Tactrix Boost Control Solenoid (Plug-n-Play for Mitsu)
Yeah, me and MR Evo IX are using the AEM solenoid. Look in my posts or the 3 port thread for our info.
Also, anybody looking for table info... there is a ton of information in the 3 port and JDM MAP direct boost control threads (even if you don't have either).
Also, anybody looking for table info... there is a ton of information in the 3 port and JDM MAP direct boost control threads (even if you don't have either).
I'm still struggling to get this stuff 
I don't get why some maps have the first few columns set to 159.4/100.. some have more columns set to this some less.
I finally did get a good log of 3rd gear so I have some data to learn from. I'm missing out on a good chunk of tq though I'm looking for 22psi spike and hold as much as possible up top.
I don't get why some maps have the first few columns set to 159.4/100.. some have more columns set to this some less.I finally did get a good log of 3rd gear so I have some data to learn from. I'm missing out on a good chunk of tq though
I'm looking for 22psi spike and hold as much as possible up top.
Set all the tables the same.
Also looks like you are getting some correction past 6k. Your BDEL is too low.
Match your BDEL to your load. Have you changed the boost variable yet?
Also looks like you are getting some correction past 6k. Your BDEL is too low.
Match your BDEL to your load. Have you changed the boost variable yet?
What do you mean set all tables the same? The first maxed out colums of the BDEL and MWGD tables?
With my mods I'd expect a 260 spike on 22psi and probably tapering to 240 by 7500 rpm.
I've adjusted toe BDEL from 5500 up to better match load.
Variable for boost control is set to 0x895C from the other thread you mentioned. Also I'll add back error correction once this is good (obviously)
With my mods I'd expect a 260 spike on 22psi and probably tapering to 240 by 7500 rpm.
I've adjusted toe BDEL from 5500 up to better match load.
Variable for boost control is set to 0x895C from the other thread you mentioned. Also I'll add back error correction once this is good (obviously)
Last edited by justchil; Aug 1, 2008 at 07:38 PM.
What do you mean set all tables the same? The first maxed out colums of the BDEL and MWGD tables? With my mods I'd expect a 260 spike on 22psi and probably tapering to 240 by 7500 rpm.
I've adjusted toe BDEL from 5500 up to better match load.
Variable for boost control is set to 0x895C from the other thread you mentioned. Also I'll add back error correction once this is good (obviously)
I've adjusted toe BDEL from 5500 up to better match load.
Variable for boost control is set to 0x895C from the other thread you mentioned. Also I'll add back error correction once this is good (obviously)
Here is one example:
I removed these from my xml (#2-#4) for both sets of tables. I can add them back and make sure they are the same. Fixing it now!
I'm not sure what tutorial I was working on when I did this.
I'm not sure what tutorial I was working on when I did this.
Whew finally got my "Max Total Upward WGDC Correction vs TPS" table showing up.
This thread isn't really about the tuning aspect but holy crap is the info I need spread out and confusing.
This thread isn't really about the tuning aspect but holy crap is the info I need spread out and confusing.
Evolving Member
Joined: Jun 2005
Posts: 282
Likes: 5
From: Kuala Lumpur
Sorry to steal the topic, but this is related. I knew the GM boost solenoid doesn't come with harness but how the BCS wire up to ECU, specifically which ecu pin? I'm about to install Haltech BCS where there's 2 wire, 1 goes to 12v switched (no polarity) and another goes to EMS PWM output.
Newbie
Joined: Jan 2008
Posts: 25
Likes: 0
From: Switzerland
Dear razorlab, dear others
First of all, the values in the MWDC-table sould be as long as possible 100%. This means, the values should be 100% until 2500 RPM and from there you go rapidly down to around 60% for preventing boost-overshooting. Therefore it is helpfull to add some RPM-Lines to drive down the Turbo more smoothly and more exact. For example, my MWGD-table looks like:
.
.
.
2500 - 100
2625 - 82
2750 - 74
2875 - 63
3000 - 62
3250 - 61
3500 - 61
4000 - 62
5000 - 63
etc.
Why?
Because this gives you an incredible soon Spool-up with a peak boost long before 3000RPM in a high gear. With this fine-tuning, if done properly, you need only little values in the BEC-tabel. Attention, dont forget do check the ignition-values in the RPM-Lines 2500 and 3000, because now you will drive your spool-up in these areas. You will be astonished how deep you can go with your RPMs on the highway (highest gear) and how the engine will build up boost-pressure and torque (right after 2500RPM) and you can still easely accelerate your
car.
The other table is the BDEL-tabel. It should more look like this one (with a base of 100% and a desired boost of 250 until 5000RPM):
...
2000 - 150
2500 - 150
3000 - 150
3500 - 150
4000 - 150
4500 - 150
5000 - 150
5500 - 145
6000 - 140
6500 - 135
7000 - 130 (normaly, this table sould have the same scale as the above table - it's just a example)
Why?
The engine spools up that way a lot nicer and softer than trying to catch the values in the BDEL at around 2500RPM (with the MWGD-table) in order to correct all the way up with the BEC-table (in both direction up and down) and there is really no advantage to set the values different as shown up here.
The table Max Total Upward WGDCC sould also not be zeroed-out because of diff.
reasons:
- it is better drivable not to have the full power in lower TPS regions ( at around 60%, if you dont press the pedal completly)
- there is some air in the boost-system for different weather conditions for upward corrections if the values in the MWGD-table
are a little too small.
- smoother spool-up, cause it adds less to the MWGD - table or even it also can reduce these values
.
.
.
My table looks like:
0 - 0.0
13 - 0.0
25 - 0.0
38 - 0.0
50 - 0.0
62 - -2.0
75 - 0.0
88 - 2.0
100-2.0
The conclusion of all the tables above is, that the BEC-table can have verry low
values on both sides, the negative corrections and the positive correction:
-20.0 -2.0
-17.5 - 1.5
-15.0 - 1.5
-13.0 - 1.0
-10.9 - 1.0
-8.9 - 1.0
-6.8 - 0.5
-5.3 - 0.5
0.0 - 0.0
5.3 - 0.5
.
.
.
Furthermore, the tabel named WGDC correction upward delay should never have the value -1-!
Because the boost-system (Hardware) is not able to change as fast as the software wants. I suggest to fill in the
value -2-. It is fast enough to react on changing situations and it's slow enough not to overreact and
correct a certain point twice.
Try it out, it works fine!
Marcel
http://i41.photobucket.com/albums/e2...Evo9_Boost.jpg
Tuned by the Tacrtix plug n play Solenoid and Stock Turbo
I changed the start values of the BDEL like this and of course it works as well great
http://i41.photobucket.com/albums/e2...vo9_Boost2.jpg
Last edited by h101171; Aug 5, 2008 at 01:44 AM.
Nice post h101171!
What you're saying is exactly how my tuning is leading me....
My boost offset is 200.
My BDEL looks like this now (i'm still tweaking it)
59.375
59.375
59.375
59.375
59.375
59.375
59.375
45
61.25
76.25
76.25
55
55
55
45
40
My MWGD is like:
100
100
100
100
100
85
75
69
58
55
49
45
47
54.5
62
68
What you're saying is exactly how my tuning is leading me....
My boost offset is 200.
My BDEL looks like this now (i'm still tweaking it)
59.375
59.375
59.375
59.375
59.375
59.375
59.375
45
61.25
76.25
76.25
55
55
55
45
40
My MWGD is like:
100
100
100
100
100
85
75
69
58
55
49
45
47
54.5
62
68
Dear razorlab, dear others
First of all, the values in the MWDC-table sould be as long as possible 100%. This means, the values should be 100% until 2500 RPM and from there you go rapidly down to around 60% for preventing boost-overshooting. Therefore it is helpfull to add some RPM-Lines to drive down the Turbo more smoothly and more exact. For example, my MWGD-table looks like:
.
.
.
2500 - 100
2625 - 82
2750 - 74
2875 - 63
3000 - 62
3250 - 61
3500 - 61
4000 - 62
5000 - 63
etc.
Why?
Because this gives you an incredible soon Spool-up with a peak boost long before 3000RPM in a high gear. With this fine-tuning, if done properly, you need only little values in the BEC-tabel. Attention, dont forget do check the ignition-values in the RPM-Lines 2500 and 3000, because now you will drive your spool-up in these areas. You will be astonished how deep you can go with your RPMs on the highway (highest gear) and how the engine will build up boost-pressure and torque (right after 2500RPM) and you can still easely accelerate your
car.
The other table is the BDEL-tabel. It should more look like this one (with a base of 100% and a desired boost of 250 until 5000RPM):
...
2000 - 150
2500 - 150
3000 - 150
3500 - 150
4000 - 150
4500 - 150
5000 - 150
5500 - 145
6000 - 140
6500 - 135
7000 - 130 (normaly, this table sould have the same scale as the above table - it's just a example)
Why?
The engine spools up that way a lot nicer and softer than trying to catch the values in the BDEL at around 2500RPM (with the MWGD-table) in order to correct all the way up with the BEC-table (in both direction up and down) and there is really no advantage to set the values different as shown up here.
The table Max Total Upward WGDCC sould also not be zeroed-out because of diff.
reasons:
- it is better drivable not to have the full power in lower TPS regions ( at around 60%, if you dont press the pedal completly)
- there is some air in the boost-system for different weather conditions for upward corrections if the values in the MWGD-table
are a little too small.
- smoother spool-up, cause it adds less to the MWGD - table or even it also can reduce these values
.
.
.
My table looks like:
0 - 0.0
13 - 0.0
25 - 0.0
38 - 0.0
50 - 0.0
62 - -2.0
75 - 0.0
88 - 2.0
100-2.0
The conclusion of all the tables above is, that the BEC-table can have verry low
values on both sides, the negative corrections and the positive correction:
-20.0 -2.0
-17.5 - 1.5
-15.0 - 1.5
-13.0 - 1.0
-10.9 - 1.0
-8.9 - 1.0
-6.8 - 0.5
-5.3 - 0.5
0.0 - 0.0
5.3 - 0.5
.
.
.
Furthermore, the tabel named WGDC correction upward delay should never have the value -1-!
Because the boost-system (Hardware) is not able to change as fast as the software wants. I suggest to fill in the
value -2-. It is fast enough to react on changing situations and it's slow enough not to overreact and
correct a certain point twice.
Try it out, it works fine!
Marcel
Tuned by the Tacrtix plug n play Solenoid and Stock Turbo
First of all, the values in the MWDC-table sould be as long as possible 100%. This means, the values should be 100% until 2500 RPM and from there you go rapidly down to around 60% for preventing boost-overshooting. Therefore it is helpfull to add some RPM-Lines to drive down the Turbo more smoothly and more exact. For example, my MWGD-table looks like:
.
.
.
2500 - 100
2625 - 82
2750 - 74
2875 - 63
3000 - 62
3250 - 61
3500 - 61
4000 - 62
5000 - 63
etc.
Why?
Because this gives you an incredible soon Spool-up with a peak boost long before 3000RPM in a high gear. With this fine-tuning, if done properly, you need only little values in the BEC-tabel. Attention, dont forget do check the ignition-values in the RPM-Lines 2500 and 3000, because now you will drive your spool-up in these areas. You will be astonished how deep you can go with your RPMs on the highway (highest gear) and how the engine will build up boost-pressure and torque (right after 2500RPM) and you can still easely accelerate your
car.
The other table is the BDEL-tabel. It should more look like this one (with a base of 100% and a desired boost of 250 until 5000RPM):
...
2000 - 150
2500 - 150
3000 - 150
3500 - 150
4000 - 150
4500 - 150
5000 - 150
5500 - 145
6000 - 140
6500 - 135
7000 - 130 (normaly, this table sould have the same scale as the above table - it's just a example)
Why?
The engine spools up that way a lot nicer and softer than trying to catch the values in the BDEL at around 2500RPM (with the MWGD-table) in order to correct all the way up with the BEC-table (in both direction up and down) and there is really no advantage to set the values different as shown up here.
The table Max Total Upward WGDCC sould also not be zeroed-out because of diff.
reasons:
- it is better drivable not to have the full power in lower TPS regions ( at around 60%, if you dont press the pedal completly)
- there is some air in the boost-system for different weather conditions for upward corrections if the values in the MWGD-table
are a little too small.
- smoother spool-up, cause it adds less to the MWGD - table or even it also can reduce these values
.
.
.
My table looks like:
0 - 0.0
13 - 0.0
25 - 0.0
38 - 0.0
50 - 0.0
62 - -2.0
75 - 0.0
88 - 2.0
100-2.0
The conclusion of all the tables above is, that the BEC-table can have verry low
values on both sides, the negative corrections and the positive correction:
-20.0 -2.0
-17.5 - 1.5
-15.0 - 1.5
-13.0 - 1.0
-10.9 - 1.0
-8.9 - 1.0
-6.8 - 0.5
-5.3 - 0.5
0.0 - 0.0
5.3 - 0.5
.
.
.
Furthermore, the tabel named WGDC correction upward delay should never have the value -1-!
Because the boost-system (Hardware) is not able to change as fast as the software wants. I suggest to fill in the
value -2-. It is fast enough to react on changing situations and it's slow enough not to overreact and
correct a certain point twice.
Try it out, it works fine!
Marcel
Tuned by the Tacrtix plug n play Solenoid and Stock Turbo
I'm having a little trouble understanding everything there, but I'd like razorlab's opinions on your boost control techiques. I'm one of those people who gets "stuck" in 5th gear at 13psi when my correction table lowers things too much sometimes, but don't want to raise my baseline boost (direct boost control method) table and have alot of upward correction at the beginning.
