Boost Controller and wastegate installation

[GOTZOOM?]

never owned a turbo with a External Wastegate, so I am lost at installing it. Here is what I need to know.

1. There are two nipples on the wastegate. One says boost, one says vaccum. Where do each of these go. Before answering this, read question 2

2. I am also installing a Greddy boost control. A hose needs to go from the valve unit to the wastegate, so I take it that it goes to either one off those nipples on the wastegate.

3. Do I run a spring in the wastegate when using a boost controller, and if not, did my Delta Gate ship with one installed. I received 3 springs with it, a black, a silver, and a blue.

Thanks!

 

[GOTZOOM?]

(boobs) Maybe I'll get some answers with these.

 

[igdrasil]

Hook it in the boost hole.
thats where the wastegate reads boost and push the spring.

different springs for different stiffness. so a stiffer spring will generate more boost.

 

[GOTZOOM?]

is the vaccum hole left open?

 

[igdrasil]

yes....

i think you can hook vacuum lines in there as for the bov or anything. check with the boost gauge.

 

[HiBoost TS]

never owned a turbo with a External Wastegate, so I am lost at installing it. Here is what I need to know.

1. There are two nipples on the wastegate. One says boost, one says vaccum. Where do each of these go. Before answering this, read question 2

2. I am also installing a Greddy boost control. A hose needs to go from the valve unit to the wastegate, so I take it that it goes to either one off those nipples on the wastegate.

3. Do I run a spring in the wastegate when using a boost controller, and if not, did my Delta Gate ship with one installed. I received 3 springs with it, a black, a silver, and a blue.

Thanks!

Gotzoom,

There are two ways to connect the greddy boost controllers.
Remote wastegate or actuator.
You must have gotten an instruction manual with it.

If you have a Deltagate, run it as a remote wastegate. There are some dip switches in the back that have to be turned on or off according to your setup.

Make sure you do that right or overboosting may occur.

The boost port receives the signal from the compressor side of the turbo and if you choose the remote wastegate setup in the greddy, the line from the greddy solenoid goes into the port that reads vacuum.

Make sure you use the small filters supplied with greddy so no foreign objects get into the solenoid.

Juan

 

[igdrasil]

Hey I have a question. what if I want to run the wastegate boost reader from the manifold?

I think that running it at least after the intercooler will give better results. the wastegate directly connected to the compressor (like my setup) may open sooner...right? thus spool up will suffer a bit.
right?

how can we optimize this? I mean, if im boosting 10psi, normally @ 7psi (depending also from the spring stiffness) will start to open. It could be great that at least keep it closed until reaching 9psi.

I think the greddy profecs do this right?

 

[HiBoost TS]

Hey I have a question. what if I want to run the wastegate boost reader from the manifold?

I think that running it at least after the intercooler will give better results. the wastegate directly connected to the compressor (like my setup) may open sooner...right? thus spool up will suffer a bit.
right?

how can we optimize this? I mean, if im boosting 10psi, normally @ 7psi (depending also from the spring stiffness) will start to open. It could be great that at least keep it closed until reaching 9psi.

I think the greddy profecs do this right?

Yeah! with some profecs you can set the sharpness of the boost.

 

[GOTZOOM?]

Re: Re: Boost Controller and wastegate installation

Gotzoom,

There are two ways to connect the greddy boost controllers.
Remote wastegate or actuator.
You must have gotten an instruction manual with it.

If you have a Deltagate, run it as a remote wastegate. There are some dip switches in the back that have to be turned on or off according to your setup.

Make sure you do that right or overboosting may occur.

The boost port receives the signal from the compressor side of the turbo and if you choose the remote wastegate setup in the greddy, the line from the greddy solenoid goes into the port that reads vacuum.

Make sure you use the small filters supplied with greddy so no foreign objects get into the solenoid.

Juan

I am running a deltagate, no instructions. The boost controller is the new B spec II, no dip switches, I beleive it sets itself.

So what is happening is during boost the pressure is pushing on the top and the bottom of the wastegate diaphram (greddy is keeping the port valve open) until set boost. At set boost, greddy closes port valve so that only pressure is pushing the diaphram from the bottom, opening the wastegate valve allowing exhaust to release?

So should I use the least stiff of spring in the wastegate?

 

[HiBoost TS]

Re: Re: Re: Boost Controller and wastegate installation

So what is happening is during boost the pressure is pushing on the top and the bottom of the wastegate diaphram (greddy is keeping the port valve open) until set boost. At set boost, greddy closes port valve so that only pressure is pushing the diaphram from the bottom, opening the wastegate valve allowing exhaust to release?

So should I use the least strenghth of spring in the wastegate?

Yes, go with the lowest so you can go that low when you want.

If you have a stiffer one, you won't be able to go lower than that.

 

[GOTZOOM?]

Ok, cool, thats what I have in there now, I think it is a 3.5 PSI.

 

[Little Beavis]

I have to hook up my Profec B Spec II yet. . .are those directions correct? I read the book when I got it, but I don't recall that I had to hook the solenoid up to the vacuum port (not saying that isn't what it said, I just don't remember that). Is that correct?

 

[igdrasil]

of course, that where you control boost.
cut the boost/vacuum feeding and you will raise the boost.

thats how it works, the profec will feed the wastegate with certain amount of boost to control the wastegate opening.

if you dont feed the wastegate with boost at all, it will spin to max.

 

[starflare21]

just a tidbit about the profec b spec II boost controller. greddy must've apparently screwed up while translating the intstructions because the installation diagram doesn't match their written instructions so read them carefully!

this might've been only for internal wastegate setups but this was a problem a customer with an MSP had. boost controller worked fine, then crapped out, overboosted and wouldn't steady out. found the problem in the directions and fixed it.

 

[Little Beavis]

So, how do I hook the Profec B Spec II up to my external wastegate. . .I'm thoroughly confused now.

I thought I would "splice" it in on the regular line I now use to activate the wastegate, but this thread says to put it on the other port (the one I was previously told to never plug or cover or use). HELP!

 

[HiBoost TS]

So, how do I hook the Profec B Spec II up to my external wastegate. . .I'm thoroughly confused now.

I thought I would "splice" it in on the regular line I now use to activate the wastegate, but this thread says to put it on the other port (the one I was previously told to never plug or cover or use). HELP!

Like I said, there are two ways:

1- To do it like an actuator, where you do what you just said, splice the hose and that's it.

2- Do it as a remote wastegate where you have to splice the hose you already have, use a tee and from it run a hose into the inlet port of the greddy solenoid. Then run a hose from the outlet of the solenoid into the port that reads vacuum. This is the right way if you have a remote wastegate.

There must be a way to set it for the two different types.

 

[Little Beavis]

Thanks for your help, but I'm an idiot today. . .

Per the Greddy manual:
There are three ports on the spec II
"NO" "COM" and "NC"

It appears that you use the "NO" and "COM" for the actuator type and the "NC" and "COM" for the remote.

Unfortunately, it doesn't really give clear instructions on how to hook up those lines to the wastegate. The directions say "install hose on the top of the wastegate". In the case of the Deltagate, that would be the infamous "Vac" inlet I mentioned. However, that may not be the case on other wastegates (I don't know). They clearly show the Greddy Type R wastgate with a line to the top of it from the "COM" port and a line from the turbo to the "NC" port.

I guess that means what you said is the way it is supposed to be (it wasn't that I didn't believe you, I just had no frickin' clue).

 

[igdrasil]

So, how do I hook the Profec B Spec II up to my external wastegate. . .I'm thoroughly confused now.

I thought I would "splice" it in on the regular line I now use to activate the wastegate, but this thread says to put it on the other port (the one I was previously told to never plug or cover or use). HELP!

I have never hooked up a ProfecB, but this should be basic. You will need at least to feed the Profec with boost, he needs to receive boost in the inlet port of the selenoid. Then you will need to hook the wastegate to the ProfecB on the outlet port of the selenoid.

warning...
numbers i used are not real, but give the idea, i dont know real numbers.

How it works? Well, suppose you are running 6psi of boost. At full boost, we all know that the line feeding the wastegate is receiving 6-7psi depending on the pressure drop in the intercooler (pressure before the intercooler will be higher).
That amount of boost (6psi) in conjunction with the exh. manifold pressure (lets say a 8lbs of pressure) is pushing the wastegate spring that is holding close the valve with a total of 14lbs of pressure. If the spring installed is a 14lb rated, at aprox 6psi of boost, the wastegate will open the valve thus creating a pressure drop in the exh manifold and eventually the turbo will not spool further.
One of the features that the profecB will do to raise the boost is just cut a certain amount of boost sent to the wastegate just like a MBC will do. Thats why you cant go lower boost unless you put a less stiffer spring in the wastegate.
I dont know if you have noticed (with wastegate vented to atmosphere) that most of the time, if you are running 6psi of boost, @ + or - 4psi of boost, the wastegate will start to open. Well the profec can alleviate that, it will sense boost, and cut it until reaching 6 psi and then will send boost to the wastegate...

why? just to leave it closed as much as possible for a faster spool up.



Hope you understand this english

 

[Little Beavis]

Gracias. . .your english if fine. I agree, I just want to make sure I hook this up correctly.

I got it to spool up faster. If I set it at 6, I don't want the wastegate to open unil 6 (it opens early now). So, I figured this would splice into that line (that's what makes sense to me). I don't understand how it works when you hook it up to the other line. That's the part I don't get and ultimately what bothers me. Guess I just need to try it and find out. BOOM!