Funks

iTrader: (3)

Tuner: Eric of Torqued Performance
Type: eTune using RomRaider, ECU Flash and OpenPort 2.0

Cliff Notes: Love the tune, looks safe, great turnaround, and great price!

Car: 2012 USDM STI - GR Hatch

Mods:

Previously had a COBB AP and Stage 2 ACN91 OTS Tune, decided to go with an Open Source tune from Eric of Torqued Performance (per great personal reviews from other dublin meet folks). Also had the the infamous GR 2500K RPM stumble from time to time which I hated .

The first thing I noticed about Eric, he replies too darned quick, I am not sure if the guy sleeps - lol. First thing he stated was that he won't tune the car if it didn't have the fuel line extension mod, or the iaPerformance or Cobb stumble fix. Fair enough, the stumbles suck and a mechanical fix cures most of it with the rest being a good tune. Decided to create this HOWTO / WRITEUP (money saved can go towards a wideband IMO)..

He gave me a base map which I flashed and asked me to take a 15-minute cruise log, and some 3RD gear WOT pulls from 2500 -> 6500 logging the following parameters in RomRaider. Note: some extended parameters in ROMRAIDER won't show up until you plug the laptop into the car


A/F Correction #1(%)
A/F Learning #1(%)
A/F Sensor #1(AFR)
Engine Load (4-byte)* (g/rev)
Engine Speed
Feedback Knock Correction (4-byte)*
Fine Learning Knock Correction
IAM
Ignition Total Timing
Injector Duty Cycle
Intake Air Temperature
Manifold Absolute Pressure (PSI)
Manifold Relative Pressure(corrected)(PSI)
Mass Airflow (g/s)
Mass Airflow Sensor Voltage
Throttle Opening Angle(%)
Vehicle Speed (mph)


I also threw in the Wideband Output from my Zeitronix ZT-3 as the calculated AFR from the front O2 sensor on the Subaru doesn't read richer than 11.1.

The REV1 map was the basemap and was to be used to initially dial the car, considering it's supposed to be extremely safe, IDC was through the roof, and the AFRs were definitely not CARB legal - lol.. Sent him 2 cruise logs, and 3 - 3RD gear pulls. next day, I get an e-mail stating - here's your REV2 map, and please do some pulls when you get a chance. I was like, does this guy sleep?

That night, data logged the REV2 map - air fuel ratio's you can land a plane on, total timing at peak torque was around 10 degrees (advanced) - rising to around 18 degrees by 6500 RPM. Nothing in the fine learn knock, or feedback knock. Sent him the logs and 30 minutes later he e-mails me, he's your REV3 map and let me know how it goes. Whuut? Getting a response in 30 minutes? Does this guy not sleep? No wife?


Flashed it the next day and data logged the REV3 map - air fuel ratio's you can land a plane on, total timing at peak torque was set to 11 degrees (advanced) - rising to around 19 degrees by 6500 RPM. Nothing in the fine learn knock, or feedback knock. Sent him the logs and we are both pretty happy with it, asked me to take a log after 200 miles to see how it's learning..