turbojohan
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« on: December 29, 2015, 01:13:12 PM »
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Hello,
I'm Johan and i'm new here.
Love how much info is on this forum and everyone helping eachother.
I think i can use a bit of your help with my project.
This is my first ME7 ecu i tune and it is not an easy project.
I've always only done diesels, so i know quite a lot about (chip)tuning.
The car is a euro R32 Golf MK4 with turbo and 1250 cc injectors on E85.
I'm trying to map it on a Pro-M 117 5" MAF
With the MAF you get a test report with the calibration.
So i put that in MLHFM and put MLOFS to 0.
I'm running it on a dyno with OLS300 simulator so i can change KRKTE during running to get into ballpark quite fast.
Problem is AFR is hard to get right..
When i get it good at low rpm it is way to lean on higher rpm/load.
When i get fuel right it should be quite ok everywhere i think..
Has anyone worked with big Pro-M MAF's on ME7's here?
Is this calibration always ok?
Does it run completly on MAF at low load or also on KFMSNWDK?
Looks a bit like it switches between those 2..
Hope you guys can give me a few pointers :-)
Johan
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ddillenger
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« Reply #1 on: December 29, 2015, 01:24:57 PM »
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Get a real MAF. One that doesn't require a 5" tube.
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
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turbojohan
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« Reply #2 on: December 29, 2015, 01:28:14 PM »
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It is a complete MAF:  Turbo is quite big (GTX4208R) so this fitted quite good and can support huge amount of airflow. But is this bad to use? Johan |
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ddillenger
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« Reply #3 on: December 29, 2015, 01:44:40 PM »
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An 85mm HPX can support 3600kg/h.
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
Email/Google chat:
DDillenger84(at)gmail(dot)com
Email>PM
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turbojohan
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« Reply #4 on: December 29, 2015, 01:54:53 PM »
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Ok thanks! I'll look into that. Flow will be enough with those  So the problems i have are normal with the Pro-M MAF i have here? |
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turbojohan
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« Reply #5 on: December 29, 2015, 02:01:29 PM »
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Does maybe someone has a MLHFM data i can use for a E46 M3 MAF?
That's the only big MAF i have laying around ATM.
Can't find calibration in M3 file because i have no good damos of those.
Than i'll order a HPX MAF when i don't get the pro-M working correctly..
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DT
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« Reply #6 on: December 29, 2015, 02:27:48 PM »
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are you familiar with TVUB?
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turbojohan
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« Reply #7 on: December 29, 2015, 02:45:23 PM »
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Yes, i thought if i leave it stock it will be quite ok to start with, but these injectors react a lot differently problebly..
What is best way to do this if you don't know how injector react on voltage?
Put whole map on 1 than try to keep afr straight on same load with different voltage or something?
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phil_84
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« Reply #8 on: December 29, 2015, 03:14:55 PM »
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Have a search for the data on the injectors, with the data will be the dead time to complete the TVUB map
Will also help you with the correct scaling for the KRKTE
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turbojohan
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« Reply #9 on: December 30, 2015, 01:10:04 AM »
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ok thanks.
i'll see if i can find the info.
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turbojohan
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« Reply #10 on: December 30, 2015, 02:49:16 PM »
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Did some research and it are ID1300 injectors. TVUB is a bit weird in damos. 4 different damos all don't have voltage in axis, only weird digits.. I think it should be factor 0,0704 than axis is 6v, 8v, 10v, 12v, 16v. This is injector data: http://injectordynamics.com/injectors/id1300/ |
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black
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« Reply #11 on: January 04, 2016, 09:03:07 AM »
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Did some research and it are ID1300 injectors. TVUB is a bit weird in damos. 4 different damos all don't have voltage in axis, only weird digits.. I think it should be factor 0,0704 than axis is 6v, 8v, 10v, 12v, 16v. This is injector data: http://injectordynamics.com/injectors/id1300/Besides the diameter of the MAF. Maybe you are trying to set to much variables on the same time. I have a similar work to do this year but I will calibrate the MAF with fuel und OEM injectors first. After that the injectors - step by step... |
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dream3R
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« Reply #12 on: January 04, 2016, 09:41:56 PM »
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Besides the diameter of the MAF. Maybe you are trying to set to much variables on the same time.
I have a similar work to do this year but I will calibrate the MAF with fuel und OEM injectors first. After that the injectors - step by step...
axis doesn't rally matter to be honest, just try to reduce cpu time (interpolation). Very good approach, to many vars changed a once unless you're an uber pro is a huge mistake.. re tvub axis the factor is derived via cpu speed. |
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turbojohan
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« Reply #13 on: January 05, 2016, 06:48:18 AM »
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I didn't build the car, the put it here and i'll try to make something out of it :-)
ME7 is an awfull lot different from EDC's what i'm used to.
And yes there where way to much variables in this car.
So i have a stock maf now, so i know that's ok.
Try to get injectors working correct first.
Runs quite good now but won't start, TVUB looks too much off at lower voltages.
I'll correct that and see how it goes.
Thanks for the help and will post my next problem i will have with this car..
Should make 1000 hp so will be a lot of work left..
And has 7 speed DSG from RS3 with stronger clutches...
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aef
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« Reply #14 on: January 07, 2016, 12:11:47 AM »
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Strange story here. Who builds a car with this amount of money and the "tuner" is a dieselgeek without basic me7 understanding.
its not against you but there are better ways to learn me7 plus this r32 was never a turbocar.
where are you located?
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