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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 08-07-2016, 02:07 AM   #1
daniel_f.
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Reducing # of maps (MS43)

After digging through the code of MS43 and comparing different files, i thought it would be a good idea to reduce the number of maps that are used for injection, vanos and even ignition. Having dozens of usable maps may be pretty clever if you can tune for almost any possible situation, but my experience tells me this isnt needed. Especially if one wants to go FI or NA, its much easier to tune with a reduced amount of maps.

So, the following will happen in the next days:

Injection at idlespeed will be handled by ip_ti_tco_1_is_ivvt__n__maf exclusively, part-load will be handled by ip_tib__n__maf. Full-load is untouched!

Ignition at idlespeed will be handled by ip_igab_is__n__maf exclusively, the rest of the engine states will be handled by ip_igab__n__maf.

Vanos at idlespeed will be handled by IP_CAM_SP_tco_1_IN_IS/IP_CAM_SP_tco_1_EX_IS, at part-load it will be IP_CAM_SP_tco_1_IN_PL/IP_CAM_SP_tco_1_EX_PL and at full-load it will be IP_CAM_SP_tco_1_IN_FL/IP_CAM_SP_tco_1_EX_FL

Not only will this reduce confusion, itll also save up a huge amount of code and map-space which could be used for further tweaking.


I double checked for faults so im pretty shure its all up and running but make shure to test it on closed roads first!

https://drive.google.com/open?id=0By...WJPX29URlVXVFU
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Last edited by daniel_f.; 08-13-2016 at 12:52 AM.
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Old 08-07-2016, 02:48 AM   #2
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Very nice
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Old 08-08-2016, 12:29 AM   #3
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i can see this has been done in the alpina bin i have. so much is just zeroed out with only 1 fuel/ignition map populated etc.
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Old 08-08-2016, 12:54 AM   #4
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Yeah! Thank you very much Daniel!

Does this require 512kByte flash and is it compatible with MAF hack?
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Old 08-08-2016, 01:15 AM   #5
daniel_f.
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Yes to both.
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Old 08-08-2016, 02:08 AM   #6
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If you need someone for verifying it, just send me the file, I got some free time this afternoon
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Old 08-08-2016, 03:37 AM   #7
daniel_f.
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Problem is i modified my ISAoff tune for it So you would need to unchange them.
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Old 08-08-2016, 04:08 AM   #8
sda2
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Is it possible to offer different fullflash versions? Like:

1. EWSdelete, CHK5off
2. EWSdelete, CHK5off, LaunchControl
3. EWSdelete, CHK5off, SimpleMap
4. EWSdelete, CHK5off, LaunchControl, SimpleMap


Did you edit the ISA maps like in the wiki? Then I could easily revert it.
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Old 08-08-2016, 04:13 AM   #9
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Yes i did and yes, there will be. Just need to wait for our babygirl to get born in the next hours
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Old 08-08-2016, 04:26 AM   #10
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Take the time you need and my best wishes for you three!
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Old 08-08-2016, 08:46 AM   #11
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False alert at the doctor, so i took the chance to test it and it went smooth as stock So yes, its working perfectly
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Old 08-08-2016, 09:46 AM   #12
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Giev BIN please
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Old 08-11-2016, 06:07 AM   #13
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great idea!
is it available for download?
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Old 08-11-2016, 12:15 PM   #14
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Not yet, i prepare the files for all engines and upload them
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Old 08-11-2016, 12:33 PM   #15
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for someone it would great to reduce some more maps
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Old 08-11-2016, 11:45 PM   #16
daniel_f.
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Quote:
Originally Posted by Kyrazh View Post
for someone it would great to reduce some more maps
What more maps?
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Old 08-12-2016, 09:26 PM   #17
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Awesome info!!!
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Old 08-13-2016, 12:54 AM   #18
daniel_f.
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Files are available for download in the first post

Id tweak the xdf file a bit so that the no longer maps arent shown, but thats up to everyones own taste.
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Old 08-14-2016, 10:29 AM   #19
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Quote:
Originally Posted by daniel_f. View Post
What more maps?
i can only say from my point of view....
1. my e39 has a manual gearbox, and i'm not sure if anything with torque and torque limitation is needed...
2. full load detection... why don't use only by throttle
3. i'm not sure about heating up catalysators by ingnition and injection after engine start. actually my car doesnt have any catalysators and i've switched heating up off by settings...
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Old 08-16-2016, 02:57 AM   #20
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Daniel, could you add a new feature to your soft? It would good if ms43 will store an error or something in case of knock with information about speed, load and ect...
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