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Old 11-14-2010, 05:03 PM   #1
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Default Boost solenoid Position With Manaul Boost Controller

My turbo doesnt have a vacuum pipe going from the compressor to the actuator so instead I have had to take a line from the vacuum source on the inlet manifold.

Where do I need to position the boost solenoid as I have a manual boost controller between the actuator and the inlet vacuum source.

Does it go after the Manual boost controller but before the actuator so it picks the boost up when the Manual boost controller has increased the boost as it reads the boost going through the turbo?

Or does it go after the Manual boost controller between that and the inlet source so it detects the boost before the controller has increased it?

Or an Other area?

Thanks
Andy
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Old 11-15-2010, 12:39 AM   #2
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It should basically go where your manual boost controller is now (in between the line that actuates the wastegate. Basically it's just a valve that will open and let pressure go through once it reaches a certain threshold. On another note, you need to take your wastegate signal before the throttle body.
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Old 11-15-2010, 09:55 AM   #3
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are you saying you want to run both MBC and EBC?
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Old 11-15-2010, 10:45 AM   #4
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Originally Posted by dustinb View Post
On another note, you need to take your wastegate signal before the throttle body.
+1

Dustin is right. Do not take the wastegate actuator signal from the intake manifold. Take it somewhere between the intercooler and the throttle body.

Why do you want to run both a manual and an electronic boost controller? Why not just the electronic one?
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Old 11-15-2010, 12:39 PM   #5
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Originally Posted by Braineack View Post
are you saying you want to run both MBC and EBC?
OK I may have made a mistake!
I have gone and bought a manual boost controller as a means to increase the boost upto 14-15 psi. Dont tell me I have wasted my time as the EBC does that for me?

If so does it go between the actuator and the inlet manifold as thats where I have had to take the pipe to?
Also how does it increase the boost via the MS tuning software?

Thanks for your patience believe me I feel dumb!
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Old 11-15-2010, 01:27 PM   #6
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BC = Boost controller.

M= Manual
E= Electronic

just a means to the end.
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Old 11-15-2010, 04:17 PM   #7
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+1

Dustin is right. Do not take the wastegate actuator signal from the intake manifold. Take it somewhere between the intercooler and the throttle body.

Why do you want to run both a manual and an electronic boost controller? Why not just the electronic one?
Where can I take the pipe from then?
There is nowhere to 'T' off. I was told to take it from the pipe on the top of the inlet manifold. I could take it from the line where the fuel pressure regulator is at the back left of the engine bay? I already have my ECU piped into that as instructed.

Or can you suggest where to pipe it?
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Old 11-15-2010, 04:25 PM   #8
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I would just drill and tap the compressor housing and screw a fitting in there.
Put loads of grease on the tap (and the drill) and start the car with the boost pipe removed for the first time.

Doesn't mean I'm right though
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Old 11-15-2010, 04:28 PM   #9
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i wouldn't. leave it where it is...
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Old 11-15-2010, 04:30 PM   #10
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Originally Posted by ronniebiggs View Post
Where can I take the pipe from then?
There is nowhere to 'T' off. I was told to take it from the pipe on the top of the inlet manifold. I could take it from the line where the fuel pressure regulator is at the back left of the engine bay? I already have my ECU piped into that as instructed.

Or can you suggest where to pipe it?
You must add a small fitting for the little hose. You need to take the signal from there. If there was another location that would be easier and work properly I would tell you so. I would suggest that with your limited technical experience it might be preferable for you to use the manual boost controller.

What is your air fuel ratio in boost currently? And how many pounds of boost?
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Old 11-15-2010, 04:33 PM   #11
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just leave the boost signal at the IM...
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Old 11-15-2010, 04:37 PM   #12
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just leave the boost signal at the IM...
I will do thanks. Is there any good or negative reasons to take it from there? I know quite a few turbos have the pipe on the compressor housing.
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Old 11-15-2010, 04:38 PM   #13
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see Joe Perez's boost drop thread.
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Old 11-15-2010, 04:39 PM   #14
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Just less chance of any leaks with a direct route...
But yes I think it will be fine where it is.
I wouldn't even use the EBC due to fear of it breaking....
Maybe I just think too much
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Old 11-15-2010, 04:40 PM   #15
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Originally Posted by sixshooter View Post
You must add a small fitting for the little hose. You need to take the signal from there. If there was another location that would be easier and work properly I would tell you so. I would suggest that with your limited technical experience it might be preferable for you to use the manual boost controller.

What is your air fuel ratio in boost currently? And how many pounds of boost?
I havent got the car running yet. Im just installing things. But as I solve one problem I create 3 more.

Its almost finished now just the boost controller, heater matrix pipe and a downpipe to buy (Which im arranging with Abe) then I can get it started and see how it runs.
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Old 11-15-2010, 04:42 PM   #16
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You have had it running before though ?

if not I would leave it at the standard boost for a bit.
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Old 11-15-2010, 05:18 PM   #17
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Ok so after 5 pages of informative reading the consensus is that taking the feed from point 'B' is the best point.
That does create a few issues for me as I could only really do that from the pipe I have added just before the throttle body but that already has my BOV, AIT sensor, and idle valve pipe welded into it. So adding another pipe for that would be too congested.

I have a stainless steel 90 degree bend which comes out the TB side of the intercooler which I could tap and I suppose from what was said that should be fine.

2 things off topic.

1st the BOV feed. Brain you said to take the feed for this before the TB? Someone replied after that to say take it from after the TB. Is it ok to take it after?

2nd I dropped my AIT sesnor and smashed the white plastic around the sensor. But the sensor itself looks ok. Can it still be used as its exposed and not protected? I picked off all the white plastic so none could go into the engine.
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Old 11-15-2010, 05:20 PM   #18
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You have had it running before though ?

if not I would leave it at the standard boost for a bit.
No never had it running yet. Im still fitting my parts and making sure I get it right before I start it up. Im going straight upto around 12-15 psi but believe me I will be taking it easy and trying to fine tune the fueling etc to make it a reliable car.
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Old 11-15-2010, 05:23 PM   #19
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BOV should be after TB but as close as possible
the IAT is just a thermistor (temperature variable resistor) So should be fine.

I suppose technically point b would make sense but what if you get a leak or a boost pipe comes loose ?? wouldn't the car just keep boosting till it went bang?
(Kind of)

I would rather loose a bit of boost and be reliable I don't use mine for racing but I do use it for long jouneys
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Old 11-15-2010, 05:27 PM   #20
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Originally Posted by ronniebiggs View Post
No never had it running yet. Im still fitting my parts and making sure I get it right before I start it up. Im going straight upto around 12-15 psi but believe me I will be taking it easy and trying to fine tune the fueling etc to make it a reliable car.

I think you will be surprised at the gains you get from just 6psi compared to standard

At that psi anything going wrong will happen sooner so double check everything and drive it straight to a rolling road at 40MPH
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