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E60 M5 and E61 M5 Touring Discussion 2005- Advertiser's Forum

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post #21 of 34 Old 18th February 2019, 07:19 AM
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Quote:
Originally Posted by Ferris View Post
Just because I had it open when I got the thread email, here is the difference btw sport and normal x is rpm y for simplicity is pedal.

How can i modify these parameters myself?

M5 E60 Silverstone, evolve tune, eventuri intake
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post #22 of 34 Old 18th February 2019, 02:19 PM
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So am I right in summarizing that in Sport the torque requested (throttle pedal) and torque demanded has a direct 1:1 relation, and in the Normal setting below 20% torque request and 2000 rpm engine speed, the normal setting trims the torque demand, yet above that it increases the torque demand? That is very strange.

So I was trying to keep it simple last night and to be 100% honest I have never tested these maps before, I never really saw a need personally so I just never did. Most of this is deduction, detective work and testing. There are actually 3, well 4 but one is for limp mode, Normal, Comfort and Sport. Sport is obvious but I'm not sure which is used in P500 vs P400 mode (comfort v normal) simply because its not really be on my radar. To make things more confusing there is another 3 maps that influence these maps and these chain up to another 3 or 4, that then can be overrode by DSC, SMG ect ect . And theses are all shared with E9x M3 so some might not be applicable based on the config. So it's lot to figure out. Regardless I here are all three.


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Originally Posted by Craze View Post
How can i modify these parameters myself?

First you'll need a KESS OBDII version, the BDM is pain if you're just tweaking maps or an FGTech V4. Clones work fine unless you have the cash for the real deal(100 vs 1000s). Though I have an FGTECHV4 clone and the software is hacked from china and it triggers virus warnings. So I never used it, though both run in VMs for me since I really don't trust anything from china any way.


There is a way to tweak the WINKFP files but I never attempted it.


It would be nice to restart the whole tuning effort, I was sad to see what happened to the original effort. Sadly I bought a new house at the time and couldn't dedicate time to posting by the time I came back it was dead. The granddaddy of all this, the E49 M3 guys, really worked well together, shared knowledge, and showed what was best about it all, COMMUNITY and Passion for the car, wish that happened here too.
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2001 E36/7 MRoadster
2001 E39 M5
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post #23 of 34 Old 18th February 2019, 02:55 PM
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You need to code competition mdm. It's good enough to leave it on at the track.[/QUOTE]

Oh man! How do i code competition mdm? Sounds like just the thing i need. Thanks man.

2006 E60 M5 with supersprint headers, mid pipe, and muffler without cat. Evolve R stage 3 tune.
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post #24 of 34 Old 18th February 2019, 03:05 PM
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You need to code competition mdm. It's good enough to leave it on at the track.

Oh man! How do i code competition mdm? Sounds like just the thing i need. Thanks man.

Since I derailed your thread


https://www.m5board.com/vbulletin/e6...g-e60-e61.html

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Last edited by Ferris; 18th February 2019 at 03:10 PM.
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post #25 of 34 Old 18th February 2019, 06:01 PM
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Originally Posted by Ferris View Post
There are actually 3, well 4 but one is for limp mode, Normal, Comfort and Sport. Sport is obvious but I'm not sure which is used in P500 vs P400 mode (comfort v normal) simply because its not really be on my radar. To make things more confusing there is another 3 maps that influence these maps and these chain up to another 3 or 4, that then can be overrode by DSC, SMG ect ect .
I seem to recall Jim stating P400 is achieved by pulling timing.

Weird that all maps request 100% torque at WOT. P400 obviously does not.

Interesting stuff, guess I have to re-read the whole thread.
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post #26 of 34 Old 18th February 2019, 06:02 PM
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Originally Posted by flacoramos View Post
I seem to recall Jim stating P400 is achieved by pulling timing.

Weird that all maps request 100% torque at WOT. P400 obviously does not.

Interesting stuff, guess I have to re-read the whole thread.

P400 is simply an 80% torque limiter, that varies a bit based on RPM , it ranges from 88%(low rpm) to ~79%(High RPM)


Maps are some what chained together.. Think something like


Pedal Map ->Driver Torque wish->Momentum manager Decides what it'll allow based on P400 mode vs P500, Current Road speed, DSC/SMG Requests ect ect




**Edit when I say chained, I should say different tasks(threads/functional groups/whatever you want to call it) use their own maps for certain functions that then generate an output that are used by others. I hope that clarifies it a bit.

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Last edited by Ferris; 18th February 2019 at 06:22 PM.
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post #27 of 34 Old 18th February 2019, 06:38 PM
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Quote:
Originally Posted by Ferris View Post
P400 is simply an 80% torque limiter, that varies a bit based on RPM , it ranges from 88%(low rpm) to ~79%(High RPM)


Maps are some what chained together.. Think something like


Pedal Map ->Driver Torque wish->Momentum manager Decides what it'll allow based on P400 mode vs P500, Current Road speed, DSC/SMG Requests ect ect




**Edit when I say chained, I should say different tasks(threads/functional groups/whatever you want to call it) use their own maps for certain functions that then generate an output that are used by others. I hope that clarifies it a bit.
Yes, I've tuned some megasquirt systems so I get what you mean. The pedal map is obviously not where the P400 restriction lies.
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post #28 of 34 Old 19th February 2019, 12:04 AM Thread Starter
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Quote:
Originally Posted by Ferris View Post
So I was trying to keep it simple last night and to be 100% honest I have never tested these maps before, I never really saw a need personally so I just never did. Most of this is deduction, detective work and testing. There are actually 3, well 4 but one is for limp mode, Normal, Comfort and Sport. Sport is obvious but I'm not sure which is used in P500 vs P400 mode (comfort v normal) simply because its not really be on my radar. To make things more confusing there is another 3 maps that influence these maps and these chain up to another 3 or 4, that then can be overrode by DSC, SMG ect ect . And theses are all shared with E9x M3 so some might not be applicable based on the config. So it's lot to figure out. Regardless I here are all three.





First you'll need a KESS OBDII version, the BDM is pain if you're just tweaking maps or an FGTech V4. Clones work fine unless you have the cash for the real deal(100 vs 1000s). Though I have an FGTECHV4 clone and the software is hacked from china and it triggers virus warnings. So I never used it, though both run in VMs for me since I really don't trust anything from china any way.


There is a way to tweak the WINKFP files but I never attempted it.


It would be nice to restart the whole tuning effort, I was sad to see what happened to the original effort. Sadly I bought a new house at the time and couldn't dedicate time to posting by the time I came back it was dead. The granddaddy of all this, the E49 M3 guys, really worked well together, shared knowledge, and showed what was best about it all, COMMUNITY and Passion for the car, wish that happened here too.

Fascinating - thanks for sharing! I have in the long past played with tuning of aftermarket ECUs, but never been game enough to try it on OEM ECUs.


Also - The Competition MDM is something I have never heard of, seems like something I would enjoy but I am honestly too intimidated by the thought of bricking something to try it myself.
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post #29 of 34 Old 19th February 2019, 01:34 AM
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Fascinating - thanks for sharing! I have in the long past played with tuning of aftermarket ECUs, but never been game enough to try it on OEM ECUs.


Also - The Competition MDM is something I have never heard of, seems like something I would enjoy but I am honestly too intimidated by the thought of bricking something to try it myself.
Coding is fairly benign if you follow the guides out there, very little room for error and can be easily recovered if need be.

Well when I first starting workin on the tuning part I bought a ebay dme as my guinny pig, some how I started collecting them and even bought another 2 weeks. I suppose one day I'll build fort out of them or maybe wipe them and sell them, just waiting for some emp to take out all the dmes in the country

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post #30 of 34 Old 28th February 2019, 02:06 AM Thread Starter
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By way of a quick update: I sent my car in last week for an oil change plus driveline fluids change (SMG hydaulic fluid, gearbox fluid, and diff oil). So glad I did, as apparently the diff oil was black/brown and the gearbox fluid not much better. Even worse still, it looks like a BMW dealership in their infinite wisdom used gearbox fluid in the SMG hydraulic circuit - this would have happened when the clutch was replaced at 100,000 km (55,000 km ago).
So good news there.


However, what makes this story relevant to this thread is that the car started stalling while it was at the mechanics. Long story short, the issue was traced back to a faulty fuel pump, a clogged filter, and a gunky fuel tank. What makes this strange is that the car certainly has not felt down on power, at least not at the top end, nor has it stalled.

I am picking the car up this afternoon, but I am wondering if in fact this may help explain what I perceived as a lack of low-end grunt?


For reference I have never pushed the car much past the top end in 2nd gear
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