
You can qeld it or buy a bracket to keep it shut 💪
@@Smeedia thanks!
Catless would be better with an EWG
Always so helpful bro, question; currently running a catted invidia DP with a Cobb intank Etuned by STIMIKEY I was wondering would it be helpful to run a external on my 2020 sti? If so which kind you recommend? 😄
Love the vids bro!
Definitely will always suggest ewg, preferably for stock turbo I'd suggest the tial 38mm ewg
@@Smeedia thank you sir!! And do you know which EWG to go with?? Brand wise :)
Tial or turbosmart 🔥
I like that camo hoody where'd you get that?
Its a TMG hoodie 😁
Awesome video. Spreading the knowledge to noobs like me lol. I do have a question though. Somewhere down the line I want a bigger turbo. Thinking of doing ELH and an up pipe. Can you do an external waste gate with a stock turbo? Not sure if it matters but I have an 08 WRX
Yes you can 😁 they make a bracket to permanently keep the IWG shut so you can use an EWG on stock turbo 😁
@@Smeedia niiiice. Thanks for the info. You’re the man
Can you go internal to external?
So real quick, if i want to go ewg, do i have to remove the internal waste gate by switching the hot side or can i keep both?
You can keep it and just weld the IWG shut or get a bracket to keep it shut
Thanks for the fast reply!
Anytime 🙌
I’m Running at turbo smart wastegate 14psi spring but only making 10psi no boost leaks is normal my tuner is say this isn’t normal but the company I got the turbo kit from is saying it’s normal to make less than what the spring is rated for
So what if I have the stock turbo what size wastegate should I got with?
I would use a 38mm
Can I run killer b headers with ewg on my stock turbo for my 18 wrx please help
Yes you can 🙏😁
Or have a boost control
I’m having boost problems after a intercooler pipe popped off after fmic install on a Subaru lgt. I’m only hitting 8 psi now instead of 15 psi. Tested for boost leaks and there was nothing, could this be a waste gate problem?
Could be, are you IWG or EWG?
@@Smeedia iwg I believe
I wouldent imagine an intercooler pipe popping off causing that but could be IWG issue, Boost controller or a large vaccumm leak. Are you protuned or OTS?
Hey Smeedia wanna come to Canada and build my sti to a stage 2?
Also what psi should my stock 2017 sti hit at full throttle. The turbo that is.
Around 22PSI max and can't say ive ever been up to Canada 🔥
@@Smeedia if you wanna come let me know. I would love for you to build my car a little.
Are different downpipes necessary for different wastegates?
Not really, the wastegate goes before the turbo. Only time a downpipe would change is if your routing the wastegate back into the downpipe
I just bought a 2020 STi and I'm planning on doing a bit of work to it, but nothing crazy, mostly just full exhaust, cold air intake, intercooler, stuff like that. I'm not planning on trying to get crazy power out of it, but should I install an external waste gate is that a waste with the stock turbo?
You can install one with stock turbo but TBH it's not needed if your just doing some basic bolt ons 🙏
@@Smeedia okay cool. Is getting a new turbo the point where you'd need a new waste gate? I want to increase the power a bit, but I'm more interested in doing suspension work to the car.
Yessir, once you swap turbos is really when you NEED it.
@@Smeedia nice. Thanks man. Great video by the way.