OpenFlash Tablet v1.55b: BIN files added!

[Grymm86]

took my first log today. i have about 150mi on a stage 1 tune. K&n drop-in and running on 93.

3rd gear pull. let me know if something is off please.

http://www.datazap.me/u/grymm86/3-24-14?log=0&data=1-9

[Shiv@Openflash]

Originally Posted by Grymm86

took my first log today. i have about 150mi on a stage 1 tune. K&n drop-in and running on 93.

3rd gear pull. let me know if something is off please.

http://www.datazap.me/u/grymm86/3-24-14?log=0&data=1-9

Looks really good. Nothing much more to say

[Grymm86]

Originally Posted by shiv@vishnu

Looks really good. Nothing much more to say

all i wanted to hear! feels great! cant wait to start her on a E85 diet!

[Luckrider]

Originally Posted by Grymm86

all i wanted to hear! feels great! cant wait to start her on a E85 diet!

I hope you have a steady supply because once you start, it is an addicting car food. The twins love sugar/alcohol as much as we do.

[uncivilised]

if i flash to e85 stage 2 EL and still use a stock header, then later i add my 4-1 catless EL header (im waiting for them to be ceramic coated), will the tune adjust automatically to the header or will i need to reflash?

[Luckrider]

Originally Posted by uncivilised

if i flash to e85 stage 2 EL and still use a stock header, then later i add my 4-1 catless EL header (im waiting for them to be ceramic coated), will the tune adjust automatically to the header or will i need to reflash?

It would adjust over time, but you would be best to reflash I would think.

[Kodename47]

@Eric1855 the throttle will always show that.

[steve99]

Originally Posted by Boofneenee

So with the help of Neslmar and about 5 hours of study (didnt sleep a wink) I have come to a conclusion that the Stg 2 EL flash is safer for my car than the Stg 1 I have been using. I am sporting the nameless OP/DP (1 piece with high flow cat) and axleback and this must have been leaning out my car.

With the stg 1 and this mod the car was running on the lean side. LT fuel trims were greater as well

http://www.datazap.me/u/boofneenee/b...631&mark=11587

and here is stg 2
http://www.datazap.me/u/boofneenee/s...2156&mark=1826

I am still trying to understand KC learned and ignition advance. Not sure how the ignition advance compares between the 2 tunes. Not sure I understand it just yet. If so can someone tell me or give me an example of what an ideal timing should look like? When tuners say the car is pulling timing would I expect to see the ignition advance value start to drop as the rpms go higher? thats an observation I noticed when comparing the two tunes. Also, in the stg 2 I noticed that the ignition advance started to go down at 6k while stg 1 it started to go down around 5.6k

In any event,, very very happy man over here. My car appears to run stg 2 with stock headers and their is considerable improvement in performance.

ooh and this is with 93 pumps gas.

Hi,

I am no expert but if you have a look at this log

http://datazap.me/u/steve99/98-knock...zoom=1017-1326

It's got a few more timing parameters (Tactrix log G ROM) so its a bit easier to get your head arround total_riming, base_timing, KCA (KC learned) FLKC.

I do have an OFT as well

KCA = (values in "Knock Advance Max A table" * IAM ) - FLKC

Total_Timing = Base_timing + KCA

Unfortunatly no FBKC in that one and no IAM drop. FBCK is what will cause your IAM to drop if its severe enough and often enough. Note sure of the exact parameters but appears. Something like events over -1 and say 5 in a minute or so , just guessing here. Conversly if no FBCK knock events are detected over a period of time (seems to be a longer period) your IAM will start to rise again towards 1.

FBKC used to alter IAM (coarse correction) does not retard timing instantly

FLCK retards the riming instantly be decrementing the KCA value at that point instantly.

If your IAM drops below 1 then it decreases the timing added by KCA, effectivly retarding timing over entire rpm/load range.

KCA = ((Values in Knock Control max A Table) * IAM) -FLKC


IAM= Innition advance multiplier (coarse correction)
FBCK= Feed back knock control (coarse correction)
FLCK = Fine learning knock control
KCA = Knock control Advance

If you have an OFT it does not monitor FLKC directly you have to derive it from KC Learned (KCA) value. Which means looking for a drop in the KC Learned value when compared to the "Knock correction max A table" that was not due to IAM . you can usually pick it as a sharp chunk out of the KC learned value as oposed to a failry smooth curve.


Theire is more to it that what is shown here, this is just the stuff I think I understand but no guarantees

[AL008]

Originally Posted by shiv@vishnu

Looks really good. Nothing much more to say

I am really new to this but I did read somewhere that the ST Fuel Trim and LT fuel trim - Difference should be less than 10. Also the positive and negative differences of the ST/LT Fuel trims should approach 0.

He is getting the following:

1772RPM:
- ST Fuel trim value of 14.84
- LT Fuel Trim value of -2.34

1615RPM:
- ST Fuel trim value of 16.41
- LT Fuel Trim value of -3.12

The rest looks pretty good.

At such a low RPM range can this generally be negated? Are we only to be looking at WOT conditions above a certain RPM?

[makinen]

Hello,

I've tested stage 1 EL rom in the HPDE event at Korea International Circuit. It worked great! During weekend, no problem at all.

With the combination of HKS EL header, Raceseng S2 pulley kit, DSS Al shaft, Exedy light-weight flywheel, and 4.56 FD, it is awesome to drive. Top speed gain before Turn 1 is about 6 to 8 kph.

Thanks for a good product and the support to the A01E rom.

[Lemar58]

Man all this stuff is so complicated, Im running the stage 1 tune because i haven't received headers yet but I have a perrin intake as well as j2 exhaust. The tune feels a lot better. Just wondering how you all educate yourselves on this stuff lol. Looks so complex. Don't know if i should be running another tune or just sticking with the one i have. Also, I didnt update the firmware when I flashed the stage 1, should I reflash?

[gonzo]

Originally Posted by AL008

I am really new to this but I did read somewhere that the ST Fuel Trim and LT fuel trim - Difference should be less than 10. Also the positive and negative differences of the ST/LT Fuel trims should approach 0.

He is getting the following:

1772RPM:
- ST Fuel trim value of 14.84
- LT Fuel Trim value of -2.34

1615RPM:
- ST Fuel trim value of 16.41
- LT Fuel Trim value of -3.12

The rest looks pretty good.

At such a low RPM range can this generally be negated? Are we only to be looking at WOT conditions above a certain RPM?

People have been saying that anything +-5% LTFT at WOT is okay. As far as STFT and LTFT at partial throttle... /shrug

[l0aded]

Originally Posted by shiv@vishnu

Looks really good. Nothing much more to say

Hey Shiv can you check my log as well (running injen and stg1 on 91):
http://www.datazap.me/u/l0aded/run2?log=0&data=1-9

What are you looking for in these logs? Is there a range the AFR is supposed to be in? Looks similar to grymm86 so I assume it's ok.

[Kodename47]

Originally Posted by gonzo

People have been saying that anything +-5% LTFT at WOT is okay. As far as STFT and LTFT at partial throttle... /shrug

+-5% is fine so long as its not making you run excessively rich or lean. There will always be STFT occurring during throttle changes, and can vary without it being a problem.

The best way to analyze trim data is to plot them vs RPM and/or MAFv and look for trends, once you do that you're one step towards scaling the MAF.