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How to tune your Electronic Boost Controller

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Old 02-25-2011, 09:29 AM
  #76  
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Originally Posted by Kane
No, the lowest pressure should always be JUST the wastegate. You need to wire yours like an internal WG. You do not want a boost signal to hold WG closed in the event of solenoid failure.
You are talking about the BC being wired backwards? I'm starting to get a little confused. But I agree and understand the concept about Fail-Open for the wastegate. I guess I need to research how these are setup.

I am thinking that the BC is holding the wastegate open when energized because I can limit the boost when it's on. So this implies that it's wire backwards as it should be holding the wastegate closed to build up pressure, right? So you are saying that the boost controller is wired backwards and that the wastegate needs to be changed? Do you think it could simply be the spring that needs to be replaced?
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Old 02-25-2011, 09:53 AM
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Yes, wire it like an internal WG, where the line out of the solenoid goes to the lower WG nipple to help push it open when the solenoid opens.
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Old 02-28-2011, 08:26 AM
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Originally Posted by Kane
Yes, wire it like an internal WG, where the line out of the solenoid goes to the lower WG nipple to help push it open when the solenoid opens.
I spent the whole weekend moving my girlfriend out of her apartment and never got time to do this, but now I know how this is supposed to work. I love this forum and really appreciate the people and information that is available here.
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Old 04-08-2011, 04:52 PM
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Great read. Now to choose a EBC.
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Old 04-11-2011, 02:17 PM
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Originally Posted by 9krpmrx8
Great read. Now to choose a EBC.
I won't go so far as to say "they're all the same" but most of them are very close in the way they operate. The settings just have different names. For example, the "START BOOST" aka "SET GAIN" on a Profec Spec II is the same as the "Spring" setting on a AEM Tru Boost. A lot of it comes down to price and aesthetics.
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Old 04-11-2011, 04:03 PM
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^^^ This is very true.

The solenoid concept is pretty much the same on all of them.
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Old 04-11-2011, 04:05 PM
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I am getting the Profec Spec II so you guys can help me with it
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Old 04-11-2011, 04:09 PM
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Haha
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Old 05-30-2011, 02:05 PM
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Originally Posted by Kane
Werd have fun man.

I think you are going to be suprised at how hard the car pulls to redline if you cna keep that 9-10 psi going....

NA RX8 = Electric Motor-ish rush to redline
Turbo RX8 = More like a V8
Turbo RX8 with boost control = better than sex

Just bought a PRofec..... this sounds enjoyable
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Old 05-30-2011, 03:05 PM
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+1 on just getting the Profec II
Steep learning curve for me
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Old 05-30-2011, 03:35 PM
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/\ BC is the last thing you want to touch . Getting the rest of it sorted is the first priority ...
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Old 05-30-2011, 04:45 PM
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^ You can bet I'll be taking my time and being very carful with this bad boy, most likely run it doing nothing just to get familiar with it first
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Old 03-18-2012, 06:40 AM
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Originally Posted by 9krpmrx8
I am getting the Profec Spec II so you guys can help me with it
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Old 03-18-2012, 07:31 AM
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Originally Posted by hoss -05
LOL
First time I`ve seen a thread revival with a group hug!
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Old 03-26-2012, 01:14 PM
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haha I've had my profec for like 6 months plus now.... It's just been sitting on my desk staring at me; but I just can't find the courage to try and install it in my garage while the weather is still below zero haha.... one day soon though
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Old 03-26-2012, 02:13 PM
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doooooooooooo it
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Old 03-28-2012, 06:17 PM
  #92  
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^^^ This.
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Old 06-09-2012, 08:40 AM
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would any of you guys share what you are running on your Profec B series II?
on 'hi' mode? looking to achieve 9psi, off greddy turbo, de-cat, standard injectors.
thanks.
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