Official OpenFlash Tablet FA20 Tuning Tech Discussion Thread

[ap5512]

^^ makes me feel much better. The only current mods on the car are Perrin drop-in air filter and Greddy axleback.

Not to mention the soon to be installed OFH.

I'll read up on how to capture logs and what not after everything is installed. Thanks for the help.

[mad_sb]

Originally Posted by GotBRZ1691

Well that was weird. I went to that exact page and the list ended with ESC tune files.

Thanks!

yeah, i ran into the same thing a few weeks ago. It seems there are a few revisions of the page that you may hit depending on what link you follow, or possibly multiple servers hosting the content (and one is out of sync). Also there are a few different "direct" links floating around that link to the wrong page.

I intended to notify Shiv of the bad links but I could not remember the click sequence that lead to the stale pages.

[Phantobe]

Running the latest stage 1 map, just got my OFT+OFH today!

Gonna install the OFH on Sunday but man, even just with the tune the care feels awesome. I can't imagine how its gonna feel if I decide to do a fill up on E85 OFH+OFT.

With just the 3-4k is noticeably smoother, and above 5k this car moves!

[j_Zer0]

Could you guys take a look at this log and share some feedback? It's two 3rd gear pulls. I'm running 6AT, OFT stg2 UEL 93. Only mods besides the tune are OFH and an axleback. The numbers at a glance are:

knock correction (as high as -1.41),
flkc (between 0.41 and -0.65) and
IAM (as low as 0.92).

I'd also be interested in hearing what you guys think about AFR or LTFTs. Thanks a lot.

Log at:
http://www.datazap.me/u/jzer0/3rd-ge...2-6-8-11-12-13

[steve99]

Originally Posted by j_Zer0

Could you guys take a look at this log and share some feedback? It's two 3rd gear pulls. I'm running 6AT, OFT stg2 UEL 93. Only mods besides the tune are OFH and an axleback. The numbers at a glance are:

knock correction (as high as -1.41),
flkc (between 0.41 and -0.65) and
IAM (as low as 0.92).

I'd also be interested in hearing what you guys think about AFR or LTFTs. Thanks a lot.

Log at:
http://www.datazap.me/u/jzer0/3rd-ge...2-6-8-11-12-13

afr ltft looks pretty normal for oft tune they run pretty rich top end.

with the knock , try some differnt brands of fuel , the 91 tune wont help you with the fbkc knock as it only has timing removed over 5000 rpm. or you could pull some timing from the rpm\ load points in the problem areas

[solidONE]

Who else here is getting their asses kicked by subpar 'winter blend' fuel? I've pulled a bout a degree of timing across the problem areas and increased tip in (transient) retard also by a degree from a tune that was previously running pretty knock free during summer last year. Still, has more knock events logged than before. I only blame this on the fuel because there's really nothing different, besides the fuel (which happens to be from the exact same shell gas station as well), on the car to attribute this to. Anybody?

[jxl00]

hate to ask this noob question, but there's a lot of information here and really hard to sort through.


I have stock everything on an AT and don't plan for any major upgrades.
for the 500 price tag, what does OFT give me besides the 5-10 extra HP.
is it significant and worth 500, or is my money better spent elsewhere?

[Target70]

Originally Posted by jxl00

hate to ask this noob question, but there's a lot of information here and really hard to sort through.


I have stock everything on an AT and don't plan for any major upgrades.
for the 500 price tag, what does OFT give me besides the 5-10 extra HP.
is it significant and worth 500, or is my money better spent elsewhere?

You have to state your goals before anyone can really help. You say you don't plan any major upgrades, but do you plan on any upgrades at all? Even minor intake/exhaust work will see higher gains with a tune. If you don't plan on any upgrades, you will probably not care about the data logging feature, so the only other benefit I can think of is that the OFT can also read and clear ECU Fault codes.

If you can explain your goals, plans or interests...

[steve99]

Originally Posted by jxl00

hate to ask this noob question, but there's a lot of information here and really hard to sort through.


I have stock everything on an AT and don't plan for any major upgrades.
for the 500 price tag, what does OFT give me besides the 5-10 extra HP.
is it significant and worth 500, or is my money better spent elsewhere?

as the other guy says you need to know what you goals or future plans are

have a read on the oft tips link below might explain a few things.

if you try to run catless headers without a tune it does not work to well, often get cel code and also limited power increase.


it not always about peak hp increase reduction or eliminating torque dip stronger mid midrande smoother running ect are also achievable with tune. and basic bolt on mods.

tune only on petrol about 10hp
tune with catless header about 20 hp
tune for e85 fuel on stock car about 20 hp
tune for e85 and catless header about 30 hp

most tunes weather from oft , ecutek,ect will achieve similar results. With a dedicated dynotune you will squeze out a few more hp but cost is higher.

oft is open no locks encrytion of your tune or ecu device is resellable
ecutek locks ecu and usually tune as well does have map switching and some other fancy features. just depends on what you want now and in the future.

[Kodename47]

Originally Posted by solidONE

Who else here is getting their asses kicked by subpar 'winter blend' fuel? I've pulled a bout a degree of timing across the problem areas and increased tip in (transient) retard also by a degree from a tune that was previously running pretty knock free during summer last year. Still, has more knock events logged than before. I only blame this on the fuel because there's really nothing different, besides the fuel (which happens to be from the exact same shell gas station as well), on the car to attribute this to. Anybody?

Colder air?

[jxl00]

Originally Posted by Target70

You have to state your goals before anyone can really help. You say you don't plan any major upgrades, but do you plan on any upgrades at all? Even minor intake/exhaust work will see higher gains with a tune. If you don't plan on any upgrades, you will probably not care about the data logging feature, so the only other benefit I can think of is that the OFT can also read and clear ECU Fault codes.

If you can explain your goals, plans or interests...

This upcoming year, I already spent enough money on the car (got wheels), so i'm gonna stick to just stock everything. i'm interested in stage 1 gains. I was wondering is the stage 1 tune noticeable and what actual benefits are there for AT. my real question is the OFT worth it just for the stage 1 tune.


next year I might get a header, because I see you can gain significant HP from that.

[Target70]

Originally Posted by jxl00

This upcoming year, I already spent enough money on the car (got wheels), so i'm gonna stick to just stock everything. i'm interested in stage 1 gains. I was wondering is the stage 1 tune noticeable and what actual benefits are there for AT. my real question is the OFT worth it just for the stage 1 tune.


next year I might get a header, because I see you can gain significant HP from that.

I have a manual so, the effects on an automatic may be different. But by feeling, the OFT stage 1 gave me a very noticeable difference to stock. As steve said, It not only improves peak power, the stage 1 tune changes the whole feel of the car. I have been running it for a while now but I remember being shocked at how much smoother the car felt when rolling into the power. It cuts the torque dip down I think close to half. The newest OFT tunes are based on the newest factory tunes, so depending on how old your car is, and the tune it has, the OFT tune may actually protect your engine from damage attributed to older factory tunes, and all without needing to go to/pay the dealership.
On top of that, with just the OFT you have access to swap over to E85 if you have it available in your location, without the need for any further mods. I only tried E85 after I went stage 2 so I can't tell you how stage 1 + E85 feels but starting from the 93octane stage 2 tune: E85 really wakes up the bottom end torque, eliminates the torque dip(with header), and the top end stays smooth and flat instead of falling off.
This car seems notoriously picky about mods. If you think you may change anything out, like a header in a year or so, you "might" actually loose power without a tune, mostly from some intake mods, but exhaust may/will throw check engine light.
From my understanding, just to get 1 dyno tune will cost you more than the OFT, and you will be stuck with that tune. If you want to run E85 or do any more mods you may have to pay for another tune all over again. Just for full disclosures sake: You will get more power and more options from a custom dyno tune over an off the shelf/(one size fits all tune), but you will also have to shop around for tuners who are qualified and experienced with our platform.

Also If you try The OFT out and don't like it you can always unmate it from your car and turn around and sell it for almost as much as you paid for it. For features, you have the the data logging and real time gauge display, the ECU code reader. You will get good customer service from the guys @openflash, and helpful folks like steve99 on the forums. To top it all off, It seems like they are always working on new innovations, updates and upgrades to the software, so you never really know what other benefits you will have access to in the future.

[solidONE]

Originally Posted by Kodename47

Colder air?

Hmmm... yes that one other variable that may be slightly different. Although even under similar IAT's (daytime in winter vs nighttime in the summer) there still appears more knock. I will have to keep an eye out for that and compare with old logs.

I would have thought colder air will be less knock prone from what I've seen in the past in logs. Though not quite as cold IATs as recent logs. (hot oil temps @ +240f and cold IATs @ below 68f)

[j_Zer0]

So this seems strange to me: I flashed to stg 2 E85 UEL tonight after following the process to switch over from petrol. After the flash finished I went for a drive to start letting the ECU sort out fuel trims. To my surprise, right off the bat my LTFT was in the single digits and half the time it was at zero. I was expecting to see values much higher than that. I was expecting to have to drive 20 - 30 miles before I saw the kind of numbers I did. Is this unusual? Has anyone else had the same experience or was your LTFT high for a while after flashing?

Log at: http://www.datazap.me/u/jzer0/first-...n?log=0&data=1