Official OpenFlash Tablet FA20 Tuning Tech Discussion Thread

[Luckrider]

Originally Posted by cjsporl1996

opinions

vortech log

https://drive.google.com/file/d/0By3...it?usp=sharing

Post it up to datazap where it will be easier to view.

[SpatulaCS]

My OFT came today and flashed the 1.55 stage 2 UEL tune. The car is a whole different animal. It pulls much stronger and smoother. This is how the car should have come from the factory! My first WOT pull to redline left me giggling like a little girl. There's a small dead spot at initial pedal movement but I'm assuming the ecu will eventually learn and correct that.

A big thanks to @shiv@vishnu for producing a great product!

[2point0]

Originally Posted by SpatulaCS

There's a small dead spot at initial pedal movement but I'm assuming the ecu will eventually learn and correct that.

I had this as well but it didn't change. I have been back to stock for a while trying to see if a CEL will come back, but I was on E85 for around 1000 miles and had the Stage 1 map loaded for a week or so prior to that (easily a few hundred miles for me). I thought I was imagining things, but when a friend drove my car, he commented on the pedal doing just this.

[steve99]

Originally Posted by SpatulaCS

My OFT came today and flashed the 1.55 stage 2 UEL tune. The car is a whole different animal. It pulls much stronger and smoother. This is how the car should have come from the factory! My first WOT pull to redline left me giggling like a little girl. There's a small dead spot at initial pedal movement but I'm assuming the ecu will eventually learn and correct that.

A big thanks to @shiv@vishnu for producing a great product!

This is normal, ECU learning zero throttle settings

after flash if you let it idle for a couple of minutes speeds process.

[SpatulaCS]

Originally Posted by steve99

This is normal, ECU learning zero throttle settings

after flash if you let it idle for a couple of minutes speeds process.

After I flashed, I turned the key to ON and moved the pedal through it's full travel ten times. I then started the car and let it idle for five minutes. I only have about 50 miles on the tune though, so I expect it will get better.

[Captain Insano]

Curious... are we supposed to be switching to 1.56b now? I saw it on the OFT site and didn't see 1.55b anymore.

[Shiv@Openflash]

Originally Posted by Captain Insano

Curious... are we supposed to be switching to 1.56b now? I saw it on the OFT site and didn't see 1.55b anymore.

Take a peek at the release notes/read me file. It will describe changes between different versions. IIRC, the difference between 1.55 and 1.56 is just added ROM ID support for non-USDM OFT users. Mapping is unchanged.

[Captain Insano]

Cool I will keep running 1.55 then.
Thanks!!

[Lytheum]

anyone car to take a look at my log? looks a little lean through the first half of the rev range.

http://www.datazap.me/u/lytheum/kn-d...g=0&data=1-2-9

only mods are k&n drop in and silicone intake hose.

3rd gear pull from about 2500rpm to redline. v1.55 map

[Kodename47]

Originally Posted by Lytheum

anyone car to take a look at my log? looks a little lean through the first half of the rev range.

http://www.datazap.me/u/lytheum/kn-d...g=0&data=1-2-9

only mods are k&n drop in and silicone intake hose.

3rd gear pull from about 2500rpm to redline. v1.55 map

I think that looks fine. Personally I think under 12 is a little rich for N/A, although I would taper it to run richer at the top end. Don't forget that the OFT is a one-fits-all type map, like the OEM one but better, so Shiv is always going to play things safe.

[Tbor]

Just a quick question,

Last night I flashed my car to Stage1 and was testing it out, I noticed that my engine sounded a little raspier when accelerating at certain points. or it could be something else rattling. Anyway, is this normal since we are pushing the engine a little more?

[Luckrider]

3800-4000 RPM exhaust resonance due to aggressive exhaust timing to eliminate the dip. It goes away with the stage 2 UEL tune because the timing changes aren't needed to eliminate the power with an UnEqual Length header.

[celica73]

Are there any changes to engine braking in the OFT maps? Somewhere I read that the stock ECU (sorry, I can't seem to find the post anymore) leaves a lot of throttle opening when lifting off, while that it great for coasting/gas mileage, it sucks for getting the car to set the nose and actually turn-in in a motorsport setting.

Can anyone confirm this behavior?

[Tbor]

Originally Posted by Luckrider

3800-4000 RPM exhaust resonance due to aggressive exhaust timing to eliminate the dip. It goes away with the stage 2 UEL tune because the timing changes aren't needed to eliminate the power with an UnEqual Length header.

That makes perfect sense! Thank you, guess ill just have to wait for my OFH to come before i switch to stage 2.

One last question, I am completely stock, but want to run an e85 map.

Even tho stage 2 is designed for catless aftermarket headers, can i still run the stage 2 EL e85 map?