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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 08-21-2019, 08:58 PM   #7441
bernardo774
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Quote:
Originally Posted by Mon_Spain View Post
I am sorry, I thought that you had readed before that I have a twin screw.



Ok, I already read that the maf tables for M54B25 go only to 800kg/h.
It seems that I am arriving to the limit.

The new question is:
If I scale the maf table with M54B30 values, will the ECU has real values.
Or is too much important the higher size of M54B30 tube after MAF?
And for scale this MAF maps, will I should use 512bin?
the ecu had a max limit maf read about 830 kg/h
you need to unlock this

in 00056 firmware was in 0x738
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Old 08-22-2019, 04:52 AM   #7442
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Originally Posted by bernardo774 View Post
the ecu had a max limit maf read about 830 kg/h

you need to unlock this



in 00056 firmware was in 0x738


Is there also such a max limit map for the maf read in the MS42?


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Old 08-22-2019, 06:55 AM   #7443
bernardo774
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Is there also such a max limit map for the maf read in the MS42?


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yes, same as MS43

the problem was the Engine Load, max limite is 1.300.
i think this was not editable
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Old 08-22-2019, 10:54 AM   #7444
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Need explanation
we are planing to install 2zj-fse to e39(46) and run ms43 with turbo ofcourse, reason - 2jz-fse are quite cheap in russia 500Eur for hole engine aprox

to use ms43 on 2jz we have to make trigger wheels for crank-camshafts
the question is
Funktionsbeschreibung_MS42.pdf on page 58 says TDC position is defined on the NC_NR_TOOTH_GAP_TPC+1 which is 15th tooth
but this is true for second cylinder not for first.
does this mean that all other data regarded to second cylinder?
mostly interested camshaft synchronization
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Old 08-22-2019, 10:56 AM   #7445
Mon_Spain
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Quote:
Originally Posted by bernardo774 View Post
the ecu had a max limit maf read about 830 kg/h
you need to unlock this

in 00056 firmware was in 0x738
Hello bernardo, I have readed in this place and in my bin is writed
1050 kg/h.
After I look other place called "c_maf_max" and it has write 801 mg/stk.

The problem in my case is that I do not know how to change the maf definition axis for the maximun volts will be 5v, in my bin the maximun is 3,78.

Someone know instruct me how to do please?

Last edited by Mon_Spain; 08-22-2019 at 11:01 AM.
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Old 08-22-2019, 01:59 PM   #7446
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Quote:
Originally Posted by Mon_Spain View Post
Hello bernardo, I have readed in this place and in my bin is writed
1050 kg/h.
After I look other place called "c_maf_max" and it has write 801 mg/stk.

The problem in my case is that I do not know how to change the maf definition axis for the maximun volts will be 5v, in my bin the maximun is 3,78.

Someone know instruct me how to do please?
it's not real voltage. you don't have to change it.
what is your problem?
if you have b25 maf it cant read 1024kg/h.
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Old 08-23-2019, 04:53 AM   #7447
Blu302
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Quote:
Originally Posted by Kyrazh View Post
Need explanation
we are planing to install 2zj-fse to e39(46) and run ms43 with turbo ofcourse, reason - 2jz-fse are quite cheap in russia 500Eur for hole engine aprox

to use ms43 on 2jz we have to make trigger wheels for crank-camshafts
the question is
Funktionsbeschreibung_MS42.pdf on page 58 says TDC position is defined on the NC_NR_TOOTH_GAP_TPC+1 which is 15th tooth
but this is true for second cylinder not for first.
does this mean that all other data regarded to second cylinder?
mostly interested camshaft synchronization
The TDC marker is 15 teeth away from TDC.

The DME counts the missing tooth and then it knows TDC will be after 15 teeth. The DME needs time to implement the control strategy before TDC arrives and the marker is 15 teeth early to allow for this.

The easiest way to check is to put the engine at TDC #1 and count the teeth from the sensor to the missing tooth.
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Last edited by Blu302; 08-23-2019 at 04:54 AM.
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Old 08-23-2019, 07:53 AM   #7448
bernardo774
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have someone upgrade to 00069???

i do this and now can`t access knock tables adaptions in romraider logger
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Old 08-23-2019, 07:55 AM   #7449
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Originally Posted by bernardo774 View Post
have someone upgrade to 00069???

i do this and now can`t access knock tables adaptions in romraider logger
there isn't definition file for v69 in romraider
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Old 08-23-2019, 08:03 AM   #7450
Harry_de_best
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Originally Posted by bernardo774 View Post
have someone upgrade to 00069???

i do this and now can`t access knock tables adaptions in romraider logger
What version works with Romraider? I've never been able to see the knock adpatation tables with MS43 in romraider
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Old 08-23-2019, 08:20 AM   #7451
bernardo774
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Quote:
Originally Posted by Harry_de_best View Post
What version works with Romraider? I've never been able to see the knock adpatation tables with MS43 in romraider
00056

try change the protocol to DS2, works great when use the 00056
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Old 08-26-2019, 04:28 AM   #7452
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Could anybody tell me please how to convert volts into bar, kpa, psi or lambda, afr?:
Wiki says:
Quote:
The sensors can be read by INPA, RomRaider, TunerPro or any other logging program. Just make sure, that you input the matching formula to convert volts into bar, kpa, psi or lambda, afr.
Where may i change this formula?

I have innovate SCG-1(AFR/MAP) i want to have this readings in rear lambdaprobes.

How can i change formula in INPA or test-0 or any program, once i connect to rear lambdaprobes?
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Old 08-26-2019, 04:28 AM   #7453
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double

Last edited by Iliyasuper; 08-26-2019 at 05:51 AM.
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Old 08-27-2019, 03:27 PM   #7454
bernardo774
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Originally Posted by stefm5 View Post
there isn't definition file for v69 in romraider
i hope then soon do for 69
much better then 56
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Old 08-28-2019, 12:51 AM   #7455
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For those wanting to run E-85 or need help with some basics specifically N.A but some F.I will need some as below. I have driven on E-85 for about 5 years now and only recently have tuned it. I have the M54b25 MS43 325xi wagon with the 3.0 injectors and have not had a problem with any of fuel lines or pump breaking clogging ect ect. Still runs on stock system at 51 psi with normal filter and have never had a problem. Even left car sit for a few weeks starts right up (no water). Running ethanol 85 percent or below should not be a problem even with stock injectors (N.A of couse). On my setup the highest duty is around 85% or lower at 6500 rpm full load. Raising fuel pressure would help as well. I did have to tune for closed loop lambda 1 only increasing ms of the injector by 1 to 2 for all maps roughly. warm and cold driving maps are identical stock fuel trim values(within 1%). Ignition map 98 ron on part load low rpm and low load high rpm i increased ignition advance by 1 degree as gas and ethanol share same flame speeds at low load/rpm. While the rest of the map received and increase of 3 degrees where timing was pulled for knock on 93. (I would not touch any of the lower Ron maps as they are there for fallback in case of knock and fuel discrepancies). I Saw little bit of improvement through out the rev range. I tested multiple configs ranging from +6 Adv on the whole map to retarding the whole map produced small results usually worse than stock. The current config now is a little more snappy and in high rpm/load "keeps going". (results may vary for you). In cold climates where temps will be around or below 32 F or 0 C becomes a little more troublesome. to start you need to increase fuel on cranking,after run roughly 50% more fuel or less( Not too much as you would be flooding the engine and wasting fuel). Increasing Idle rpm on low temps to around 1k will help. As a result of ethanol's more fuel needs and slower flame speed I recommend advancing starting and warm up or after start ignition until car starts on first crank or comes close(Stumbles then picks up). As stated in the thread before when car starts cold it runs more retard for CAT heating. This will need to be either off or changed so timing is advanced when cold start. Same goes for the vanos. Close valve overlap at idle and start/low load. As for knocking I have not seen any during cruise or WOT 31.5Adv(Intake 130F and 199-188 coolant temp) i hit the maps target with no retarding. I also adjusted Temperature correction based on intake temp and coolant temp. Where it shows a retard on 40C and 50C intake temp and 80C and 95C coolant temp i set to 0.( as ethanol is less dense and helps cool cylinder down and resist knock during compression) I would not touch anything hotter as at that point your engine is overheating and the air its sucking is fire and even with E85 you could knock. (adjust for your region) No other settings were touched keeping integrity of the knock system working as stock. If you are tuned for E-85 "do not put normal gas in" as you could flood engine or worse. If you want the full benefits from E-85 or higher, either high compression or F.I will give best results. The info listed above was a summary on my cars setup and testing and could point you in the right direction.
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Old 08-28-2019, 01:01 AM   #7456
Kmart-Kid
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If anyone wants maps or more help with E-85 I can share what i have and know. The only info i dont know is WOT fuel enrichment I know it needs to be around 0.86 to 0.90 lambda however i dont have a meter as i run stock exhaust. So far removing fuel and adding fuel show no results. Also heard that during WOT enrichment with gas it cools the cylinder down and guarantees 100% burn of the oxygen. With ethanol this is not needed as ethanol already cools a good bit so achieving 100% burn of the air is ideal. Thanks
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Old 08-28-2019, 08:35 AM   #7457
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Quote:
Originally Posted by bernardo774 View Post
i hope then soon do for 69
much better then 56
It's on my todo list, I have all the ram addresses I think, the problem is me being too dump to get along with the XML file


By the way, anyone of you running a 323i? Take a look here: https://www.ms4x.net/index.php?title=M52TUB25_Tuning

I'm currently creating a tuning guide to push the 323 to 325 power, that's around 22 free horsepower IF THAT WILL WORK.

This will get trashed when its not working, so please consider this a draft-only. Otherwise a 325i power level file will make it to the wiki
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Old 08-28-2019, 08:44 AM   #7458
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My 323i MS42 vanos maps are the same as my X3(325i) MS45.
The ignition was the same also.
The idle and cranking maps were different in both vanos and ignition.

The only real difference is what you have on the wiki and the vanos maps above 5500rpm
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Old 08-28-2019, 08:46 AM   #7459
bernardo774
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Quote:
Originally Posted by sda2 View Post
It's on my todo list, I have all the ram addresses I think, the problem is me being too dump to get along with the XML file


By the way, anyone of you running a 323i? Take a look here: https://www.ms4x.net/index.php?title=M52TUB25_Tuning

I'm currently creating a tuning guide to push the 323 to 325 power, that's around 22 free horsepower IF THAT WILL WORK.

This will get trashed when its not working, so please consider this a draft-only. Otherwise a 325i power level file will make it to the wiki
WOW!!!

I have done this, i copied the MS43 B25 base map to MS42 B23 base map.
But the most diference was the exhaust (in 323 is singe and 325 double) and the Intake. Without this, the power is not complete. attached 323 vs 325 intake

my project car was 328 1998/1999.
i start with headers, 330 full exhaust and B25 intake manifold.
currently make B30 internals, B30 manifold with TBi and MS43 Swap in this car.

i like the gains every stage
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Last edited by bernardo774; 08-28-2019 at 08:49 AM.
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Old 08-28-2019, 08:53 AM   #7460
sda2
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E46 323i is always dual vanos as its alway M52TU.

VANOS maps are definitely different above the DISA limit and maybe even the part load is some how restricted by the cosing flap of the DISA.

I have access to a 323i in the next time, so I will test and log this for sure.

If this will show success, it's the perfect prove, that the 328i is limitted so much by cams and intake manifold.
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