Official OpenFlash Tablet FA20 Tuning Tech Discussion Thread

[Luckrider]

The accelerator pedal takes time to learn any time it loses power. Ideally you would push it a few times to WOT with the car in the on position but engine off. Over time you WOT will start to register higher and higher, but my understanding is, anything over like 94% (I can't remember the exact value) is WOT.

[Kodename47]

If you're worried, then just look at the throttle angle. FYI, that doesn't show as 100% either though and seems to taper down on OFT.

[Shiv@Openflash]

Originally Posted by Walla Walla

anyone able to understand if this log is good or bad?
i'm still trying to understand datalogging, any imput would be great

http://datazap.me/u/walla-walla/brz-...g=0&data=1-8-9

OFT stage 2, with 91 oct

It's a bit on the rich side and i see the ECU trying to pull out fuel (LTFT pegged at -3.9%). Since you don't have any intake mods, I'm guessing this may have something to do with the fuel formulation in Canada. Still perfectly within reason though so you can either leave it as is or lean it out slightly in the primary fuel map. Timing and throttle) look spot on. It's normal to see throttle peak at 95-100% and then taper off to 90%. This is the actual throttle blade angle. Not to be confused with accelerator pedal position (which is also log-able now since the last OFT update). Engine load does seem pretty high for an NA car though.

Shiv

[nelsmar]

Originally Posted by Walla Walla

i'll post again, since i think it just passed free, with so many topics in 1 thread

here it is
3rd gear pull

http://datazap.me/u/walla-walla/3rd-...g=0&data=1-8-9

UEL Open Flash Header is the only mod (only other thing I did was to remove the sound tube but i really don't think it change something..?)

note that I had the accel down on the floor the whole time.. it's weird that it is not shown as 100% (could not go higher than 96%..?)
@shiv@vishnu @nelsmar

Intake is completely stock? What was ambient temperature and elevation i am quite curious...
Also A01c?

Looks like there may be some FLKC (very minor) at the 6-7k range. AFR is "close" to target after trims have gone in but looks like its over shot and giving a false reading of load. Your actually reading load over the edge of the map. Tell me which rom you are on and I can send you something to test real quick. I am going to assume your fuel does not have ethanol in it correct? I can send you a rom back with MAF scale adjustment and LTFT turned off for two quick pulls and then you can turn them back on. Once the maf is adjusted the ignition might have to be pulled a hair in that 6k range if it is FLKC as it looks like it was pulling just roughly -.7 degree from what im guessing it should be. You can see in the knock correction learn value plot that it "dips" down and recovers yet the actual ignition advance table is fairly smooth.

[Walla Walla]

Originally Posted by shiv@vishnu

It's a bit on the rich side and i see the ECU trying to pull out fuel (LTFT pegged at -3.9%). Since you don't have any intake mods, I'm guessing this may have something to do with the fuel formulation in Canada. Still perfectly within reason though so you can either leave it as is or lean it out slightly in the primary fuel map. Timing and throttle) look spot on. It's normal to see throttle peak at 95-100% and then taper off to 90%. This is the actual throttle blade angle. Not to be confused with accelerator pedal position (which is also log-able now since the last OFT update). Engine load does seem pretty high for an NA car though.

Shiv

thanks for the quick feedback! since I don't know shit about tuning, I really wanted to be sure my engine was safe!

i kind of understood it looked rich, but I wouldn't be comfortable to play with map myself!

Originally Posted by nelsmar

Intake is completely stock? What was ambient temperature and elevation i am quite curious...
Also A01c?

Looks like there may be some FLKC (very minor) at the 6-7k range. AFR is "close" to target after trims have gone in but looks like its over shot and giving a false reading of load. Your actually reading load over the edge of the map. Tell me which rom you are on and I can send you something to test real quick. I am going to assume your fuel does not have ethanol in it correct? I can send you a rom back with MAF scale adjustment and LTFT turned off for two quick pulls and then you can turn them back on. Once the maf is adjusted the ignition might have to be pulled a hair in that 6k range if it is FLKC as it looks like it was pulling just roughly -.7 degree from what im guessing it should be. You can see in the knock correction learn value plot that it "dips" down and recovers yet the actual ignition advance table is fairly smooth.

the gas is from Shell, so no ethanol (but they do say on the pump it contain azote...?)
temp was like around -2C to 2C. completely stock intake. elevation 322 feet in quebec city.

i dont really understand everything you explain, but if you want me to test something, it would be my pleasure!

i'm running on Stg2 UEL 900C.bin

[Kodename47]

@Walla Walla it might be worth using Romraider to look at the maps. Use the open ROMs as a chance to learn what the maps are doing. If you Google a lot of the info you can learn a lot. I've gone from knowing nothing to having learnt how to do a tune, having reference maps to see what changes have been made is a great benefit.

[frsqc]

walla walla, did you try 94 oct from petro???

[Shiv@Openflash]

Originally Posted by Walla Walla

thanks for the quick feedback! since I don't know shit about tuning, I really wanted to be sure my engine was safe!

i kind of understood it looked rich, but I wouldn't be comfortable to play with map myself!

The tune is completely safe. If you want to get custom tuned from this point out, we do offer e-tuning services. But in all honesty, you may only be looking at picking up 5-8whp by running a little bit leaner and by seeing how far we can push timing. It may or may not be worth it to you

Cheers,
Shiv

[Walla Walla]

Originally Posted by shiv@vishnu

The tune is completely safe. If you want to get custom tuned from this point out, we do offer e-tuning services. But in all honesty, you may only be looking at picking up 5-8whp by running a little bit leaner and by seeing how far we can push timing. It may or may not be worth it to you

Cheers,
Shiv

Thanks!
for now I will be ok, but I'm waiting to see what will get out of the third party review for the "Crawford Billet Power Blocks"

then, maybe I will be going for some e-tuning services!

Originally Posted by frsqc

walla walla, did you try 94 oct from petro???

no, I tried once, and with all the negative feedback I read about it, I decided to stick with shell

[Shiv@Openflash]

Originally Posted by Walla Walla

Thanks!
for now I will be ok, but I'm waiting to see what will get out of the third party review for the "Crawford Billet Power Blocks"

then, maybe I will be going for some e-tuning services!




no, I tried once, and with all the negative feedback I read about it, I decided to stick with shell

I think sticking with Shell was a good choice

We will be testing the Crawford BPB soon as well!

[Luckrider]

Originally Posted by shiv@vishnu

I think sticking with Shell was a good choice

We will be testing the Crawford BPB soon as well!

Does this mean if it works out well, we could see a polymer based unit that is way cheaper and works well for NA or Phantomcharger cars?

[Sniper2606]

Just for research sake, heres my 3rd gear pull on sc kit.

http://datazap.me/u/sniper2606/3rd-g...l?log=0&data=1

91 gas on 93 map
Vortech
UEL headers
Test pipe
Overpipe
Q300

[nelsmar]

Originally Posted by Sniper2606

Just for research sake, heres my 3rd gear pull on sc kit.

http://datazap.me/u/sniper2606/3rd-g...l?log=0&data=1

91 gas on 93 map
Vortech
UEL headers
Test pipe
Overpipe
Q300

Pretty rich, and a bit of knock up top starting @ 6k Your ecu is pulling a good 3 degree's timing. I would offer to modify that earlier posted ROM but thats probably something best left to shiv. You should be seeing a flat 3.16* timing under all higher load conditions.

[nelsmar]

Originally Posted by nelsmar

Pretty rich, and a bit of knock up top starting @ 6k Your ecu is pulling a good 3 degree's timing. I would offer to modify that earlier posted ROM but thats probably something best left to shiv. You should be seeing a flat 3.16* timing under all higher load conditions.

Mind you that is if the rom posted earlier is what you are running.