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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 05-23-2017, 11:34 AM   #3501
Mariosanchez55
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Quote:
Originally Posted by daniel_f. View Post
Not shure what a regular file is, but changing the file format of your file by hand shouldnīt be that hard?
Under properties, format says "file" not ".bin"
I tried converting it with poweriso but it wont let me either
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Old 05-23-2017, 11:48 AM   #3502
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Well, ask the company which developed that checksum tool then.
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Old 05-23-2017, 11:12 PM   #3503
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Sorry I wasn't able to keep up with the thread, but where did files without EWS delete go?
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Old 05-24-2017, 12:14 PM   #3504
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I have been looking around the software, can anyone tell me why the fuel map looks so flat and doesn't look like a normal fuel map. Is there a separate VE table?
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Old 05-24-2017, 06:25 PM   #3505
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It is not standalone ecu mate and doesn't work as Speed Density . It is flat because load value for this map came from MAF sensor, which measures exact mass of taken air.
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Old 05-24-2017, 10:58 PM   #3506
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Thanks volter,
In that case, how are these tuned for superchargers? Which maps need to be tuned? The maf vs engine speed?
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Old 05-24-2017, 11:52 PM   #3507
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So I see a lot of information about tunes for forced induction cars but I'm having a hard time finding much information on NA tunes. I have a 02 330i which I did a very basic tune with tunerpro (raised rpm, raised speed limiter, and etc.) I have catless headers, 3 inch exhaust, cold air intake, and 3.38 diff ratio... is there anything else that I can tune to make the car run better with the simple mods I've done? preferably to have more power in higher revs since I do have the short diff ratio on it, I feel like raising the redline to 6,900 doesnt help much since the car seems to loose power after about 6,300-6,400 rpm. any inputs on this? also I'm having problems with launch control it doesnt seem to work for me.
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Old Yesterday, 01:27 AM   #3508
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Quote:
Originally Posted by Siddy1200 View Post
Thanks volter,
In that case, how are these tuned for superchargers? Which maps need to be tuned? The maf vs engine speed?
Usually they remove a ton of spark advance to be on the safe side and flood the engine with fuel.
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Old Yesterday, 01:52 AM   #3509
Siddy1200
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Thanks Daniel f.
Are you saying that because the MS43 doesn't support a MAP sensor there is no way to get a really good FI tune?
I had a sc kit on my old 323 but it wasn't perfect, do you think the company that sold me the kit just increased the injection time on the fuel map across the board to make it safe?
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Old Yesterday, 03:12 AM   #3510
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Quote:
Originally Posted by Siddy1200 View Post
Thanks Daniel f.
Are you saying that because the MS43 doesn't support a MAP sensor there is no way to get a really good FI tune?
I had a sc kit on my old 323 but it wasn't perfect, do you think the company that sold me the kit just increased the injection time on the fuel map across the board to make it safe?
That is exactly what ESS did with the TS tunes I have fixed.

It is only the last load column that needs to be changed. Anything less than 600mg/stk is vacuum for the 3.0L.

The easiest way is to bump the last load column up to a load level above what the engine will see and then tune it in both spark and fuel to suit.
Then the DME will blend from 100% load(600mg/stk) up to say 200% load(1200mg/stk being the last load value).

You can adjust the vanos maps for no overlap in the same areas to stop blowing boost out the exhaust. (if the AFR gets richer after changing the vanos, more fuel is being held in the cylinder).
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Old Yesterday, 03:34 AM   #3511
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Originally Posted by Siddy1200 View Post
Thanks Daniel f.
Are you saying that because the MS43 doesn't support a MAP sensor there is no way to get a really good FI tune?
Absolutely no! There are people/companies out there that seem to do a very good job. Alpina tunes are usually the top of tuned files, but they have different engines in our E46īs.

Quote:
Originally Posted by Siddy1200 View Post
I had a sc kit on my old 323 but it wasn't perfect, do you think the company that sold me the kit just increased the injection time on the fuel map across the board to make it safe?
It wouldnīt surprise me if the tune didnīt even had the load axis raised. Usually they leave the axis stock, so whenever the engine goes into boost they just load it with fuel. That shows that this exact company or whoever did the tune for them doesnīt have had much of a clue about that engine.

Some even sold SC kits with resistors that needed to be wired in series with the maf signal wire! Instead of just doing a one hour tuning to the ecu ONCE, they do this kind of bullshit!
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Old Yesterday, 04:05 AM   #3512
Siddy1200
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Originally Posted by Blu302 View Post
The easiest way is to bump the last load column up to a load level above what the engine will see and then tune it in both spark and fuel to suit.
Then the DME will blend from 100% load(600mg/stk) up to say 200% load(1200mg/stk being the last load value).
Is this correct? (see attachment)

(ignoring the fact that there are multiple maps because of the vanos)
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Old Yesterday, 04:12 AM   #3513
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Well, you would want to start with raising the limits of the maf to get rid off any maf faults.

Followed by something like this:

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Old Yesterday, 04:49 AM   #3514
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Is this the table where the maf limit can be raised?

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Old Yesterday, 06:34 AM   #3515
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Quote:
Originally Posted by daniel_f. View Post
Absolutely no! There are people/companies out there that seem to do a very good job. Alpina tunes are usually the top of tuned files, but they have different engines in our E46īs.



It wouldnīt surprise me if the tune didnīt even had the load axis raised. Usually they leave the axis stock, so whenever the engine goes into boost they just load it with fuel. That shows that this exact company or whoever did the tune for them doesnīt have had much of a clue about that engine.

Some even sold SC kits with resistors that needed to be wired in series with the maf signal wire! Instead of just doing a one hour tuning to the ecu ONCE, they do this kind of bullshit!
call me asatronic
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Old Yesterday, 06:57 AM   #3516
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Originally Posted by Siddy1200 View Post
Is this the table where the maf limit can be raised?

c_maf_max
c_maf_max_diag
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Old Yesterday, 09:32 AM   #3517
daniel_f.
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Originally Posted by Siddy1200 View Post
Is this the table where the maf limit can be raised?

That map actually is mislabeled, should be called alpha/n map
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Old Yesterday, 12:19 PM   #3518
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Quote:
Originally Posted by Blu302 View Post
That is exactly what ESS did with the TS tunes I have fixed.

It is only the last load column that needs to be changed. Anything less than 600mg/stk is vacuum for the 3.0L.

The easiest way is to bump the last load column up to a load level above what the engine will see and then tune it in both spark and fuel to suit.
Then the DME will blend from 100% load(600mg/stk) up to say 200% load(1200mg/stk being the last load value).

You can adjust the vanos maps for no overlap in the same areas to stop blowing boost out the exhaust. (if the AFR gets richer after changing the vanos, more fuel is being held in the cylinder).
Ahhhhh I was wondering if the DME did interpolation. That makes it WAY easier, holy crap!

Good information in this thread!

Thanks to all you guys doing this. You're amazing!
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Old Yesterday, 02:11 PM   #3519
lupo4mot
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Originally Posted by mgh-e34 View Post
No other files are required. Go to post 2932 on page 147 for explanation.
Thanks, Tracing is Working

Another Question, what is this Function ? Log of the Fuel Trims like knock in Romraider ?
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Old Yesterday, 03:30 PM   #3520
Mariosanchez55
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i cant seem to find an ews delete for ms42... has anyone heard of anything? im dying to get this car going.
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