Long, noobie wastegate questions..

[98mitsuGSX-SD]

There's 3 posts that you can place the nipples for the AVC-R. The ones you want to use on an external WG is the NC and COM ports. The NC comes from intake and the COM goes to your WG. That is the correct connections for a external WG using the AVC-R. The NO is not used for external WG only internal. I don't know why this changes things but I'm just going by the installation manual from the apexi website.

 

[oldman]

I was on my way home from Etown and this little civic kept ####ing with me, I'm easily distracted and i completely forgot to call back

Did you read the link in the first part of my post?

 

[xxraptor660xx]

Yes I'm looking at it, WG setup.

 

[xxraptor660xx]

What do you mean it won't increase in HP or boost? If your car stops pulling at 3000-4000rpm, then that is a problem, but if your are holding boost and still going faster it's still Ok. If it won't rev past there, then that is a real problem.

You don't need any new springs unless you want to run less than 15psi. A boost controller blinds the waste gate until the pressure the boost controller has been set to has been achieved. This is how it works with a manual and an electronic one. The spring setting is the boost you would get if you routed a line from your intake manifold to the waste gate can, that's all. Without any pressure going to it, the spring will hold significantly higher pressures. This is why you can run 20+ odd psi on an internal 16G gate, even though it's only got a spring for 9psi.

A quick and dangerous experiment would be to take the line going to the WG can off and taking a run. Do it on a road where you can watch your boost gauge carefully and let out of the throttle as soon as it goes past what you're seeing. If you leave your foot buried you will go to the maximum boost level your turbo can create.

A less dangerous experiment would be to make a cheap MBC (you can make a bleeder valve for $3 with home depot parts, or a quicker spooling G-valve for about $10 and a little more effort) and use that instead. I think you'll find you can get more boost.

Your problem is most likely to be found in your electric boost controller. Find the instruction manual for it online and make sure it's hooked up properly. My guess is that the solenoid is hooked up improperly, or not functioning due to the fact that it's acting as if there is a line going straight from the WG to the intake manifold.

If those don't fix it, then you could have problems with your turbo, or some other component. It would be difficult to diagnose without knowing that your boost controller is functioning properly.

Ok so I disconnected the top line, and went for a run. I was bossting, then I hit 17 psi and left off the gas. What does this tell me? Should I invest in a different EBC or go with a MBC?WTF

 

[daren_p]

Ok so I disconnected the top line, and went for a run. I was bossting, then I hit 17 psi and left off the gas. What does this tell me? Should I invest in a different EBC or go with a MBC?WTF

No you should do what others have instructed & go over to the Apexi website & download the manuel for the AVC-R boost controller (it is on there for sure). You have the controller hooked up wrong for an external gate & also are you sure you know how to setup the AVC-R?

I run this controller (also with an external WG) & it is a great controller, just takes abit getting use to as you have so much control & I must admit the manuel is pretty useless as far as what the settings do (yes has good descriptions on how to change everything, just doesn't explain why you need/want to adjust the settings very well). Seems it lost alot in translation. The controller is actually very user friendly if you take abit of time to learn it. Some people love it while some hate it, personally I think it works amazing but I took some time to learn what everything does. The ones who hate it usually are the ones who haven't taken anytime to figure out how it works & give up.

If you want to better figure out what all the settings do, do a Google search on AVC-R tuning. You will get a good amount of results that actually go over what alll the settings do & why you want to change them (this is how I learned).

After you hook up the solinoid correctly, what are you doing to try & raise the boost? If your just uping your target boost, this isn't all you need to do. This value is just a target & not necessarly what you'll see. You have to adjust the duty cycle to achieve your desired boost level. The duty cycle amount will depending on your base WG spring pressure & your desired boost level, so not everybodys will be the same. Once you hook it up correctly, I'd do a master reset of the AVC-R (covered in manuel) & start from the beginning.

If your fwd, the AVC-R is somethign you'll want to keep, automatic gear selected boost control is the sh*t

 

[98mitsuGSX-SD]

There's 3 posts that you can place the nipples for the AVC-R. The ones you want to use on an external WG is the NC and COM ports. The NC comes from intake (boost source) and the COM goes to your WG. That is the correct connections for a external WG using the AVC-R. The NO is not used for external WG only internal. I don't know why this changes things but I'm just going by the installation manual from the apexi website.

Did you verify any of this?

 

[98mitsuGSX-SD]

If your going to reset the AVC-R be sure to record the infomation down on a sheet of paper from the settings menu. So you don't have to go back and redo the sensor type, cylinders, and specific gear ratios (I think that's what it's called). I haven't had my AVC-R for a while. I'm using the Greddy E-01 now.

 

[daren_p]

If your going to reset the AVC-R be sure to record the infomation down on a sheet of paper from the settings menu. So you don't have to go back and redo the sensor type, cylinders, and specific gear ratios (I think that's what it's called). I haven't had my AVC-R for a while. I'm using the Greddy E-01 now.

Almost all the defaults are what you'll use as far as setup (think you only need to switch from 6 cyliner to 4) & the gear judge takes like 2 min to setup up (don't think you can manually input it anyways). The rest of the settings are probably useless anyways, even if they were correct before as the WG was connected correctly.

98mitsuGSX-SD post was partially correct but you should be hooking up both ports on the WG, this is what I did (according to the instructions manuel) & I have perfect control.

 

[DGajre777]

http://www.fd3s.net/avc-r_install.html

http://www.fd3s.net/avc-r_manual.pdf

Hopefully, this will help.

 

[xxraptor660xx]

Can anyone please provide a picture of there wastegate hooked up to the solenoid

 

[xxraptor660xx]

There's 3 posts that you can place the nipples for the AVC-R. The ones you want to use on an external WG is the NC and COM ports. The NC comes from intake (boost source) and the COM goes to your WG. That is the correct connections for a external WG using the AVC-R. The NO is not used for external WG only internal. I don't know why this changes things but I'm just going by the installation manual from the apexi website.

Did you verify any of this?

I only see two ports on the solenoid

Update: Ok I removed the solenoid, The Nc port is conected to the line behind the intake. (Also goes to top of WG). The COm port of the solenoid goes to the other nipple on my WG) I read the manual and this seems to be all correct.

 

[daren_p]

I only see two ports on the solenoid

Update: Ok I removed the solenoid, The Nc port is conected to the line behind the intake. (Also goes to top of WG). The COm port of the solenoid goes to the other nipple on my WG) I read the manual and this seems to be all correct.

Sounds like your close but the connections on the WG are backwards. The line behind the intake (this sould be your pressure source line & it it better to source this closer to the turbo, like from a barbed fitting in the compressor cover or in your lower IC pipe) should go to the NC port & also the lower nipple on the WG (or the nipple that supplies air under the diaphragm, which is normally the lower nipple). While the COM port should be connected to the upper port on the WG.

Product documentation can be found here (sounds like you already have this). External hook-up specifically is on page 44 of the manuel or page 48 when opened in Adobe (product documentation):

http://www.apexi-usa.com/product_electronics_detail.asp?id=200&pageNum=1

 

[xxraptor660xx]

Sounds like your close but the connections on the WG are backwards. The line behind the intake (this sould be your pressure source line & it it better to source this closer to the turbo, like from a barbed fitting in the compressor cover or in your lower IC pipe) should go to the NC port & also the lower nipple on the WG (or the nipple that supplies air under the diaphragm, which is normally the lower nipple). While the COM port should be connected to the upper port on the WG.

I switched the lines on the Wg and the car keeps boosting without the Wg opening.

 

[xxraptor660xx]

Ok so I won't lie and say I did my best to lay this out, but here's a homemade diagram.

P.S=pressure sensor.

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[98mitsuGSX-SD]

Nope not right. I'll make a picture for you so you can reference it.

 

[xxraptor660xx]

Nope not right. I'll make a picture for you so you can reference it.

Thanks, I appreciate it.

 

[98mitsuGSX-SD]

That's what the wiring should look like, I'm not quite certain on which nipple to use on a external wastegate. I've only had an internal.

<a href="http://img227.imageshack.us/my.php?image=avcrwiringsl5.png" target="_blank"><img src="http://img227.imageshack.us/img227/1976/avcrwiringsl5.th.png" border="0" alt="Free Image Hosting at www.ImageShack.us" /></a>

 

[oldman]

That's what the wiring should look like, I'm not quite certain on which nipple to use on a external wastegate. I've only had an internal.

<a href="http://img227.imageshack.us/my.php?image=avcrwiringsl5.png" target="_blank"><img src="http://img227.imageshack.us/img227/1976/avcrwiringsl5.th.png" border="0" alt="Free Image Hosting at www.ImageShack.us" /></a>

I'm sorry but that is not correct either, I don't know the in and outs of the AVCR so I can't give you the whole picture but these are the basics.

1. The pressure source should coming from the turbo/j-pipe, not the BOV line nor any manifold pressure (ie the line behind the TB).

2. The pressure source line from turbo/j-pipe should be T'ed, one side of the T should go directly to the side port of the wastegate, the other should go to the AVCR as EBC pressure source.

3. The outlet (manipulated pressure) of the AVCR goes to the top port of the wastegate.

 

[xxraptor660xx]

Where exactly are the PS and FP connected to on the manifold?

And the Bov line goes straight to the tb?

 

[98mitsuGSX-SD]

The PS is pressure sensor and FP is the fuel pressure regulator solenoid. The vacuum line comes from the intake manifold not the throttle body.


I deleted my previous post after re-reading oldmans post. I'm unable to upload any images at work but once I'm home again. I'll redo the image and upload a new one.

 

[xxraptor660xx]

The PS is pressure sensor and FP is the fuel pressure regulator solenoid. The vacuum line comes from the intake manifold not the throttle body.


I deleted my previous post after re-reading oldmans post. I'm unable to upload any images at work but once I'm home again. I'll redo the image and upload a new one.

Honestly, I don't really understand where the Ps and Fp lines connect. The only line coming from near my manifold is my boost line. I redid the setup, so I'll make another diagram..

 

[98mitsuGSX-SD]

Install a 4 port vacuum line fitting. 1 goes to external WG side nipple. 2 goes to the pressure sensor. 3 goes to the NC port on the AVC-R solenoid. 4 goes to the compressor housing for a vacuum/boost source.

Line from COM goes to the top nipple of the external WG.

The BOV line should have it's own dedicated line.

The Fuel Pressure Solenoid should have it's own line. One vacuum line from the manifold to the regulator and then Tee'd off to the solenoid.

 

[xxraptor660xx]

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[xxraptor660xx]

Install a 4 port vacuum line fitting. 1 goes to external WG side nipple. 2 goes to the pressure sensor. 3 goes to the NC port on the AVC-R solenoid. 4 goes to the compressor housing for a vacuum/boost source.

Line from COM goes to the top nipple of the external WG.

The BOV line should have it's own dedicated line.

The Fuel Pressure Solenoid should have it's own line. One vacuum line from the manifold to the regulator and then Tee'd off to the solenoid.

I'll do that tomorrow, but why is my setup so much different WTF?

 

[daren_p]

I'll do that tomorrow, but why is my setup so much different WTF?

Your setup isn't so different. It should be just like oldman has posted or what I posted earlier, which is exactly what in the AVC-R manuel. You don't need the 4 port vacuum block 98mitsuGSX-SD is talking about. This is basically just a different connection metod to achieve the same end results.

If the car is seeing unlimited boost after swapping the hoses, either you have explained how the car was setup before swapping hoses wrong, or because the settings that have been programmed into the AVC-R when it was connected wrong are now not correct (duty may be way to high) so it will seem to you that the WG is no longer opening.

Believe you said you were using a 15psi spring? If so, thats the base pressure I run on my Tial 44 external, so I would think our duty cycle settings would be pretty close. My rpm duty cycles range from 53 to 56% which gives me 25-26 psi. Believe you were looking for around 20 psi so your duty should obviously be less, maybe around 40%.