Wastegate Actuator Testing

[@mcrawfordd28]

I just want to say THANK YOU, for highlighting the part you are replacing in green or just various colors. You doing that makes it much more clear on what you're replacing, so thankful

[@jusmx141]

Great job putting everything into motion, by the way. I made the initial tech thread to encourage others to participate and build things themselves because that's the true spirit of a DSM owner. I still fabricate these from time to time for guys who lack a welder, don't have a garage, etc....but it's great to see my discoveries are still being utilized seven years later. :)

[@VelocityLabs]

+jusmx141 Thanks! It's working great, the idea was genius. I really need to pick up a welder I can use at home, I'm finding I need one more and more.

[@ronarndt6722]

Just wanted to mention that you / this test was Not a failure! It was a successful "Test and Compare" which is exactly what we needed to see. The actuator testing was a success and the compare was a success which showed us how to test and compare. It's important to test before putting into production and although the outcome was not as hoped for, this test proves again (as a reminder), that just because "it's New" doesn't always mean it's better! Thanks for posting the vid!

[@speedacademy]

Great Channel and love the quality of videos! Keep up the awesome work.

[@josepeixoto3384]

Cool video; For anyone interested in some calculations, Pressure and Force are related, and not they're not the same ; for example, 20 PSI is pressure; 30 LBS is force ; this 30 lbs force,if the diameter of the diaphragm is, say, 2 inches, ( 1 inch radius), will correspond to a pressure of (Pounds per Square Inch) approx. 30/ (3.14x1) , or 9.5 PSI; with the same diaphragm (2 inch diameter),if you need 20 PSI of boost,the force on that scale would need to be 20 x 3.14 or 62.8 LBS; but let's not forget that the exhaust pressure plays a role also, it exerts pressure on the wastegate(inside the turbo/exhaust housing),and for that reason, final testing needs to be done under load,be it on the road or on a "dyno"; in either case the boost gauge tells you all you need to know. In the video, the 20 PSI and the 45 LBS allow us to back calculate ( not that it matters much...) the useful diameter of the diaphragm inside: its area is (45/20) 2.25 sq.in. and the diameter is 1.693 in; this should be the same as measuring the OD of the actuator(smaller dia. inside the crimp) and subtracting twice the metal thickness,possibly .062,if the wall is .031. edit at 06:05 you should re-set the gauge to read in the same units; you have psi and inHg there,and 1 psi is 2 inHg.

[@robertginn2276]

Willie is an amazing welder and it's showing in your video. So proud of that young man!

[@dtrain8335]

Hell Yeah! I've been running one of those actuators for 10+ years with great success!

[@jstoned1]

Great vid! Keep em' coming! I had the same problem with my actuator and I ended up hooking up a secondary spring to help the weak MHI actuator. Just a couple bucks and 30psi was as high as I dared!

[@toddsimone7182]

That's a nice closed course. So nice it's used by everyone else.

[@RobertDIY]

Thanks for the video. I'm having a little tuning issue with my system not holding boost. I am a little confused about the waste gate actuator holding boost. My stock old actuator was holding about 12 psi of boost. When I attached a pressure pump on it, it would start to open at about 2 psi but would let my system boost at about 12 psi. I got a new actuator that starts to open at about 14 psi with my hand pump but only lets my system hold about 12 psi. Not sure how that works but I purchased stronger springs for my actuator.

[@TomsTurboGarage]

Superb!!!

[@VelocityLabs]

Thanks!

[@LeoGSX]

Nice! My FP68HTA turbo had a stock MHI actuator and also maxed out at 21 PSI till I swapped it with a HX40 actuator

[@eddietamez6926]

Tom, I Love seeing your video! Just finished seeing part 9 on the ls3! I'm only 17 I did a swap on my truck hope you can comment back or text me! 713-517-7887

[@applepie2775]

Great video, right to the point and provides simple but key insights about good and bad waste gate actuators. Thanks!

[@jusmx141]

The Holset actuator mod definitely works to revive older MHI actuators with blown diaphragms, or if you're looking to hold more boost to redline on any TD05H-series turbo where turbine backpressure is so great that the stock actuator can't pull the flapper closed as the RPMs rise. That results in the common spike/drop when running a boost controller on too soft of an actuator. ;) There are a few different pressures to the Holset actuators out there- you can't really know what you have until you test it, but I've found the actuators which come on the newest generation of HX35's from Dodge trucks (99-02) as well as some HX40's (noted by the "indented" top cover where the hose nipple is located) seem to have the stiffest springs.

[@ItsDevOps]

I have a gti mk6 gti and when I decelerate the waist gate make a noise - then bought the clip for the actuator but I still get the sound,(waist gate flutter) How can I fix it?

[@PunkkaRacingTeam]

randomly came to watch this video and when I saw that 1G, it bringed back good memories :D

[@sunlite9759]

Great video. Great instruction voice. Most videos speakers mumble and I can't understand them.

[@CeDubble]

This is a dope channel… Glad I stumbled across it

[@DarkstarDCB]

Very useful. I planned on a new wastegate for my 2G, but maybe I'll start here instead. Thanks!

[@VelocityLabs]

DarkstarDCB Yeah, the holset mod is great. There's a great thread on DSMTuners linked in the info about it!

[@sarahdell4042]

Excellent editing.

[@Darus2013]

Good old private closed roads ;)

[@ServiceMyRide]

haha at 3.16 there is a car going the other way, must have jumped the fence.

[@Zcypot]

I got terrible timing to try and test my boost issues. It is so damn hot! Car was hitting 18psi easy on my way from work yesterday, past 2 weeks it was hitting 13psi only. Replaced my Grimmspeed EBC and reset learning, hit 18psi right off the bat. This morning I barely hit just under 16psi... I am starting to think its an issue with my wastegate... Will continue to test.

[@Brandon-gv5sj]

Did you find the problem?

[@TheRacingSeat]

Great tutorial on testing actuators man :)

[@VelocityLabs]

The Racing Seat Thanks!

[@unifiedself]

Awesome video! love how you highlighted the Watergate acutator! Keep it up!

[@curlymyhero]

Knowledge + humor kills us everytime! Keep it UP! (pardon my pun)

[@extrap51]

Do you need to retune the motor after you change the wastgate actuator ?

[@cmdghost1]

This channel is going big nice!

[@machupejeffreymphahlele5243]

Proper video , thanks

[@TheRealAaronWitchey]

Thanks for the info.

[@VelocityLabs]

No problem!

[@Grahammilsome]

Great video. Been looking to see what typical pressure should open the actuator. Mine is not opening at 30psi!!

[@MJAfifi]

nice topic .. well done what about engine knock with that amount of boost? does that 26 psi include air pressure?

[@edgarmacedo8782]

i have a 3000gt vr4, builds no boost at all, and if I hammer down the throttle it starts sputtering like crazy in second or higher gear but runs normal if I don't try and build boost. could a stuck open wastegate cause these problems. I tried pressure testing the intercooler piping and have some tiny leaks but nothing that would actually stop my car from building boost. any ideas?

[@VelocityLabs]

+Edgar Macedo Could be a wastegate, but that's a twin turbo setup, right? I'm not sure if it would build boost or not if just one wastegate was stuck open. That would be a good place to start looking though. Be sure to note when the problem started. Did anything change prior to the issue? Head over to the www.3sgto.org/turbo-engines-systems/ forums and post some videos as well! Good luck!

[@Z4G.]

This is the first video i have watched of this guy. And if he is thinking about t-shirt ideas he shiould have one that says: Og, that was fun :'D I think i'll be sticking too this channel for a while

[@EduardoSilva-xe3gp]

Private close course? my big...wastegate hahaha great video Budd 👍

[@JoeWrenches]

So Good! Keep 'em coming!

[@VelocityLabs]

Thanks, I'm planning on it!

[@johndough7559]

Joe Wrenches don’t grow your hair out like him .... please don’t

[@hansiman9262]

does they always get PLUS pressure or vacuum pressure? or is it not important for the testing

[@tomislavknezovic1]

I want to know when you start the engine, in which position the westgate goes, open or closed

[@Thedeaconoftrade]

Nice DSM!

[@mickmiljevic9135]

Adding more boost is more air and needs more fuel not to lean out. Advise for a tune if your ECU can't cope with minor change. Adding boost is not hard but there are other perimeters that come into play which should be addressed and you have not informed of the consequences.

[@VelocityLabs]

Good advice! I use ECMLink to adjust my tune but I didn't mention that in the video.

[@06MPST]

Hi there, I know this is an old comment but I was wondering can running a bigger turbo than stock without a tune cause the car to blow smoke? Or is that just my motor that’s stuffed

[@holyterrortyler]

Great vid!

[@joserodz28]

Great channel, hope for more

[@TTRVision]

... how about the fuelling for the extra boost?

[@mxmang]

great video production.

[@69mustangrestro]

I have a question about my external wastegate. I know your video was about internal but I figured I'd ask. My wastegate seems to be stuck open a Crack when it's installed because a metal ring that came with it forces it open. I'm not sure if that's normal or not. I'm able to blow threw where the boost line is supposed to go and there is no resistance I'd figure it would be the oposite? Wastegate has a 7psi spring in it and my megasquirt keeps cutting spark because of over boost protection set at 11 psi.

[@abdullast3434]

I use the manual ball pump and it works. But is that mean it’s faulty? Need to be hard or something

[@dbcooper7477]

Private closed course with houses in the background... hilarious my friend. 😂😎

[@Pong-Lenis]

same quality as mcm, so good

[@VelocityLabs]

+ILIKECATZNCHEEZBURGERZWITHCHEEZSHAYAYAYAYAYAYAYAYAYAYAYAICOULDGOONLIKETHIS4EVERBUTIHAZTOGONOWBYE Thanks!

[@anthonybennallack9087]

What about vacuum stye actuator? Replaced solenoid, replaced vacuum lines, cleaned air cleaner, have no power. I have a 98 k3500, 6.5 diesel.

[@mattfinlay7476]

My wastegate leaks air from the bottom of the diaphram where the rod comes out. Does that mean that it needs to be changed? It's not meant to leak from there right?

[@Mario-et3tp]

I'm restoring a 1990 gsx eclipse and I'm having trouble boosting I'm sure it's the stock waste gate thank you

[@wildimpo]

Nice video cool info the nice DSM tops it off!

[@VelocityLabs]

@Nathan Pratt , if it's stuck, it may not be able to open up all the way either, which could cause the overboost. What does your boost gauge show? Make sure the fire ring is seated properly and that the spring and diaphragm move freely when you apply pressure to them. Also, find your specific car forums and post some pictures and I'm sure someone can help pinpoint the issue. Good luck!

[@jackass123455]

the fact he can blow through the boost feed line lead me to think he's got a diaphragm issue it should present quote abit of resistance

[@duanehearn7239]

kyle hubner

[@brayanfernandomarin]

on my evo 4 a got a boost cut because the actuator is attached to the exhaust manifold any ideas how to solve it?

[@vicky-nc3to]

Very well explained stuff in this video.... is there any way we can get the value of pressure required to open the wastegate by only measuring the weight to open it.

[@seans8286]

Great video. Thanks for the info.

[@MainyMitsu]

Nice! Was that 26 psi on the 14B?? The last pull looked strong!

[@VelocityLabs]

Thanks! Nope, I finally switched that out! It's a TD05 housing from an EVO III 16g, but JusMX141 crammed in a billet 7-blade KTS extended-tip 20G wheel in a 7cm2 housing.

[@xAjz15x]

Velocity Labs Hey same turbo setup I have. I had terrible spool and boost control problems, thought it was the Wastegate as well. I would hit full boost at 5-6k and it would spike to 23psi. I talked to JusMX and he didn't understand why I was having problems. He thought it was my flex section collapsed causing restrictions, then the Wastegate etc. After taking everything apart and adjusting the FP 18psi Wastegate with no changes I ended up porting the hot side and wastegate hole beneath the flapper. After that it spooled how it should and now with my Hallman MBC I have it right around 25/6psi. Although you just needed to swap the OEM one for the Hx40 setup to work, I wonder why I needed to do so much porting for my wastegate setup to function properly.

[@jackass123455]

Bradajay the td05 series of turbos are notorious for boost creep as the wastegate hole in some cases just simply can't keep up with the flow requirements.

[@karthiks6326]

Can we get boost by adjusting waste gate by moving the adjustment bolts away from valve

[@malagutino]

I have a modern Turbo Engine with n75 Regulatorsensor and wastegate, But a stiffer wastegate dosen't work anywhere, the software is closing the trottlebody automaticly

[@mbordeaux2590]

Loving this video man! Subscribed

[@numinous4789]

MBC, eh? Dang. I'm spoiled with a 3-Port EBCS in my Mazdaspeed 3 running in interrupt mode. Our stock EBCS is 2-port running in bleed mode. Have you tried adjusting in more pre-load on the WG actuator arm?

[@RaxDimmu]

Isn't this going to damage the turbine? As far as I know, the Wastegate serves to unload the turbine in case the pressure reaches the maximum allowable value?

[@nasri-kiro2616]

My actuator is not moving..and my boost is infinity..what is the problem

[@inayatgani6161]

Hi bro, I have 2JZ with Ar60 turbo, is giving me problem on Westgate the turbo is not opening what u suggest ? Thanks

[@Tudds]

Great video. Thank you

[@boosted2.4_sky]

Awesome vids...well thought out and informative...(Sheesh..sounds like I'm grading an essay...lol).. Keep em coming..well done.

[@jonathan11b60]

My wastegate is opening fully with 5psi and that is oem Mitsubishi is that a sign that it is a bad wastegate? Trying to figure out if wastegate or bcs is going bad.

[@stephenotoole1370]

Hi my waste gate is working sometimes and then other times it goes into limp mode on a merc ml 280 can it be fixed or do I have to get a new one

[@mdbadalmiah6808]

Thank you Sir

[@Aaron_Voltz]

Do waste gate actuators fail over time because of heat soak \ heat cycles? And would heat wrap of the exhaust side of the turbo and down-pipe get the waste gate actuator to last longer?

[@0TapMyHed0]

You don't explain why there is a difference in the strength of the springs and why it makes a difference.

[@dgb5820]

Great video

[@guilhermefelix1565]

Hello Velocity, I have a problem, my car has revo stage 2+ but the turbine above 4,500 rpm, can not handle the pressure, so 1.5 bar drops to 0.8 bar. I've changed the spring and membrane of the wastegate, but the problem still persisted. Do you think the spring load is poor?

[@SaucyTuRkLeBiRd]

Agree with tom. So good! subscribed!! btw tom loving the miata build!

[@ginoc1984]

Just a question: I'm about to install a heavier Spring tension in my waste gate actuator too. My car has had an ecu tune and doesn't hold the requested boost. Again though remembering it has had a tune for the requested boost.. In this video you have increased your boost (air) but have not mentioned fuel to compensate at all. Have you taken this into account somewhere or is it generally compensated for somewhere else? Limited understanding on modern systems but from what I do know this can can run the risk of leaning out and frying a motor... Can someone clarify. G

[@VelocityLabs]

+Gino Cella Yes, you will likely need to adjust fuel for the new boost. I tune my car on ECMLink for DSMs, so it's really easy to do. You can add boost and just keep an eye on your Wideband. If it is running lean, just stay out of WOT until you get the tune updated. Good luck!

[@jackass123455]

what sort of boost controller are you using. I'm aiming for 20psi on mine ATM I'm running gate pressure which is 10PSI. i'll be controlling it via the ecu i'm running (an aftermarket unit) and a 3 port solenoid theoretically this method of boost control via the 3 port solenoid should be capable of bleeding off all the pressure going to the gate

[@ovidiofs1]

Y la gente le gusta ajustar ese wastegate y para que sino sirve, lo q hay q hacer es cambiar el turbo completo... Pretty good video

[@oldstyl66]

I'm trying to diagnose a possible wastgate problem. When I'm in 6th gear (automatic) and hit the gas and downshift to 5th or 4th, I lose power but RPM's increase. Just replaced the catalytic converter, no luck there... Any suggestions?

[@roadwarrior6810]

Cool informative video.

[@hosseinvs2224]

What should i do IF: I'm having turbo flutter (tututu) with OEM wastegate, and the thing that confuses me most is that the (tututu) only comes when under 2000rpm (like releasing gas pedal in traffic?)

[@Kevin-ty4im]

Awesome video, good editing, good speaking. 1 quick question, I am feeling a leak on the line coming from the turbo/Intercooler hose into the wastegate. So I believe only the exhaust pressure is opening up the wastegate. This is causing an overboost in higher RPM of 3-5th gear. To prove if this is a correct theory: Do lower gears open the wastegate from more exhaust pressure and higher gears from more boost pressure?

[@VelocityLabs]

***** Thanks! To answer your question, longer gears (3rd, 4th, 5th, etc) have more time to build boost pressure, so you can see higher psi the longer your pull is. Fix that boost leak and it should help!

[@Lessthanthreeedm]

How to tell the difference between pressure and vacuum controlled actuators?

[@earpig]

what shampoo do you use

[@franzkygaddang7445]

We installed a turbo on my truck but the turbo doesn't have a wastegate actuator so i hooked a return spring to keep the wastlegate closed. Will that have a bad effect on the turbo or the engine?

[@jimroadhers]

great video. you know what your taking about, anyway. im getting a 2016 jetta tsi turbo and i was curious of a one second hiss sound during kinda hard accel. is this something i should i should be concerned?

[@user-zd8vg1nl5g]

As I’m driving my waste gate duty is at 30-90 % so I don’t hit target boost while I’m cruising unless I’m at WOT, could this be my issue?

[@BryBryProduction]

awesome video! I had a question. What causes a wastegate actuator to be stuck open? I have to replace mine along with the diverter valve. so these two made my car throw a code as well for the boost pressure sensor high signal! Hmm... any thought are very much appreciated... I Drive an MKV 2007 Jetta GLI 2.0 Turbo FSI Engine. Thanks Again Man!

[@benjay2985]

Good old Raw Boost! :) Any boost controller at all? or just the WG pressure?

[@bullridermusic2054]

Wait I thought the wastegates job is bleed off exhaust gasses so it doesn't over spool the turbine wheel why are you talking about boost pressure?

[@juniorkhalifaable]

I’m wanting to upgrade my oem wastegate on my 14b. To a Kinugawa 18psi. Will I risk any potential harm to my motor being that I’m still untuned and no boost controller?

[@uiolkijhgh]

Iam running 22 psi from a flashed map but once i bunged up the dv holes and it was an animal Do i have a bad actuator its a 2000 audi tt 225 model thanks

[@ksingh631]

hey how do you hook up that guage. I'm thinking if I can put one on my big truck I might be able to figure out my loss of power problem. my mechanic switched out my actuator with a 21lb one. but I hear other truckers talk about 48lb boost. I don't see 48 lb happening with a 21lb actuator. correct me if I'm wrong.

[@kevinsouden7708]

Hey man question would that give you more even if the car comes with 8psi from the stock turbo?

[@x-centrikindia5923]

Couldn't you open the wastegate and swap springs ?

[@viperflyer]

Running higher pressure would reduce fatigue life of plastic and rubber seals

[@epoxeclipse]

What turbo is that 16g? I have what I think is a 14b and it has 12 blades on the compressor side.

[@BlaastMaster]

howzit, recently I blew my turbo on my 1.9tdi VW Polo , I had a new one installed, but now I have extreme turbo lag, in first gear there is no boost at all, and my car PING's when I reach 3000rpm's, but when I change to second gear , the turbo boost's normal , up to 6th gear there is no problem as long as I keep the rpm's above 1800. otherwise the car smokes and gets nowhere , do you think that the actuator needs adjusting ? thanx

[@VelocityLabs]

+BlaastMaster That could be a lot of different things. Could be the wastegate actuator, could be a boost leak or even an exhaust leak. Check out some TDi forums like this one for help walking you through troubleshooting. forums.tdiclub.com/ I would start with a boost leak test!

[@jlmedia2679]

Im a little late to this video but i think im having a waste problem but dont know if its the spring or the actuator. From my tuner im supposed to reach 20psi in full boost and its good in 1st and 2nd. But when i go into 3rd and hit full boost i begin to overboost to about 21psi which is not good. Its a 2.5l boxer with a 4speed. Any help would be much appreciated

[@ThisIsNot22]

How do I do a boost leak test if the acuater opens at 10psi..

[@ramrajjiwanand1102]

watch out mcm

[@ThisIsNot22]

Do you have a email. I have a 191 gsx and when i do a BLT i can only get it to about 10psi before i hear a his near the turbo. Almost like a quick bov.. what should i do?

[@chuckcafiero4546]

can-you-adapt-a-2002wrx-with-a-TD5H-20G-to-run-a-dual-port-waste-gate-actuator?

[@chonghan1519]

where did you buy that boost leak tester. and do you know if it will work on a evo 8 stock turbo. thanks.

[@dannylebarron6947]

I'm new to the dsm world. Couldn't get my td05h to boost over 5psi. I parked the car 45 mins from my house in storage. Took one last look and seen that the bar connecting the wastegate. Was not connected to the turbo. Dumb question but could that be my problem? Also noticed that the pervious owner took off the boost silenoid. But it has a hallman mbc. Any help please. Thanks

[@VelocityLabs]

Yes, if that bar isn't connected then nothing is holding the wastegate flapper shut. I'm surprised it made any boost at all! Get that hooked back up and you should be good to go.