hackish

Yes, something similar. Also tried a few different things from translation to full signal synthesis. Some were successful but too involved and too expensive to implement. It's not always that hard to trick a stock ECU but when you throw in the weird MAF stuff and the DBW it's very very limiting.


I spoke at length with the haltech people telling them exactly what we needed in order to get proper O2 modification to work but it fell on deaf ears. Maybe they finally did implement the changes. If so it could work for an NA setup.

The reflash adjusts the open/loop, closed loop settings. It also changes the rev limiter - something not possible at all with any piggback. It also changes the open loop fuel table so the AFR's are correct. Most recently it's able to alter the mivec engagement point. It also adjusts the timing maps for better performance. It removes the speed limiter present on some vehicles. For turbo vehicles it also scales the injector size and latency table so you can actually get your car to start and run with big injectors.

I should be finishing up the turbo tune this month and posting dyno results. I'm trying to find someone locally with the RRM kit so I can swap in big injectors and develop a tune for it.

-Michael

cyanide

iTrader: (4)

Rev limiter... Peak hp is achieved close to 6k rpms on NA RAs, so it will only make longer gears for me.

Alter MIVEC... How? Open earlier? That sounds good...

Timing maps... What is it based on? NA or Turbo? I'm NA, not planning on turbo anytime soon. Advance?

Speed limiter... What's the speed this ECU limits at? I've done 125mph, and it wanted more, but I couldn't get myself to take it that far. Remember, I'm NA.

Correct AFR's... How? From the wideband readings at the dyno, I could see similar AFR curves (in form), but one leaner than the other(comparing both ecus I mentioned earlier).

What would be the AFR range and will it be straightened out or similar to this with different values?

Loop settings... What will it be, open or closed? What will this do if I'm not tunning? I know that the open loop condition will let go of the O2 sensors and let the ECU do the fuel trimming, but how will the ECU handle this?

Let's say I go with the reflash, but I want my AFRs at 13.2 all across the 3K to 6.5K rpm range. Are you able to create this tunning or will the ECU decide what's best, even though it's reflashed?

I have 2 ECUs laying around, apart from the one I'm running my car with. The one I fried (or at least thought I did) only needs to have a wire grounded for it work and run properly. This is the factory one which is an '05 (red line AFR on the graph). The other one is the '04 (blue line AFR on the graph) which is the one I thought to be Cali specs, but I was wrong. Dealer explained that there are different maps for each year according to what was found during testing.

So, I'm still thinking which way to go... The reflash is your product, so I understand why, after all your R&D, this would be the best option. Have you done this to NA RA's? Any Dyno info?

*02Lancer*

iTrader: (3)

So it say's the rx-7 are not direct plug in play what elso would you need to do? Splice in the harness?

Ralliart_on_LSD

iTrader: (8)

no idea, but this is for the ralliart 2.4 liter 4g69 motor. Not the base model 2.0 liter motor.

manolo2011

iTrader: (4)

this is grrrreeeeaaat....

MitsuLance

Okay, I have a few questions on new fits for fuel injectors. Would 2012 STI fuel injectors be compatible with my fuel rail and engine? If not the fuel rail, where could I get a fuel rail to compensate for the injectors, but still fit comfortably in my engine compartment?

CrAnSwIcK

iTrader: (5)

they're high impedance top feed, so they should work with the ECU. As far as the rail goes, it looks like a standard top feed size, so I wouldn't forsee any issues there...the connector looks the same, so they may even be plug and play, but none of this is confirmed, so you'll have to let us know...off course you'll need custom fuel rail spacers to seat them correctly.


what are you planning to run for boost? and how are you tuning?

MitsuLance

Um, for boost, probably only around 12 to 14 pounds. Tuning? I don't have any friends that can tune, so I'll probably bring it to the closest Evo/STI shop to have them tune it.

CrAnSwIcK

iTrader: (5)

they may not be able to tune your ECU...I highly doubt they have the required definitions and patches...hackish is the only person I know of that can actually prove their software works...there are a few others that say they can do it, but I've yet to see any tangible evidence of that.


It's not as simple as reflashing with an Evo ROM, like on the 4G94 ECU's...you can try them out, but the chances of them being successful are slim. Have you actually spoken to any shops about it? 12-14psi, you're going to need a very reliable and fail safe firmware patch, and software to go with it...a piggyback would be very unwise with that kind of boost...6psi has killed these motors with piggyback tuning...

MitsuLance

Well, what I plan on doing is exactly what I've read. New pistons, new cam, new fuel injectors to handle the larger boost, new control arms. All the basic's to strengthen to engine to handle at least 400 hp. That way I'm not over stressing the engine. As for getting it tuned, they won't just throw an Evo tune on there. It isn't an evo. I will make sure that I get a custom tune. If that isn't applicable, where is Hackish's thread so I can place an order. lol