NefMoto > Technical > Tuning > Documents & Helpers & How To's > MED9.1 Tuning/FAQ/Help Thread
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Author Topic: MED9.1 Tuning/FAQ/Help Thread  (Read 325968 times)
majorahole
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« Reply #540 on: January 19, 2015, 10:11:44 PM »
Quote from: BDIX727 on January 19, 2015, 09:56:52 PM
@majorahole send the file in a PM and I'll let you know what it is.
I have it labeled in my file, I just don't have it open in front of me to see which is which. thanks tho!
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BDIX727
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« Reply #541 on: January 19, 2015, 11:01:14 PM »
I didn't mean show you where a map was. I'd look at the file, find why it's not doing what you want it to do and tell you what needs to be changed as a nice gesture. It'd take 5 minutes. No big deal if you don't want to. I'm not doing it because I need IP, I have my own stuff.
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flaattire
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« Reply #542 on: January 20, 2015, 12:52:48 AM »
Here's mine:
« Last Edit: January 31, 2015, 05:07:58 AM by flaattire » Logged
smelly240
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« Reply #543 on: January 20, 2015, 01:52:29 AM »
Its about 4AM here so if I am of no help I apologize...  The dog kicked me outta bed and cant find anything on tv.  At a glance...

KFLDHBN is set to 22psi up until 3000rpm and then to only do 1.1bar 5000rpm and up and only .6bar at 6000

Also - your LDRXN is not smooth and doesnt match what you've done with KFLDHBN.  Where LDRXN is increased (4000rpm and up) - KFLDHBN is limiting boost to about 18psi and dropping immediately. 

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BDIX727
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« Reply #544 on: January 20, 2015, 01:58:25 AM »
It looks like you defined the axises for KFLDHBN backwards. This is probably the source of the issues.

I can't really look at it in more in-depth until tomorrow. You can remove it from the website if you'd like to, I have it.
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Basano
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« Reply #545 on: January 20, 2015, 03:15:38 AM »
Are you experiencing this?



Eventually, after much hair-pulling (and help) I managed to get this



To cut a long story short, what worked for me was twofold (over and above the advice on KFLDHBN and all the rest)

1)   Fuelling. If I went over 10ms I got intervention. So indirectly, if BTS demands more fuel, it may tip you over 10ms and then the limitation starts. I can list what I changed map-wise to bump up the rail pressure if it'll help?
2)   KFMDBGRK (Torque limiting clutch for protection)

This should make it a bit clearer
« Last Edit: January 20, 2015, 03:26:53 AM by Basano » Logged
flaattire
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« Reply #546 on: January 20, 2015, 03:27:06 AM »
Very interesting! Will report back after I take a much closer look at KFLDHBN and its axis!

Basano: I haven't yet gotten to logging those variables like you have. I do know my injection time is staying below 10ms so far.


Edit: Changed the axes, smoothed out LDRXN, had to go drive the car immediately after flashing. Once the motor warmed up and we boosted the difference was immediately seen. Thanks to BDIX and smelly240 I saw 20PSI from 4-5K. Boost still tapers to around 10 at redline...maybe due to timing pull or part of KFLDHBN remaining squirrely?
« Last Edit: January 20, 2015, 04:27:00 AM by flaattire » Logged
smelly240
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« Reply #547 on: January 20, 2015, 05:30:35 AM »
does req boost go down?  And did you make ldrxn look more like this?

Something tells me your kfldhbn adress is wrong - I think you might be missing the last column - since it was set to 9.5psig and boost is falling.
« Last Edit: January 20, 2015, 05:34:59 AM by smelly240 » Logged
majorahole
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« Reply #548 on: January 20, 2015, 01:11:40 PM »
Quote from: BDIX727 on January 19, 2015, 11:01:14 PM
I didn't mean show you where a map was. I'd look at the file, find why it's not doing what you want it to do and tell you what needs to be changed as a nice gesture. It'd take 5 minutes. No big deal if you don't want to. I'm not doing it because I need IP, I have my own stuff.
sent you a pm with a link
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majorahole
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« Reply #549 on: January 20, 2015, 01:15:54 PM »
Quote from: flaattire on January 20, 2015, 03:27:06 AM
Very interesting! Will report back after I take a much closer look at KFLDHBN and its axis!

Basano: I haven't yet gotten to logging those variables like you have. I do know my injection time is staying below 10ms so far.


Edit: Changed the axes, smoothed out LDRXN, had to go drive the car immediately after flashing. Once the motor warmed up and we boosted the difference was immediately seen. Thanks to BDIX and smelly240 I saw 20PSI from 4-5K. Boost still tapers to around 10 at redline...maybe due to timing pull or part of KFLDHBN remaining squirrely?

just looking, and my axis' were swapped too! couldnt easily tell, compared it to defined bin, and went to try and past into it, and it kept going where i didnt want it. then i figured it out! i feel retarded!!
gonna flash again when i get my car back from body shop, ill post my results also
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flaattire
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« Reply #550 on: January 20, 2015, 02:30:04 PM »
Well, my KFLDHBN was defined from your map pack Grin

I'll take a closer look after I finish waking up. We will have 1+bar at redline!
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majorahole
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« Reply #551 on: January 20, 2015, 03:07:48 PM »
Quote from: flaattire on January 20, 2015, 02:30:04 PM
Well, my KFLDHBN was defined from your map pack Grin

I'll take a closer look after I finish waking up. We will have 1+bar at redline!
whoops lol, that explains it! im gonna have to update that! sorry man!!
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Basano
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« Reply #552 on: January 21, 2015, 02:31:58 AM »
Quote from: Basano on January 20, 2015, 03:15:38 AM
I can list what I changed map-wise to bump up the rail pressure if it'll help?

Bearing in mind I have completely stock hardware, these are the HPFP maps I changed (rightly or wrongly):

KLPROV    0x1D20D2   (stock 12.0, mine 13.0)
PGBDVHDO    0x1D8D40   (stock 11.8, mine 12.8 )
PRNL1       0x1D8EDC   (stock 12.0, mine 13.0)
KFPRSOLHKS   0x1D8FE4   (bottom two rows, middle to end, stock 11.0, mine 12.0 – 12.5)
KFPRSOLHMM   0x1D9064   (bottom two rows, middle to end, stock 11.0, mine 12.0 – 12.5)
KFPRSOLHOM   0x1D90E4   (bottom two rows, middle to end, stock 11.0, mine 12.0 – 12.5)
KFPRSOLKH   0x1D9164   (bottom two rows, middle to end, stock 11.0, mine 12.0 – 12.5)
KFPRSOLSCH   0x1D9264   (bottom two rows, middle to end, stock 11.0, mine 12.0 – 12.5)
KLLFPRSG   0x1D92F2   (axis and last entry, stock 11.0/0.45, mine 12.5/0.495)
KLPRMAX   0x1D9305   (last two entries, stock 11.0, mine 12.0 – 12.5)
KLTFPRSO   0x1D932A   (rightmost entry, stock 6553, mine 9829)
VHDP      0x1D935C   (stock 251.0, mine 377.0)

The biggest headache I had was inconsistent specified rail pressure. I was aiming for 12.5, but sometimes I’d only get 11.0 or 9.0. Actual rail pressure would faithfully track this and I’d end up with injection time maxing out since it tried to compensate for the lower pressure with longer opening times. Then I’d get intervention due to the injection time… It was really frustrating since I couldn’t pin it down.

I tried lots of things but eventually the cure for me was VHDP. Originally I left this alone since my hardware is totally stock and rightly or wrongly I assumed this should match the volume of the pump. Eventually after a lot of logging and drawing lots of pictures, I discovered VHDP is acting like a rate limiter (by design or due to my other changes I don't know). I increased it and never looked back. Specified rail pressure on my stock hardware is now always 12.5. Actual rail pressure is another story! I really need a hardware upgrade though since I have that midrange dip. Smiley

Some good resources here on the whole subject:

http://nefariousmotorsports.com/forum/index.php?topic=4996.0title=
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smelly240
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« Reply #553 on: January 21, 2015, 06:13:22 AM »
i think vhdp should be closer to 300.  It works for me anyways.  Are you guys editing RQUAHDPK?
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Beaviz
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« Reply #554 on: January 21, 2015, 07:16:47 AM »
Quote from: smelly240 on January 21, 2015, 06:13:22 AM
i think vhdp should be closer to 300.  It works for me anyways.  Are you guys editing RQUAHDPK?

When using a larger aftermarket pump yes.
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