Boost Error Gone Wild
EvoM Guru
iTrader: (50)
Joined: Mar 2006
Posts: 9,675
Likes: 132
From: Tri-Cities, WA // Portland, OR
Last edited by mrfred; Sep 16, 2007 at 10:33 PM.
Let me ask this question:
If I tune with the TBEC zeroed out:
1. Should I start with a conservative WGDC. Something like this:
100---1000 rpm
100
65.5
54.5
53.5
53.5
53
52.5
52.5
50
54
54
61
62.5
78.5
81.5---7500 rpm
2. If I hit my target boost and re-introduce the TBEC table that mrfred created, then why wouldn't the good boost/bad boost phenomena happen again?
Thanks guys
If I tune with the TBEC zeroed out:
1. Should I start with a conservative WGDC. Something like this:
100---1000 rpm
100
65.5
54.5
53.5
53.5
53
52.5
52.5
50
54
54
61
62.5
78.5
81.5---7500 rpm
2. If I hit my target boost and re-introduce the TBEC table that mrfred created, then why wouldn't the good boost/bad boost phenomena happen again?
Thanks guys
Evolving Member
Joined: Feb 2006
Posts: 264
Likes: 6
From: Vancouver, BC
I'm suprised no one mentioned this, so i thought I'd bring this thread back from the dead. I noticed that nj1266 has been altering the Baseline Boost #2 table.
Based on what I've read as per mrfred's instructions in the how-to: ECU-based direct boost control thread he states:
This might be the source of your problem.
Based on what I've read as per mrfred's instructions in the how-to: ECU-based direct boost control thread he states:
The Baseline table maxes out at 24.6 psi (just like BDEL maxes out at 159.1), so for this example, one possible solution would be to set the peak value in the Baseline Boost table to 24.6 psi, and then set the Boost Adder to 40.7 - 24.6 = 16.1 psi. Hope that's a useful example. There are three Baseline Boost tables just as there are three BDEL tables, but really only table #1 needs adjusting.
No it is not the source of the problem. The source of the problem is that direct ECU boost control does NOT work with the restrictor pill method. mrfred and I tried to make it work, but we failed. It works with the GM 3 port solenoid and the boost bleeder method that mrfred uses to control boost, but it does not work with the restrictor pill in the boost line method.
No it is not the source of the problem. The source of the problem is that direct ECU boost control does NOT work with the restrictor pill method. mrfred and I tried to make it work, but we failed. It works with the GM 3 port solenoid and the boost bleeder method that mrfred uses to control boost, but it does not work with the restrictor pill in the boost line method.
I'm using direct control, stock solenoid, #60 pill.... JDM MAP and targetting 25psi. It seems to work fine for me.
Ok, so to run direct boost control you're changing the configuration of the wastegate lines then? Sorry, my previous post was under the assumption they were still in the stock "T" bleed off style config.
Using a different pill does not change the configuration of the lines.