OpenFlash Tablet v1.55b: BIN files added!

[s2d4]

Yeah, won't be doing that.

What jamesm was talking about was for flkc, what we are seeing is fbkc.

[Shiv@Openflash]

Originally Posted by 8686

I have more than 200 miles after the flash and still. Mine goes to low 11s near 7000 rpm.


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11.6-11.8:1 is desirable at high rpm WOT on gasoline. Looks like you are running slightly richer which may be a function of the fuel formulation you get in South Africa. Your timing is great and adv multiplier is stable at 1.0 so you can try leaning out your primary fuel table slightly (just 0.2 points) and retest. As long as you don't see any changes to ignition timing behavior, you are good to go. Or you can just leave it as is. Running richer than typical is perfectly safe and may only cost you a few hp up top.

Cheers,
shiv

[Shiv@Openflash]

Originally Posted by fenton

I have a question for the tuning GURU's out there.

I am getting a OFT next week, now on to the backstory.

I started out with Ecutek, ran Visconti's tune. Then i got the Phantom ESC. With Ecutek i flashed back to my stock ROM. Once the ROM was stock my local tuner flashed a boosted ESC tune using BRZedit.

I still have this BRZedit tune configured on my car.

What do i need to do to get the OFT safely installed on my car? Should i flash back to "stock" with Ecutek with the understanding that my BRZ edit tune will be gone? Will that even work with a BRZ edit tune installed?
@shiv@vishnu seems like he might be the best to answer this but if anyone else can offer advise that would be great also!

PS. - Dont really have access to the tuner with BRZedit and dont own the software myself.

Thanks for any help!

It would be ideal if you could have a BRZ edit tuner flash your car back to stock. But if not, it's no big deal. When you install your OFT, it will read and save the BRZedit ROM off your ECU and just assume that it is stock. No harm in that. You can then load the Phantom ESC OTS map in as usual.

[Luckrider]

Originally Posted by shiv@vishnu

11.6-11.8:1 is desirable at high rpm WOT on gasoline. Looks like you are running slightly richer which may be a function of the fuel formulation you get in South Africa. Your timing is great and adv multiplier is stable at 1.0 so you can try leaning out your primary fuel table slightly (just 0.2 points) and retest. As long as you don't see any changes to ignition timing behavior, you are good to go. Or you can just leave it as is. Running richer than typical is perfectly safe and may only cost you a few hp up top.

Cheers,
shiv

@shiv@vishnu,

What would you consider a good target for e85? I have noticed fantastic timing but feel it could probably go leaner, especially since everything some of the FI guys have been saying about e85 is to not go too rich. I'm getting >30° of timing advance in 3rd above 5k RPM.

Here is a 1st - 3rd gear from my latest log.

[Shiv@Openflash]

Originally Posted by Luckrider

@shiv@vishnu,

What would you consider a good target for e85? I have noticed fantastic timing but feel it could probably go leaner, especially since everything some of the FI guys have been saying about e85 is to not go too rich. I'm getting >30° of timing advance in 3rd above 5k RPM.

Here is a 1st - 3rd gear from my latest log.

For E85, I like to see high 11s at high RPM. You are already seeing 11.8:1 up to 7200rpm so i wouldn't consider leaning it out too much. I definitely wouldn't go leaner than 12:1 as you will start to loose power in the 5600-6500rpm range where the engine is very fuel hungry. Our OTS maps are definitely calibrated to be on the safe side of things. But they really aren't that far from max power.

[8686]

Originally Posted by shiv@vishnu

11.6-11.8:1 is desirable at high rpm WOT on gasoline. Looks like you are running slightly richer which may be a function of the fuel formulation you get in South Africa. Your timing is great and adv multiplier is stable at 1.0 so you can try leaning out your primary fuel table slightly (just 0.2 points) and retest. As long as you don't see any changes to ignition timing behavior, you are good to go. Or you can just leave it as is. Running richer than typical is perfectly safe and may only cost you a few hp up top.

Cheers,
shiv

Originally Posted by wparsons

Before changing anything, pull another log with the AFR Commanded as a parameter as well as STFT and LTFT.

If the AFR read and AFR commanded are very close, and the trims are very close to zero then the tune is running as designed. If you feel like it shouldn't be so rich, then you'll need to take some fuel out of the appropriate table(s).

If the AFR read and AFR commanded aren't close, or they're close but the trims are bigger (> ~3%) then you need to re-scale the MAF table.

It's possible you'll want to change both things, but get the MAF table correct before doing anything else. With a properly scaled MAF both AFR's should be very close, and the trims should be very small (or zero). Once you have that you have a cleaner starting point for making further changes.

Thank you all for the comments. Will do another log soon with AFR comanded, STFT, and LTFT.
Unfortunately I don't know how to modify maps. At least I will know what is needed to be done.

[AdrianG]

I see my AFR reading quite rich at WOT as well, reading as low as the sensor is capable of. I know at the edge of the sensor's range the information is probably inaccurate and I've also heard that the stock sensor is not terribly accurate so I see the richness as a bit of an insurance policy.

I'm really interested in seeing some wideband o2 sensor compatibility come to the OFT. As it is I could get an Innovate LC-2 and put it in the secondary o2 position and log it directly with Tactrix, but ideally I'd like the LC-2 to feed the primary o2 information for the ECU. I thought it would just be a matter of updating the sensor scaling in the ROM but what I see is measured in mAh and the Innovate is a 0-5v output.

Granted I haven't looked into it too far. I'd be most satisfied if Vishnu started offering an "Openflash Wideband" option with the sensor, controller, and a harness to connect it to the primary o2 (and provide an extension for OFH users to put the wideband in the secondary bung).

[fenton]

Originally Posted by shiv@vishnu

It would be ideal if you could have a BRZ edit tuner flash your car back to stock. But if not, it's no big deal. When you install your OFT, it will read and save the BRZedit ROM off your ECU and just assume that it is stock. No harm in that. You can then load the Phantom ESC OTS map in as usual.

Can i flash my stock map via Ecutek? I have the stock ROM in the Ecutek format.

I would like the OFT to have the true stock ROM incase i do indeed have to go back to stock for a dealer visit or something like that.

Thanks,

[8686]

Originally Posted by AdrianG

I see my AFR reading quite rich at WOT as well, reading as low as the sensor is capable of. I know at the edge of the sensor's range the information is probably inaccurate and I've also heard that the stock sensor is not terribly accurate so I see the richness as a bit of an insurance policy.

I'm really interested in seeing some wideband o2 sensor compatibility come to the OFT. As it is I could get an Innovate LC-2 and put it in the secondary o2 position and log it directly with Tactrix, but ideally I'd like the LC-2 to feed the primary o2 information for the ECU. I thought it would just be a matter of updating the sensor scaling in the ROM but what I see is measured in mAh and the Innovate is a 0-5v output.

Granted I haven't looked into it too far. I'd be most satisfied if Vishnu started offering an "Openflash Wideband" option with the sensor, controller, and a harness to connect it to the primary o2 (and provide an extension for OFH users to put the wideband in the secondary bung).

Actually I have a wideband AFR on my car but when on WOT it is difficult to keep eye on it. I think I will vedio record + Log and compare results.

[AdrianG]

Originally Posted by 8686

Actually I have a wideband AFR on my car but when on WOT it is difficult to keep eye on it. I think I will vedio record + Log and compare results.

One thing I love about the Tactrix (aside from the fast logging and flexibility) is that it has an input for external sensors like Innovate. Which wideband do you have?

[Shiv@Openflash]

Originally Posted by fenton

Can i flash my stock map via Ecutek? I have the stock ROM in the Ecutek format.

I would like the OFT to have the true stock ROM incase i do indeed have to go back to stock for a dealer visit or something like that.

Thanks,

I think you'll have to ask your Ecutek tuner if you can do that. I would think that your ecutek license is long gone since you flashed your ECU with BRZedit. So I don't even know if you will be able to flash the stock ROM in with an Ecutek cable. We could always provide you with a stock ROM that you can load up in one of the 5 map slots in your OFT. That would allow you to go back to stock when needed.

[Shiv@Openflash]

Originally Posted by AdrianG

I see my AFR reading quite rich at WOT as well, reading as low as the sensor is capable of. I know at the edge of the sensor's range the information is probably inaccurate and I've also heard that the stock sensor is not terribly accurate so I see the richness as a bit of an insurance policy.

I'm really interested in seeing some wideband o2 sensor compatibility come to the OFT. As it is I could get an Innovate LC-2 and put it in the secondary o2 position and log it directly with Tactrix, but ideally I'd like the LC-2 to feed the primary o2 information for the ECU. I thought it would just be a matter of updating the sensor scaling in the ROM but what I see is measured in mAh and the Innovate is a 0-5v output.

Granted I haven't looked into it too far. I'd be most satisfied if Vishnu started offering an "Openflash Wideband" option with the sensor, controller, and a harness to connect it to the primary o2 (and provide an extension for OFH users to put the wideband in the secondary bung).

This can definitely be done. I just need to find some time to put this together for customers.

Shiv

[8686]

Originally Posted by AdrianG

One thing I love about the Tactrix (aside from the fast logging and flexibility) is that it has an input for external sensors like Innovate. Which wideband do you have?

AEM UEGO


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[AdrianG]

Originally Posted by shiv@vishnu

This can definitely be done. I just need to find some time to put this together for customers.

Shiv

I know you've got a lot on your plate and unless something terrible happens that probably won't change. Just letting you know there is interest for this.