The definitive EcuFlash Evo 10 thread

[razorlab]

I'm starting this thread now since I had some free time over the thanksgiving holiday to actually put some time into making this. This first posting will be ever evolving with updates and new information EcuFlash tables and what they do: ----------------------------------------------------------------------------------------- Timing: ----------------------------------------------------------------------------------------- Timing Map High Octane This is the main Ignition timing map that the ECU uses at all times if there is no substantial knock or other problems. This is based off RPM and Load. Timing Map Low Octane This is the secondary Ignition timng map that the ECU interpolates with the High Octane Timing Map depending on knock activity. Mivec Intake #1 This is the adjustable Intake Cam map #1 Mivec Intake #2 This is the adjustable Intake Cam map #2 Mivec Exhaust #1 This is the adjustable Exhaust Cam map #1 Mivec Exhaust #2 This is the adjustable Exhaust Cam map #1 Ignition Warmup Retard This table is used on warmup and also used on the MR SST model for shift ignition retard EGR Timing Advance This table is used at cruise loads when the EGR is active to advance ignition timing Fueling: ----------------------------------------------------------------------------------------- Fuel High Octane This is the main fueling map that the ECU uses at all times if there is no substantial knock or other problems. This is based off RPM and Load. Fuel Low Octane This is the secondary fueling map that the ECU interpolates with the High Octane Fueling Map depending on knock activity. Fuel Injector scaling and Latency Injector scaling table is used for scaling the injectors (changed when adding larger injectors). Injector Latency table is used in conjunction with the scaling table to set injector latencies based on voltage. Boost Control: ----------------------------------------------------------------------------------------- Base Wastegate duty Maps This table is used to set your base turbo boost level off the first solenoid in the boost control system. It is based off wastegate (solenoid) duty cycle, TPS % and RPM. As you can see it is maxed out at 100% duty cycle at WOT from the factory Base Wastegate Secondary Solenoid duty Maps This table is used to set your base turbo boost level off the secondary solenoid in the boost control system. It is based off wastegate (solenoid) duty cycle and RPM. Boost Target Engine Load Maps This table is used for the boost error correction system to keep your base boost levels in check. It is based off a target load at TPS % and RPM Boost Control Load Offset This table number + the Boost Target Engine Load number = Target Load Turbo Boost Error Correction If the engine load is above or below the "Target Load" (see Boost Control Load Offset + Boost Target Engine Load tables) by a certain percentage, then actual wastegate duty cycle is added or subtracted depending on this table. Boost Control RPM Crossover (Gear based) This table is used to see the RPM/MPH crossover for gear based boost. In stock form, the GSR model does not take advantage of this feature (but can be tuned to do so). The MR model uses this feature to keep boost lower at approx 3000-5000rpm in 1st gear. Boost Limit This table sets the boost limit (fuel cut), based on load. Boost Cut Delay Timer This table tells the ECU how long the ECU will let the car be above the "Boost Limit" before it cuts fuel. 1000ms = 1sec Drive by wire throttle mapping These are huge maps, click here for full size (2492x1761): ----------------------------------------------------------------------------------------- More to come....

[razorlab]

You can get the latest/greatest EcuFlash version from here:

http://www.openecu.org/index.php?title=EcuFlash

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Here is the approx path a 100% stock Evo 10 takes through the Ignition and Fuel maps at WOT: (based on data logs of 5 different stock Evo 10s)

[gsrboi80]

The new standard is here. Now you'll start seeing some fast X's. With the ability for the end user to log, tweak, log, and tweak. You can know that your car is tuned right and make the adjustments where needed.

PROPS ALL

[honki24]

Looking worthwhile to pick up a X.

[tkklemann]

Nice Job Bryan. I am getting eager to start playing with an X..

[triso]

Awesome, thanks razorlab.

[supersilverMR]

Thank you Tom Cruise, baby Jesus, And razorlab!!!

[Mellon Racing]

nice write up Bryan, I think it's interesting that the high/low octane fuel maps are very similar. Also I'd like to see the USDM vs JDM maps for comparison

[Rguy]

Awesome, thanks for the write up.

[MR Turco]

Great stuff!!

[xPRimNT]

Thank you so much. Look forward to anything you add!

[razorlab]

oops, I spelled definitive wrong, can a Mod change the title for me? thanks

[G20]

thank Bryant for taking your times to write this. Now I have a reason to get an X.

[spdracerut]

Interesting how the wastegate duty cycle table for the first solenoid is RPM vs TPS. It makes perfect sense to adjust boost based on throttle position; you want more power/boost, you use more gas right?

That's probably why all the cars with MBCs running lots of boost a part throttle were causing the car to go into limp mode.

[aftershock141]

Wow man awesome!

I'm used to doing this with Hondata Kpro so I was wondering if I'd really ever be able to do it with the X. I guess here's the answer.