Twin BCS tuning?
Thread Starter
Joined: Feb 2007
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From: Melbourne, Australia
Twin BCS tuning? (88570008 V5 mod info)
Hi Guys,
In preparation for my V5 release I am doing up some base ROM's before I post the thread.
Now ROMID 88570008 (UK FQ Evo's) have 6 Base/Max WasteGate Duty Cycle tables, jcsbanks confirmed they are twin solenoid BCS's.
I am interested to find out how most people tune these 6 tables, are all 6 set the same, or are the 2 sets set the same (ie 1,2 and 3 are the same, and 4,5 and 6 are the same but different to 1,2,3)
Cheers
Dave.
In preparation for my V5 release I am doing up some base ROM's before I post the thread.
Now ROMID 88570008 (UK FQ Evo's) have 6 Base/Max WasteGate Duty Cycle tables, jcsbanks confirmed they are twin solenoid BCS's.
I am interested to find out how most people tune these 6 tables, are all 6 set the same, or are the 2 sets set the same (ie 1,2 and 3 are the same, and 4,5 and 6 are the same but different to 1,2,3)
Cheers
Dave.
Last edited by tephra; Apr 10, 2008 at 07:18 PM.
So is this like having two boost controllers that you can switch to? Like you could have one with a different pill so when using your map switching patch on can be for stock boost and the other for very high boost levels???? I'd be alll about that!
I believe only the 8 MR FQs and 9 FQs have the twin (port?) solenoid. I was certainly advised by John Banks amongst others to upgrade my solenoid when mapping.
From what I've seen, a lot of owners in the UK go for electronic controllers (presumably with their own solenoid), particularly the AVC-R, in any case.
From what I've seen, a lot of owners in the UK go for electronic controllers (presumably with their own solenoid), particularly the AVC-R, in any case.
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There are seven in all, and in the latest xml I sent to you they are labelled 1-7 in the order they are found in the ROM. One or more I think are unreferenced from the code IIRC.
As the cars are standard, #1,3,4,6 are set to 100% across the board. #2,5,7 are less than 100% and are modified during mapping. Everyone seems to keep the values the same within each set.
If you upgrade to a single 3 port solenoid you can use #2,5,7 to control it. ECU doesn't mind if the solenoids are unplugged.
I suppose to kill the boost fully back to wastegate pressure for methanol injection failsafe you'd want to have control of the two sets in your patch.
If you just want to collapse #1,3,4,6 into one map and #2,5,7 into another that is fine.
This twin solenoid setup applies to all JDM 8 MR and all JDM 9.
The UK FQ models are based on the JDM models.
As the cars are standard, #1,3,4,6 are set to 100% across the board. #2,5,7 are less than 100% and are modified during mapping. Everyone seems to keep the values the same within each set.
If you upgrade to a single 3 port solenoid you can use #2,5,7 to control it. ECU doesn't mind if the solenoids are unplugged.
I suppose to kill the boost fully back to wastegate pressure for methanol injection failsafe you'd want to have control of the two sets in your patch.
If you just want to collapse #1,3,4,6 into one map and #2,5,7 into another that is fine.
This twin solenoid setup applies to all JDM 8 MR and all JDM 9.
The UK FQ models are based on the JDM models.
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Thread Starter
Joined: Feb 2007
Posts: 9,486
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From: Melbourne, Australia
Guys just resurrecting an old thread here in preparation for a V5 of 88570008, I have emailed John a replacement section of XML, with his approval it will be integrated into the main 88570008.xml, here it is for you other guys to see, hopefully it will make more sense this way:
Code:
<table name="Max Wastegate Duty #1/1" category="Turbo" address="38ac" type="2D" scaling="WGDuty">
<table name="RPM" address="62b6" type="Y Axis" elements="16" scaling="RPM"/>
</table>
<table name="Max Wastegate Duty #1/2" category="Turbo" address="38ee" type="2D" scaling="WGDuty">
<table name="RPM" address="62b6" type="Y Axis" elements="16" scaling="RPM"/>
</table>
<table name="Max Wastegate Duty #1/3" category="Turbo" address="391a" type="2D" scaling="WGDuty">
<table name="RPM" address="62b6" type="Y Axis" elements="16" scaling="RPM"/>
</table>
<table name="Max Wastegate Duty #2/1" category="Turbo" address="38c2" type="2D" scaling="WGDuty">
<table name="RPM" address="62b6" type="Y Axis" elements="16" scaling="RPM"/>
</table>
<table name="Max Wastegate Duty #2/2" category="Turbo" address="3904" type="2D" scaling="WGDuty">
<table name="RPM" address="62b6" type="Y Axis" elements="16" scaling="RPM"/>
</table>
<table name="Max Wastegate Duty #2/3" category="Turbo" address="3930" type="2D" scaling="WGDuty">
<table name="RPM" address="62b6" type="Y Axis" elements="16" scaling="RPM"/>
</table>
Last edited by tephra; Apr 10, 2008 at 07:16 PM.
Also just a side note!
RC developments have made a twin turbo setup for the IX. This will be released in a couple months.
Would it not be worth making all 7 wastegate duty cycles available for map switching?
Just thinking out loud for future proof. We could have 2 BCS 3 ports, 1 for each turbo??? Running at different levels???
Dave - Thanks for the Effort!
Regards
SK
RC developments have made a twin turbo setup for the IX. This will be released in a couple months.
Would it not be worth making all 7 wastegate duty cycles available for map switching?
Just thinking out loud for future proof. We could have 2 BCS 3 ports, 1 for each turbo??? Running at different levels???
Dave - Thanks for the Effort!
Regards
SK