hey mate,
just got my freshly built SR tuned. It has a GT3071 on a cheap stainless high mount manifold and the older ultragate 38 bolted on the side of the manifold just below the turbo/mainfold flange is. We ran 400rwhp on 18psi but want to run less boost as dont want to race with that much power.. We disconnected the avcr n just ran spring pressure with is 14psi when the gate opens. AS the engine revs, the boost creeps up to 18psi.
Would it be a flow issue that instead of the exhaust turning 90degrees out the gate, it prefers to head through the turbine? i have the .82 rear housing, would restricting the dump more create more backpressure so the gas prefers to head out the gate?
Also my tuner said if its a flow issue, might have to weld a port for gate to come off the exh. housing?
cheers
josh

Josh,

It could be a flow issue due to the springs in the wastegate. Before looking into bigger gates or changing manifold designs, try putting a low pressure spring in it such as a 10 or even 7 PSI. If it still goes to 18 PSI, then it is definately a flow issue in which case the wastegate could be at a position where it does not have control over the flow of exhaust. It is always good to have the flow directed to the wastegate on a angle from the manifold.

OK so i was thinking to create a say 200mm pipe coming from the gate flange on the manifold out and up near the rear of the turbo and bolting it on there..
so your saying that its good to have the gates inlet of gas on a angle? even a 90degree angle like i have got?
If my extension pipe doesn’t work i’l try a different spring rate.
Where can i get a 10psi spring? Do i need a little kit to replace seals or anything aswell?

Josh,

Check out the instructions page on the wastegates. You’ll find diagrams for ideal placement interms of angle to the flow. Mounting the wastegate perpendicular to the direction of flow of exhaust gasses does not promote good flow through the wastegate. You can purchase the spring from your local turbosmart dealer. Go to our dealers page to find your closest one. The part number is FG-WG38-SP10. You shouldn’t need to change anything else, just carefully remove the top cap and replace the spring.

what springs do i need to run 28-30+ psi on my ultragate. My turbo is rated to 35 psi it had a .63 on the exhaust side and a .70 on the intake side
thanks

Mike,

The ultragate has springs that can get up to 21 PSI. To get more than 21 PSI will require a boost controller.

Hi. I have a 38mm Ultra-gate on a 96 Libero GT with a Tdo5 turbo and when I first put the wastegate on the car the car started only boosting to about 2psi so I put a boost tee on it and got it dyno’d to go to 15psi. The wastegate is very quite and im not sure if it’s working properly as it doesnt seem to do anything until 12psi. Can you help?

Hey, I just wanted to let you guys know that you make an outstanding line of products. I have been running your Ultragate 38 on my 2.5l STi and I couldn’t be happier with its performance. Keep up the good work!

Vicki,

What wastegate springs do you have in your Ultragate? Depending on the boost controller, which in this case is a Turbosmart boost Tee, the wastegate shouldn’t do anything until it gets closer to the target boost pressure. This is due to the gate system inside the boost tee as this aids response of the turbocharger.

Elliot,

Thanks for the comments, we are always glad that our customers are happy with our products.

Do you know if your springs for your 38mm will fit a Tial 38mm?

Shaun,

No our springs are not compatible

Hi Ive upgraded my 2005 xr6 turbo and the waste gate is no good anymore as the car sometimes over boosts and the blow off is louder than before, do you have any products which i can do a straight replacement from the stock wastegate to a better wastegate

Ilche,

Have you got a boost controller on the car? When you say overboost, do you mean it spikes and then goes to where you want it, or does it keep on rising as rpm increases? The BOV should be louder if you have upgraded a few things such as boost. We don’t have any bolt on wastegate upgrades.

no boost controller on the car. the boost does spike it goes to 18 20 Psi then drops back. I realise the boost will be louder though just enquiring whether you had any products. Is changing the wastegate actuator hard or easy?? do you need to take the turbo off??

Ilche,

There should be a standard boost control solenoid connected to the wastegate actuator. It is possible to determine whether you are running out of wastegate flow by removing the lines from the solenoid and running the pressure source from the compressor cover of the turbo straight to the actuator. This form of hook up will show you straight away it there are control issues. If boost is controlled with this method, than it is the standard controller which is giving you the spikes which in some standard cars is normal to give the car a boosted feel. A boost controller like the Eboost Street or Eboost2 can be used to give a constant boost pressure just as long as your wastegate is capable.

The actuator can be easily changed depending on the vehicle without removing the turbo.

hi i’m currently building an rb30det for my laurel. im going to be running a twin scroll garret t04z turbo, so ill need to fabricate a manifold to suit. i just wanted to know, if i ran 3 cylinders to one side of the exhaust intake on the turbo and the other 3 to the other, could i use 2 38mm ultrgates to control my boost? aiming for around 400kws

cheers

Luke,

you could do it that way but it would be much simpler to use one larger gate like the Progate50. You will save money on the cost of fabrication as well as not needing to buy 2 wastegates. It will also be easier to plumb your boost controller.

i just wanted to know if it was possible because ive already got the wastegates.how much harder would it be to plumb in a e-boost street controller? i know using 2 is abit roundabout, but if done correctly could i still expect stable boost control?

cheers

Luke

yes it can be done, its not that its harder, there just more lines involved. Check the e boost street instructions for the hook up method. Treat the system like an internal wastegate setup, just hook up the lines to the bottom port and vent the top ports of the wastegates. The e boost street is also capable of controlling 2 solenoids which will aid in response and control.

Hi,
Im upgrding my set up on my SR20 and have a T3 flanged Garrett GT30R, 600hp turbo with a .63 rear housing, with 890cc injectors as my fuel feed.
My question is can your new ultragate 38 keep my boost at around 15psi and a max of 24psi without spikeing,overboosting or anything like that or would your new 50mm gate be the better option? I just want to run a turbosmart tboost as my boost control running threw my Haltec(With switched power settings)and make around 400rwhp on high boost and maybe 300rwhp on low. Help would be greatly appreciated.

Nathan (Club High Rollers)

Nathan,

You would be best going to our Hypergate45 with a 14PSI spring for your setup. The Ultragate38 might be a little on the small side of things whereas the Progate50 would be a little big.

Tech Support,
Thanks heaps for your help. My major head-ache has now been fixed. Cheers.

Nathan (Club High Rollers)

Hey guys, just fitted a pair of 35/82’s with .82 turbines, as rear mounts, on my LS2 Maloo. Only want to run 6-7psi. Will a pair of your 38mm gates do the job ? Once up and running, i’ll do cam and heads, but still only 6-7psi total boost. Thanks for any help. Oh and it has a 150 shot of spray already plumbed, which i run, but i might only use if the turbs are a bit slow coming on. Cheers Neil.

Neil,

The Ultragates might be a little small with the turbo and engine size you have especially with NOS. A better choice would be twin progate50s. Those will handle the mods you have, plus future mods quite easily.

Hey mate i have just recently brought a 38mm ultragate and have installed it properly,i have noticed that there is a leak past the valve and coming out where the screamer pipe is attached? ive herd cheaper ones dont do this so unsure of this,Your help would be much appreatied

Cheers john

Hey mate my 38mm ultrgate seems to be leeking boost from the valve guide, its got a small amount of play on the valve, and when i opend it up you could see that exhaust gas is entering the diaframe area. is this normal or do i need to replace the wastegate. The waste gate is a year old

Any help will be appreciated
thanks
Neil

John H,

Please check that the valve seat and flange gaskets are in place.

Neil,

Is the 38mm Ultragate the new style or old style? A small amount of play and leakage is normal as there is clearance between the valve stem and guide but excessive leakage means the valve and guide are worn out.

Good day Mate

the ultragate is the new style,is it normail for exhaust gas to enter the diaframe area, it starts to leak noticeably at around 20psi to the extend that you can hear it and feel the air blowing out past the valve guide.

Thanks
Neil

Neil,

exhaust gas should not be able to enter the diaphragm area, the dirt inside there could be caused by something else. Have you removed the gate from the engine to test it at 20 PSI on a bench and can hear a small leak?

Good day Mate

yep, i’ve removed it and test it on a bench. What is the maximum clearance between the valve and guide? if i put air preasure into the bottom chamber and tap it of with 20 psi, should the air escape thru the valve and guide? what whould be the best way to test it and know it is right.

Neil,

There will be a small amount of air that will go through the clearance gap between the valve and guide. It would probably be audible as well but not loud. Is the wastegate still opening at the pressure that the spring is rated to? Was your car not making boost or making too much boost?

I’m going to be running a PT67 on my 07 3v mustang. 12-18psi (500-600hp) with the eboost2. What size wastegate should i use? was thinking the 50 pro.

Jeremy,

A progate50 would suit your power and boost levels

hi i have an xr6 turbo so far stock next week im getting it tuned and getting a cooler upgrade air intake i have a turbosmart blowoff valve is it necassary to buy an adapter kit or can i get away without one

Yakup,

It depends on how much of the intercooler system you are changing, just the core, or all the piping as well.

Hi There,

I have a external gate from you(turbosmart) its the ultra gate38, I can not determine which spring this is? I have used your instructions in the user manual and still cannot work this out. Its the outer spring but not sure what psi this is can you help me please?

Cheers Nackerz

Hi there,

I have a Turbosmart Ultragate 38mm wastegate, but I am missing one of the vacuum fittings for it? Are you able to organize a replacement for me?

Also, I am after a blow off valve for a Holden VL Turbo, RB30ET, turbo has .63AR exhaust, .50AR compressor side, 2.5 inch intercooler piping with a 600×300×75 intercooler, standard side-facing plenum/throttle body.

I would like a blow off valve that:
a) Doesn’t flutter like a butterfly valve
b) Doesn’t have a high-pitched whistle
c) Doesn’t open and close super-quick (would like the ‘woosh’ to be a long one
d) isn’t too quiet (can be quite loud)

I realise that some of these things might be able to be controlled by how much spring tension I set the bov to, but could you please tell me what you would recommend for my requirements?

cheers
Sam

Nackerz,

How old is the ultragate38? Is it one of our new style ones? What colours are painted on the springs?

Sam,

Any 1/8 NPT nipple will screw into the port. We don’t actually sell the nipples separately.

In terms of BOV’s, a Dual port would suit your needs and can be configured to your liking.

Hey mate,

Not sure how old it is, i can take a pic if you like, there was no colours on the spring…

also i just put the setup on the car yesterday, now with the wastgate…

the bottom nipple goes to the front of the turbo housing and the top one goes to the atmosphere according to your instructions…

with it setup this way it doesn’t boost at all so i decided to change them around bottom to atmosphere and top to front housing of turbo…..

WELL it hit 20psi and still wanted MORE but as i havent fitted the turbo injectors yet it coughed a little needing more fuel….

i have a boost controller on the way, so that i can set the boost level at about 7-9psi as its only a stock motor

heres some pics of the wastegate

http://i47.tinypic.com/bhkv1z.jpg
http://i50.tinypic.com/29dfe2t.jpg
http://i50.tinypic.com/2rgops5.jpg
http://i46.tinypic.com/2j60guh.jpg

i have the ring on the part of the wastegate its just not on in the photos

<a href=“http://tinypic.com” target=”_blank”><img src=“http://i46.tinypic.com/2j60guh.jpg” border=“0” alt=“Image and video hosting by TinyPic”></a>

Nackerz,

The wastegate you have is the old Ultragate. The bottom nipple should go to the front of the turbo housing. Changing this around will make your car produce the maximum amount of boost your engine will make.

In the first setup, what boost level did you reach? That will tell you what spring you have in your wastegate.

With it set up the way it should be with the bottom nipple closest to the mounting point, it would not make any boost at all.

i now have put an adjustable boost controller in that line and it makes 5psi even when i turn up the controller it wont make anything over 5psi. When screwed all the way in its 5psi. and when screwed all the way out it is still 5psi.

so i was thinking the external gate is either faulty or not working properly.

can i get a new diaphram and spring for the old gates?
and how much would this cost?

cheers for your help

Nackerz,

Is the wastegate open at idle? Does the valve move up and down when you push it? Is the valve seat installed? A damaged diaphram will cause and increase in boost, not a decrease. Where are you getting your pressure signal from to supply the wastegate with pressure?

Hey mate

No the wastegate is not open at idle, it opens as soons as it starts to spool up,

Yes i can push the valve up and it will come back down,

Yes the valve seat is installed when on the manifold,

The pressure for the wastegate goes from the front turbo housing to the bottom nipple of the wastegate..

I messaged the bloke i got the boost controller off.

He said unscrew the adjuster all the way out and make sure the spring was moving freely and it was. The boost controller is now working and i’m running about 12psi..

BUT, that doesn’t explain why the wastegate opens when i dont have a controller on it and doesn’t make any boost at all….

Thanks for all your help, you have been a great team and i recomend anyone to this site that have your products and recomend if they don’t have your products to get them as they are all good even the old stuff, so that is saying the new stuff will be even better!!!

And thank you so much for your support and help through all my troubles!

:)
A++++

And a 100 outta 10

Cheers guys/girls

Hi, I´m running a ultra 38 with a frount mount intercooled Turbo system on a 408ci LS in a Silverado. The turbo is a T76 with .96 AR, also have a bov type 1 and a dual stage boost controller. This whole kit started with a smaller engine. Now I´m not sure if All the components are right, or living on the edge. Everything seems to work just fine.
LOw boost is 8 psi, and high boost set for 12psi (14psi max since CR is high). No boost creep whatsoever, steady psi, but also dont know if tighter adjustment of the BOV will influence my lag, or is just a sound earlier or later adjust?

Now I´m looking for an upgrade for the turbo, maybe same size with BB or a bigger one that will fit my T4 flange and works well in the 3” downpipe. so until I find it, do you think I should upgrade my system?

By the way Turbosmart is great, working with this parts 3 years and they rock!

Nackerz,

With no boost controller, the wastegate will begin to open at very low boost levels and will be very slow to get to maximum boost. With a boost controller like a Boost Tee, it has a gate system which restricts pressure to the wastegate so a higher pressure needs to be achieved before the wastegate begins to open, resulting in better boost response and better low to mid range torque.

Thank you. We appreciate your positive comments about our products and services.

Gabe,

Adjusting the BOV too tight will result in more compressor surging, reduce the response from the BOV, resulting in later sound. Adjustment of the BOV will have a negligable effect on lag.

The best to do would be to upgrade the turbo first and see if the added boost and power affects the functionality of all of the other parts on the car and replace them accordinly.

hey i was looking at putting a 38mm ultragate with a 7psi sping and an electronic boost controller on my 95 wrx sti theres been no mods done except pod filter on bov. would i require anything to be done to use the wastegate i would boost 7-10psi

Mitchell,

Since there are no other mods of the car, there is no need to put an external wastegate on as it requires fabrication of the exhaust manifold to fit and the standard internal wastegate would work fine especially at the boost levels you are looking at. The e-Boost2 on the other hand would work nicely in your car and will allow you to get boost to come on earlier and increase the boost level meaning more power, better mid range torque and overall improved drivebily and feel.

but if didnt mind getting the work done there would be no harm in putting the gate in and getting it plumbed back the internal one and wastegate actuator are playing up

Mitchell,

If that is the case then no, there is no harm to installing an external wastegate and getting it plumb back if the the standard actuator is playing up.

hi i have a wrx ej20 but have blown the engine and am now getting a sti shortblock and putting the vf23 turbo on my car and i want to run 19psi will this ewg be suitable for my car thanks scoo83

scoo83,

this wastegate will be fine for your application

I am using the Ultra-gate 38 on my turbocharged Buell XB12S motorcycle. I have had great results using the stock 7psi spring and a boost controller to bring boost to a 12psi max. I am interested in lowering the base boost by installing just the 5psi spring. Will the wastegate function just as well with just the 5psi inner spring installed and the manual boost controller?

EricZ,

The wastegate should work fine with that spring installed.

hey tech, just looking for gasket set for a street gate 38, and im going to be running 8psi boost, what spring you think ill be good for?

Rick,

Gaskets are #TS-0501-3002. A 7 PSI Spring combined with a boost controller would be good for your 8 PSI target.

Hey, I have a Turbosmart wastegate but it says its the Ultra Gate 35? Is this just a very old model wastegate? Also, I was curious as to where I can buy a 10psi spring (WG38/45 10 psi middle spring Green/Blue), new gaskets (WG38 Manifold Gasket, Stainless Steel 2-Pack ), and 1/8” NPT nipple screw; but I read further up that you dont sell those individually.

Danny,

The Ultragate35 is a very old model. The current springs do not work in the old wastegate. We do sell the manifold gaskets (TS-0501-3002). The fittings you can get from a local fitting shop.

Hi,

Looking to replace a Tial 38mm wastegate with the Ultragate 38. Are the flanges and flange positioning the same as the Tial unit? They look the same in pictures, but i’d just like to make sure.

Thanks!

Ben,

Yes, our Ultragate38 has the same traditional flange pattern and position as your current wastegate.

hi i have an xr6 turbo 05 with a bit of work done to to it upgraded intercooler and piping air intake valve springs tuned eboost street controller and turbosmart bov running at around 13psi at 295 rwkw but the boost controller drops out around 10psi is this because i need to upgrade the wastgate or just the wategate actuator

Yakup,

If you are experiencing boost drop off at the top end, it can be due to the wastegate actuator being forced open. The E-boost street has a boost correction feature which can fix this drop off. The instructions have detailed explanation on how to use this function.

bought a 38mm gate the guy said was a 12psi spring i tested it with the boost controller off boosts only 7 and gate opens.
is there a possibility a boost leak on manifold side/throttle bod could cause the loss of the 5 psi but the gate still sees what it thinks is 12psi and opens? i have tu set the boost controller (aem truboost) to 42 gain to get 12.

basically askin what could cause the gate to open earlier than the theoretical mechanical spring?? car runs fine not really behaving like its got a leak but i do suspect the tb as a possible leak. feels a little laggy but its my first time with a large turbo (sc61 billet non bb)

Karna,

Any leaks in the actuator side of the wastegate or any leaks to the signal being provided to the actuator will cause an increase in boost. It sounds like you have a 7 PSI spring in the wastegate. One way to really check is to take the wastegate off and using a hand pump, apply pressure to the bottom port and take note on when the valve begins to open, that will tell you what spring you have.

i have a untra-gate 38 and i removed it to find the valve is not sitting on the seat ? the gap is about .5mm /

thanks

i have a untra-gate 38 and i removed it to find the valve is not sitting on the seat ? the gap is about .5mm /
just to add to that if i put pressure to the wastgate it opens normally but will not hold pressure is that normal?
thanks

Chris,

is it an old or new style Ultragate38? With the valve seat in the bottom of the gate, when you press down on the lid, does it push against the valve?

There is a small tolerance between the valve stem and guide which will allow a small amount of air to pass through.

its the new style , not very old like 3 months. what do you mean press on the lid ?
do you mean the valve seat ? no it does not .

CS,

The valve seat should be preloaded against the valve so when things are bolted together, the valve seat is hard up against the valve. Were you having boost control issues and removed the wastegate due to that reason?

hi…some tips pls…

I have recently change my wastegate to Ultragate 38mm…Previously I was using the HKS 44mm but seems that its having a bit problem now..so instead of repairing it I’ve change it to this Ultragate 38mm.The problem now is that it’s too quiet..as if i’m not using any external wastegate..

Just some additional info…I’m using 0.5 a meter for the waste pipe length with 1.5 inches diameter (even dent it at the end) ..i did use the same length before with my previous wastegate and the sound is incredible but as i mentioned with the same length now with this Ultragate, how come its too quiet?

Need some advice here please…

Kafy,

The amount of noise your wastegate will make is really up to your engine and when the gate opens. Do you have a boost controller on the car? How much boost are you making?

hi i have just brought an ultra gate and i’m looking to run 25psi of boost i’m also using e-boost 2, what springs should i put in my wastegate

James,

Is 25 PSI of boost your lowest setting of boost? The springs you should have in you wastegate should be a combination that gets you as close to your lowest desired boost pressure. So in this case, if you want to run 25 PSI as your lowest pressure, we’d suggest having 21-24 PSI springs in the wastegate

thats cool, what spring does the wastegate come with standard? thanks

No matter what spring I put in my ultra-gate 38 wastegate it will only run 5psi but if I put an inline boost controller I can run the desired psi I want. Can you help with the problem?

I have a 2009 5.7 6-speed challenger with a 75 T4E/T4V P-trim BallBearing 67mm turbo. The turbo is an upgrade from a 60-1 journal bearing turbo kit. It has a 38mm pro-gate on it with a 5psi spring but is creeping to +11psi in 3rd gear (without a controller). I am wanting to run the car at 7-8psi with my controller. I am sure the gate is way to small for this turbo so what one do you suggest from your line?

James,

The Ultragate38 comes with a 7 PSI inner spring. You could use our 14 PSI middle spring to get to 21 PSI.

Joel,

What engine is it on and how much power would you want to make? What springs have you tried?

Could you please tell me if I can get hold of springs for the older style Turbosmart wastegates – it’s actually a Turbomaster SG45? I haven’t taken it apart yet so wasn’t sure if it uses the same concept of inner/middle/outer springs as the newer versions do.

Many thanks,
Chris

Chris,

The springs in the Turbomaster wastegates are different sizes compared to our older style wastegates.

When the car sets for over an hour or longer and it is started, the vac only reads about 10 on the boost gauge, idols very low, and the car sounds like a lawn mower. There is exhaust coming out of the wastegate when the engine is running and seems like it comes straight from the dump tube when all this happens. Once I drive down the road and get into the turbo and get some boost into the system, it idols and runs fine.

Could the wastegate springs be bad or sticking?

Greg,

Has it always happened or just started happening? What engine, what turbo, what wastegate, what boost controller do you have? What ECU are you running?

hi i have a rav4 that i have turboed its a 3sfe thats been stroked to a 2.2l with a gt30 gattet turbo ive been running your ultragate38 whth the fitted spring it only reaches 5 psi i have a gizmo boost controller and can control it to about 18-19psi but lately i have noticed boost levels only reach 16 psi all the settings on the controller havent changed i have tried changing gain on the controller for more boost but doesent do anything

could the waste gate spring be the problem ?

at 17psi its made 171kw i want to run 22 od psi to reach my goal of 200kw at all 4 wheels

i was thinking to get rid of the controller and just get springs to allow me to reach those levels can you reccomend the appropriate springs

Jonathan,

How old is the Ultragate38 you are running? Wastegate spring could be a problem. With a 5psi spring, you will have difficulties in controlling very high boost as the spring has not got alot of force on the valve making it very succeptable to movement as your exhaust back pressure gets higher. If your low boost setting is much higher than 5 psi, such as 10 psi, then controlling up to 22 psi will not be a problem with a boost controller. You could also have a spring combination of 21psi which would mean you would not need a boost controller.

the wastegate is a year old its only done 3-4000kms

can you recommend what springs to use to achieve 21psi

Jonathan,

you could use a 14 psi middle spring (TS-0501-2007) and a 7 psi inner spring (which should have come with the wastegate) to get your 21 psi of boost.

Hello,

What is the max psi that the 38mm can achieve with a 10psi spring using a electronic boost controller

Cas,

That really depends on your car and turbosystem and how much back pressure there is. A rule of thumb is that you can achieve double what the spring is rated to safely. You will be able to achieve more but boost might become unstable or not achievable if you go too high.

Hi i have an ultragate on my RB25 with an eboost street with 2 settings 10 psi low and 16psi high, i have not opened the wastegate i.e not changed any springs, when it is set to 10psi all is normal when set to 16psi it hold boost pressure fine but i am experincing a slapping type noise i am wcurious could this have anything to do with spring tensions being to low or is this a characteristic of this wastegate

Liam,

The standard spring should be fine to the boost levels you are running. Where is the noise coming from? When do you hear it?

The noise is coming from the wastegate, it happens as soon as the wastegate opens but only happens on 16psi i previously had my boost levels at 14psi and it never did it then, i am wondering if the the gate isn’tt big enough

Liam,

Is it a current ultragate or the previous model? The size of your wastegate is determined by what the lowest amount of boost you want to run is. If you are achieving your desired low boost setting, then the wastegate is big enough for your application.

When this slapping noise is happening, does your boost change or it holds fine through the rev range? Is your wastegate vent to atmosphere or returned back into the exhaust system?

I think its the old model as it has been on the car for a couple years now, it holds boost fine at the high(16psi) and the low(10psi) and then wastegate is vented into the atmosphere to the noise is quiet noticable

Liam,

It could be the valve rattling through the body or the valve guide at that valve lift. Over time, they do wear out. If its still holding boost fine, then the diaphragm is still intact. Could any of the bolts be lose or the dump pipe is hitting something?

Hello,
I am using an iultragate38 on my car, it was working fine with my ebc but two days now the boost seems to come later and when i lift the throttle it takes too long for the boos to build up again even in high rpm or high loads.
I checked all the connections and pipes, i even took out the ebc and run it alone, could this be the membrane?

John,

A damaged diaphragm will cause more boost. What boost controller are you using? How old is the ultragate38? Is it a current model or the previous model? How does it run with just the vacuum line hooked up to the bottom port of the wastegate?