Data Logs! Post them here.

[GeeTee86]

thx for the reply mate.
As we have more or less the same environmental conditions here (except proper fuel), it would be most advantageous to get a tune from you I recon

[Dammod]

Originally Posted by GeeTee86

Needs some help here.
If you look at the attached file, is it possible to have neg fine correction (this is retard from knock right), and still have a 1 IAM?

@ steve99

full file:
ProECU-SubaruBRZ-EU BRZ Manual High FD (ZA1JA01G)-07-02-2015 16-28-10_review.csv

Overall the datalog looks ok, however, I find it extremely difficult to believe the developed map is well suited for our 95 pump fuel at low altitude / coastal conditions. The map will however be more well suited for higher altitude, but even so, not under all driving and ambient conditions. Lessons learnt from the development we have done, and what I have heard with my own ears via electronic detcans, its best the vehicle running this map be on higher octane / octane boosted fuel.

I few "constructive" observations to point out:

• Long-term fuel trims are seen during WOT, which possibly indicates that the MAF sensor scaling calibration is off and being carried over to OL from CL.
• There are signs of the ecu retarding timing low down and at WOT, which needs to be investigated.
• The AFR's the motor is seeing are too lean.
• Ignition timing is overadvanced.
• Fueling, Engine load, MAF g/s and voltage show fluctuation, which could be due to incorrect Injector Timing; Direct/Port Injection Split; AVCS overlap; and/or MAF Scaling.

Regards,
Marco

[GeeTee86]

Damian upload last nights log into datazap so we can all review it.
I believe it was on E50?

[DeliciousTuning]

Originally Posted by GeeTee86

Needs some help here.
If you look at the attached file, is it possible to have neg fine correction (this is retard from knock right), and still have a 1 IAM?

@ steve99

full file:
ProECU-SubaruBRZ-EU BRZ Manual High FD (ZA1JA01G)-07-02-2015 16-28-10_review.csv

Well from what we are seeing, this looks very good. I would suggest that you investigate what a stock tune does on a stock vehicle in South Africa; you will find this is vastly improved over the factory tune.

The timing values are what we expect and what you should see. Having a Fine - Ignition Correction of -1 is to be expected within the powerband, especially down low. Stock cars exhibit much harsher corrections in this area. Even renowned tuning facilities such as Cobb Tuning state in their tuning guides a value of -2.1 or lower is to be expected out of a Subaru engine.

The AFR is also right in line with what we would expect for a NA car. In fact, you could even say it's a little on the rich side and you could safely see a little more power by leaning it out a bit more.

The AVCS and Direct Injection values we use have been extensively tested on a MAHA "manufacturer" spec dyno. Here is a video of the testing procedures we go through with our tunes.

[ame="https://www.youtube.com/watch?v=IYBeD3drCK8"]Delicious Stage 1 Endurance Dyno Testing - YouTube[/ame]

All this and we still have the most powerful remote tune in South Africa, with values that clearly display a much happier engine than what you get from the factory.

Feel free to contact us directly if you have any questions about your tune in the future, we're always more than happy to help out.

Cheers,
William Knose
Delicious Tuning

[GeeTee86]

Thx for the reply William. Funny how phoenix says its not good

[Phoenix*]

@DeliciousTuning

Your views have some validity, but also holds inaccurate statements inline with our pump fuel properties. Do yourself a favour and fly to South Africa and listen to the motor with electronic detcans. The knock frequency of our pump fuel differs and is not always detected by the ecus knock calibration settings, unless recalibrated.
The motor therefore knocks without ignition retard correction occuring.

Becareful to not misinform your South African customers based on your USA developments, in turn creating a false analogy.

@GeeTee86

My views on the datalog are honest and true.
I have been tuning Subarus for 10+ years, and I understand the temperament of these motors and our pump fuel exceptionally well.

I replied for your best interests...not mine.

Regards,
Marco

[DeliciousTuning]

Originally Posted by Phoenix*

@DeliciousTuning

Your views have some validity, but also holds inaccurate statements inline with our pump fuel properties. Do yourself a favour and fly to South Africa and listen to the motor with electronic detcans. The knock frequency of our pump fuel differs and is not always detected by the ecus knock calibration settings, unless recalibrated.
The motor therefore knocks without ignition retard correction occuring.

Becareful to not misinform your South African customers based on your USA developments, in turn creating a false analogy.

@GeeTee86

My views on the datalog are honest and true.
I have been tuning Subarus for 10+ years, and I understand the temperament of these motors and our pump fuel exceptionally well.

I replied for your best interests...not mine.

Regards,
Marco

Well I hate to say it but time to freshen up your knowledge of knock sensors and how they work. Might be worth looking into a Motec SKM course. This course is really informative about how knock detection systems work on vehicle and how the internal knock noise frequencies are created from the engine harmonics, not fuel properties.

[ame="https://www.youtube.com/watch?v=Hpc27LV8CPc"]M1 ECU Training: Setting up knock control - YouTube[/ame]

Quick video on how to setup knock control with MoTeC.

So no matter what blend of fuel you put in your vehicle, knock is knock and it is interpreted the same way in every BRZ/FRS/86 around the world.

I have no idea why you are using det cans, they were around before knock sensors even existed. Knock sensors are far more sophisticated, and can detect knock at a far smaller level than your ears with det cans could ever hope of hearing.

By the way we have been at this for 15+ years.

Cheers,
William Knose
Delicious Tuning

[Phoenix*]

@ William

I have "extensive" MoTeC training and have been tuning MoTeC platforms for years. Are you perhaps a "qualified" Mechanical Engineer with a Masters specialization in Internal Combustion engines..?

For a tuner like yourself that has supposedly been tuning Subarus for 15+ years, I am dumb founded by you saying that knock cannot occur without OEM ecu detection.
Please quote this statement on NASIOC and see how it will be challenged and ripped to pieces!

Your reply has once again confirmed your true lack of knowledge in understanding conditions within the combustion chamber. Unfortunately you are not speaking to an average Joe here, but I see your angle now...you are using your self-proclaimed reputation to come across to novice masses as if you have all the technical answers.

Please go educate yourself on laminar and turbulent fuel flame propagation rates, auto-ignition properties, detonation frequencies, and especially deflagration to detonation transitions (DDT).

Regards.

[GeeTee86]

Ohhh dictionary came out now. Where's my popcorn

[itsjustdavep]

is the knock just a bad tank of E85?
http://datazap.me/u/itsjustdavep/215...a=0-1-2-3-4-13

I've been running the same 2.063 E85+EL tune for a month now and that's never popped up

[itsjustdavep]

Originally Posted by itsjustdavep

is the knock just a bad tank of E85?
http://datazap.me/u/itsjustdavep/215...a=0-1-2-3-4-13

I've been running the same 2.063 E85+EL tune for a month now and that's never popped up

guize, dis is bothering me

http://datazap.me/u/itsjustdavep/216...0&data=1-2-3-4

[Phantobe]

Originally Posted by itsjustdavep

guize, dis is bothering me

http://datazap.me/u/itsjustdavep/216...0&data=1-2-3-4

Whats your concern? If its your KC learned value take a look here...

http://www.ft86club.com/forums/showthread.php?t=71913

The only thing that looks a bit off is you're running very rich on your WOT pull 11.25.

Other than that you have pretty minimal knock.

[itsjustdavep]

Originally Posted by Phantobe

Whats your concern? If its your KC learned value take a look here...

http://www.ft86club.com/forums/showthread.php?t=71913

The only thing that looks a bit off is you're running very rich on your WOT pull 11.25.

Other than that you have pretty minimal knock.

It's rich because I'm all stock running a e85 tune. But thanks for that thread. I can sleep easy now

[JB86'd]

flashed the stage 2 uel 91 oct tune with my OFH earlier today, this is after about 40 miles of learning. I'm seeing some higher fuel trims on low rpm light throttle (~ +10-12%), under heavier acceleration I think it's looking okay. Hopefully the higher fuel trims go away after more learning. If I had an exhaust leak near the 02 sensor wouldn't fuel trims be off during heavy load as well?

How's it look?

http://datazap.me/u/joshbustos86/206...=1-4-7-9-12-14