EBC help

Discussion pertaining to positive pressure E28s.
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Patrick McHugh
Posts: 4163
Joined: Feb 12, 2006 12:00 PM
Location: Richmond, VA

EBC help

Post by Patrick McHugh »

Now that I got my timing table under control with the help of a few knowledgeable members I turned the boost up from 160kpa to 189kpa (13psi). The boost indicator in my car didn't climb above 10psi and I got some surging from the WG. I'm using a grainger valve, which I know is at least getting signal, I can hear it modulating. Any ideas? I tried increasing the Proportional gain up to 75, but it didn't make a difference so I turned it back down to 50.

The controller is plumbed just like the two port wastegate diagram.



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Patrick McHugh
Posts: 4163
Joined: Feb 12, 2006 12:00 PM
Location: Richmond, VA

Post by Patrick McHugh »

I have an 8lb spring in the WG, it's the smallest one I have. I also have a 10 and a 13.
Patrick McHugh
Posts: 4163
Joined: Feb 12, 2006 12:00 PM
Location: Richmond, VA

Post by Patrick McHugh »

I just found this but i'm still pretty perplexed. Back to reading!

http://www.msextra.com/forums/viewtopic ... 31&t=42223
Shadow
Posts: 951
Joined: Dec 28, 2008 10:03 PM
Location: USA

Post by Shadow »

Use duty cycle at first to check everything is working good.
Lower duty cycle means more boost. Change it to normal from inverted and see if that's it.
clongo
Posts: 1050
Joined: Nov 21, 2009 10:58 PM
Location: Raleigh, NC

Post by clongo »

I'm running 15psi and these are my settings. I've read a bunch of guys are running way lower #'s on the PID settings to get the boost to rise. Here are my settings.

P - 12
I - 6
D - 0

I'm also running a 8psi spring.
Patrick McHugh
Posts: 4163
Joined: Feb 12, 2006 12:00 PM
Location: Richmond, VA

Post by Patrick McHugh »

clongo wrote:I'm running 15psi and these are my settings. I've read a bunch of guys are running way lower #'s on the PID settings to get the boost to rise. Here are my settings.

P - 12
I - 6
D - 0

I'm also running a 8psi spring.
Awesome, i'll try this on the way to work and report back. I CANNOT wait to get this thing to some proper boost levels.
Patrick McHugh
Posts: 4163
Joined: Feb 12, 2006 12:00 PM
Location: Richmond, VA

Post by Patrick McHugh »

clongo wrote:I'm running 15psi and these are my settings. I've read a bunch of guys are running way lower #'s on the PID settings to get the boost to rise. Here are my settings.

P - 12
I - 6
D - 0

I'm also running a 8psi spring.
This was it. I'm building boost now no problem. I had to increase the P up to 20 because it was overshooting in 2nd gear. Thanks!
clongo
Posts: 1050
Joined: Nov 21, 2009 10:58 PM
Location: Raleigh, NC

Post by clongo »

No prob. Do you still need that timing map?
Patrick McHugh
Posts: 4163
Joined: Feb 12, 2006 12:00 PM
Location: Richmond, VA

Post by Patrick McHugh »

clongo wrote:No prob. Do you still need that timing map?
Sure! I appreciate it.
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