NefMoto

I am trying to tune my friends car, but don't have much success so far...
First hardware:
Fuel return sistem, with FPR set to 3.5 bar
380 cc injectors from S3
Turbular exhaust manifold
K03 with k04 compressor wheel
walbro fuel pump
3 inch MAF housing
Forge FMIC
FUEL 100 ron

First the software the problem is high EGT reading, and after gear change i always got ignition retard. If I shift from 3. to 4. it always retard ignition. If I acccelerate only in 4. gear it doesen't have knock retard
How can I solve that? I think it is not real knock

Hardware problem is high IAT, and I would say this setup schould give more power.  My car with k03s( in bade shape), stock IC, stock exhaust, Is a yust little slower than this friend car...
Is this high IAT maybe beacuse turbo efficiency? Outside air is around 0 °C, and IAT at 180 kmh is 40 °C

And don't bother with req boost,WGDC, and PID. I will take care of that
 

Please post a log.

sorry , I forget  :o

Given that your boost req/actual is so far off, tuning EGTs and fueling right now is pointless.

Get that fixed first.

How that is going to solve my problem with EGT?
I can fix that in a short time,that is a smalles problem. But when i make tune and drive to autoban to test car , why not change a parameters to try solve EGT immediately?

Could the FATMRML map is what i need to modify?

K03 turbo with a k03 turbine and k04 compressor?

How do You measure EGT ?

You know that measuring EGT accesibble via VCDS in this engine is pointless , especially after tune ...

K03 turbine is too small for your desired power,
exhaust gas pressure before turbine is getting way to high:
reducing gas exchange/VE,
heating up combustion chamber/ exhaust gas,
causing knock retard....

Yes as far I can see, I didn't open the turbo to check. My friend told me that
I think I didnt make myself clear.
Problem is high calculated EGT, so I have a retard ignition after gear change and BTS request a AFR below 10 . Look at graph below at maximum boost...
Same is from 3rd gear to 4th, as wheel (I  cool down the car and do another run) from 4 th to 5th. Every time if calculaced EGT is high i get retard ignition and enrichment

I want to lower down, "calculated EGT"

Now I lower down boost to normal (I don't want to force engine and turbo) 1.3-1.4 at peak and to 1.2 to high revs. But this EGT calculation is still make a trouble

Unless, if this is real knock in engine???

I apologize for my altitude. Will fix that then post new logs

After gear change knock voltage go to 50V  ??? :o

here is a 1.8T testrun, with K03 turbocharger, original equipped,
just to give an idea what the K03 turbine is capable of.
Remarkable the increase of exhaust gas pressure (p3) comparing to boost (p2S), even "untuned"

don't expect upturn, by reducing KFTATM

There is no connection beetwen calculated EGT and Timing ....

Lowering Calculated EGT will not fix Your timing retardation....

Fix BTS ....

Also search in FR for correlation beetwen Lamfa and Ignition .... motronic retard ignition for richer mixture - because flame speed... look for DZWOLA map... and check correlation beetwen lambda and timing retard... check what is happening on mixtures richer than 0.75
The more richer mixture the  timing is more aggressive so i t may cause knock.
As I said, FIX BTS for begining to prevent afr 10 ...

Leave calculated EGT alone, its not needed.

Also , YOu are requesting to much BOOST for this configuration ... it just cant stand this boost with this timing so its causing knock ...

Thank you very useful information  ;) :)





Okey I will fix BTS and see what will happen.

You think this is too much ignition for this boost, at 100 octane fuel?

I have 18 ignition on 98 octane with 230 g/s (300 hp on dyno). First tune daro/torque maps to avoid ignition oscilation. Emp must be stable to get power from this small turbo.

I already set DARO tourqe maps, but still have ignition oscilation
What EMP is?
And I looked at turbo exhaust side, it looks like it is K04

Emp is exhaust manifold pressure. Set daros to ffff and try disable torque monitoring for a test. Also set ignition without knocks.

Oh i forgot about DAROS, thank you now the ingition is nice and clean

This is my car, but I use same ECU on frineds car. Now I can set daros on his car and see results

One more thing to solve, can you help me with this knock after gear change?
How to retrieve desired ignition angle FAST after there is no knock?  Beacuse boostspike, after NLS, engine see knock and give me masive retard. I am okay with that, but I want to set ecu to retrieve back to desired ignition angle fast,after there is no more knock.
KRDWA?

This is my car, BEX with k03-029, 100 octane fuel

Maybe you need this:
http://nefariousmotorsports.com/forum/index.php?topic=12583.0title= (http://nefariousmotorsports.com/forum/index.php?topic=12583.0title=)

You need to tune the engine correctly, so you don't have 12 degrees retard jfc.

Also reading a little about how knock control works is a really good idea.
When cylinder knocks it gets MUCH hotter, and is much more prone to repeat knock. You can't phase it in almost any faster otherwise it will just retard again.

You have like completely the wrong approach to this.

1. Fix the overboost.
2. Fix the ignition table so if there is a little more load it runs the correct ignition for this.

I get retard while my clutch is still pressed and while tsrldyn is zero,  that is my problem and why I want to retrieve ignition back to desired. I don't think combustion chamber can heat up in a 0.5s that much so i can't retrieve ignition back to normal. Maybe I am wrong, but it doesen't have logic that parts in engine can heat so fast
(https://i.postimg.cc/FzDBvRrM/B6-update-1-20200123-210611.png) (https://postimg.cc/q66LXpCw)

I don't get any retard when I accelerate in single gear, but engine load is same when I accelerate, and when there is a boost spike and retard.
 So I can't set lower values of ignition angle in that region, without affect on engine power
 (https://i.postimg.cc/76C60CcV/load1.png) (https://postimg.cc/xJ2nSd9J)


I will try to fix overshoot

If you have knock only during flat foot shift it can be false knock.
And to get rid of it you need asm mods... Knock control must be disabled during FF.

If you switch gear without flatfoot shift do you get any KR?

That was my plan for next step, will take logs tonight without NLS

I have knock on gear change when i use only kflbts for fueling, when i use lamfa is no knock. Then i use lamfa with 0,82 value from 4500 rpm with kflbts for further fueling.

1) Remove NLS
2) Delete NLS script
3) Retune
4) Write a proper NLS routine from scratch.

I would gladly do that, if I only could run IDA with plugin. keil uVision is not enought...  But i don't need NLS for now, on this small turbo is will not make huge difference

I use lamfa too for fueling

BDW. without NLS there is no false knock and -12 retard, only real knock with -3 retard beacuse it is running on petrol fuel and tune is for E30

How do I convince people to stop using that fucking script

http://nefariousmotorsports.com/forum/index.php?topic=16559.15