NefMoto > Technical > Tuning > Volumetric Efficiency tables
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Author Topic: Volumetric Efficiency tables  (Read 22562 times)
aef
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« Reply #15 on: October 12, 2015, 06:25:14 AM »
Quote from: prj on December 14, 2014, 04:49:54 AM
VE in ME7 is not used like it would be used in a standalone ECU.
The maps most related to VE are KFPBRK, KFPBRKNW, KFPRG, KFURL.

But technically you almost never need to change them. The most important part in ME7 is to have msdk_w and mshfm_w be as equal as possible, and make sure that ps_w is not much smaller than pvdk_w, otherwise you get into other sorts of trouble.

My 1.8t is displaced to 2L.
I changed KUMSRL and KISRM by calculating and i changed KFURL to make my ps_w follow my rl_w. What i dont unterstand is the Part in the FR were the msdk_w should follow mshfm_w.
Is KFPRG the map to change?
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« Reply #16 on: October 12, 2015, 08:36:33 AM »
I belive it is TB maps. WDKUGND, KFWDKMSN. KFMSNWDK
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aef
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« Reply #17 on: October 12, 2015, 10:53:36 AM »
http://nefariousmotorsports.com/forum/index.php?topic=5238.msg49915#msg49915

Hmm makes sense maybe.... Will try tomorrow.

MAF and Throttlebody is original S3. Just displacement changed. So maybe this is not the right map to change.  Huh
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« Reply #18 on: October 12, 2015, 12:31:37 PM »
Do please and post your results.
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dream3R
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« Reply #19 on: October 12, 2015, 02:12:33 PM »
I found my ps_w lined up nice with pvdk_w once I replaced the inlet manifold, so remember not all s/w Smiley
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How to work out values from an A2L Smiley

http://nefariousmotorsports.com/forum/index.php?topic=5525.msg52371#msg52371


Starting Rev's http://nefariousmotorsports.com/forum/index.php?topic=5397.msg51169#msg51169

noobs read this before asking http://nefariousmotorsports.com/forum/index.php?topic=9014.0title=


ORGORIGINAL 05 5120 creator for Volvo
ORIGINAL Datalogger (Freeware) Author
ORGINAL finder of the 'extra' torque' limits
I don't have ME7.01 A2L I just use ID
aef
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« Reply #20 on: October 13, 2015, 12:40:48 AM »
But my inlet is stock too
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dream3R
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« Reply #21 on: October 13, 2015, 12:42:15 AM »
Quote from: aef on October 13, 2015, 12:40:48 AM
But my inlet is stock too

Might be worth spraying carb cleaner around the gaskets etc.  Just a thought.
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How to work out values from an A2L Smiley

http://nefariousmotorsports.com/forum/index.php?topic=5525.msg52371#msg52371


Starting Rev's http://nefariousmotorsports.com/forum/index.php?topic=5397.msg51169#msg51169

noobs read this before asking http://nefariousmotorsports.com/forum/index.php?topic=9014.0title=


ORGORIGINAL 05 5120 creator for Volvo
ORIGINAL Datalogger (Freeware) Author
ORGINAL finder of the 'extra' torque' limits
I don't have ME7.01 A2L I just use ID
aef
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« Reply #22 on: October 13, 2015, 08:34:47 AM »
I tried to modify the last row of wdkmsn and msnwdk but this didnt change anything.
I changed WDKUGDN from 3000rpm up to the last row and this changed my massairflowatthrottleplate

was this the right map to go with, idk  Lips sealed
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« Reply #23 on: October 13, 2015, 08:58:53 AM »
It sure is Smiley  Great.
How did you expirience the difference Before and after besides the log ofcourse?
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aef
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« Reply #24 on: October 13, 2015, 10:03:21 AM »
nothing chanced, feels like the same before and after
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« Reply #25 on: October 13, 2015, 11:09:41 AM »
It should not either. If your Maf failed and you hade not calibrate it as you did. Car would run like shit is my guess.
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prj
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« Reply #26 on: October 14, 2015, 11:52:52 AM »
Not correct.
Look at the fast path flow equalization routines. fkmsdk and so on.

Not active in all softwares, but it is something that will catch you out really badly at some point if you do not do things right.

Also, throttle control is better with correct maps. So ECU knows when to go WOT.
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PM's will not be answered, so don't even try.
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« Reply #27 on: October 14, 2015, 10:19:53 PM »
Ok, thanx for explanation.
I will look into this.
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aef
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« Reply #28 on: October 24, 2015, 07:18:33 AM »
Quote from: prj on October 14, 2015, 11:52:52 AM
Not correct.
Look at the fast path flow equalization routines. fkmsdk and so on.

Not active in all softwares, but it is something that will catch you out really badly at some point if you do not do things right.

Also, throttle control is better with correct maps. So ECU knows when to go WOT.

Okay i changed WDKUGDN and it worked but you told me it is wrong. In another thread you wrote to change WDKUGDN.
http://nefariousmotorsports.com/forum/index.php?topic=4381.msg72257#msg72257

Now im confused even more.
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Jim_Coupe
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« Reply #29 on: October 30, 2015, 06:55:12 AM »
Mocke are you from the "stand alone" world and want to know where to tune VE? didnt quite understand.
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E85oholic
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