There seems to be increasing misinformation/questions about how Opensource tuning software works. This is just an overview to give a general understanding of what the software actually does or can do as opposed to a "how do I tune?"guide or how to use the software. Included are links to info about getting started using Opensource software and other information for those curious to learn more about self tuning. The links below are Subaru based tuning in general and not just limited too only Opensource tuning software.
For the most part Opensource software is no different than Cobb's Accessport or Ecutek. Your laptop, along with the purchase of a Tactrix cable, is basically used as the Accessport. The AP is better suited for those that want a very straight forward "plug and play" solution. The Opensource stuff does take a little more computer know how and a little more patience but is a great solution. Just because you choose to go the Opensource route it does not mean you have to tune your own car from scratch. This seems to be on of the bigger "misconception/myths" out there as far as Opensource software is concerned.
There are free premade base maps available on Romraiders site (in the "base map" subforum) or XPT's forums (you need to register first to have access) but they are use at your own risk. You can also have a tuner dynotune or roadtune your car using Opensource,which then they will install the final map for you. Or you can purchase premade custom maps from professional tuners to use as well that usually include remote support. This is know as "E-tuning/remote tuning". You can load the map,take some datalogs and then send them back to the tuner. The tuner can then analyze the logs to see if there are any potential problems. If so then the tuner can retweak the map and send the newly modified map back to you.These maps are generally much more reliable than Cobb's OTS maps as they are more custom suited for your car. It is imperative to make sure you vehicles battery is in tip-top shape as well as your laptop before trying to flash your vehicle. I generally have my laptop plugged in to a 120v outlet when I flash. Also I highly suggest reading all of the FAQ's on Romraider's website before flashing your car! Make sure you fully understand the possible risks of flashing your vehicle and understand completely the procedure!
There are also very cool utility/spreadsheets that can be used for those interested in tuning on their own. These utility/spreadsheets help make the tuning process easier and are helpful in finding potential problems. There is the ability to create a "road dynagraph" from your logs as well as boost graphs,AFR graphs,timing......what ever info you want to plot! Very cool for fine tuning! Also there is a down and dirty Newbie tuning guide available on NASIOC created by Bad Noodle. It is recommended to have a good set of gauges. Boost/Vac(psi/inHg),EGT and oil pressure. Wideband is highly recommended for any engine management but crucial for self tuning. I highly suggest reading as much info as possible before just jumping into tuning on your own. Please read the info first,then ask questions!
Romraider (editor/logger) www.romraider
Ecuflash (editor/flash utility) Main Page - OpenECU
Ecuexplorer (logger/flash utility)
Ecuedit (editor/logger/flash utility) ecuEdit • Index page
Virtual Dyno http://forums.nasioc.com/forums/show....php?t=2157391
EvoScan OBDII Mitsubishi MUTII DataLogger Scantool
Scoobypedia | Trusted knowledge for everything Subaru | Knowledge / ECU
A Complete Tuning Guide - NASIOC
RomRaider - Open Source ECU Tools | Documentation / Rom Raider FAQ
RomRaider - Open Source ECU Tools | Documentation / Tuning FAQ
RomRaider/Ecuflash getting started FAQ - NASIOC
RomRaider • View forum - Tuning Utilities and Spreadsheets
RomRaider • View forum - How-To Guides
RomRaider • View forum - Base Maps
RomRaider • View topic - Turbo dynamics and boost control explained
RomRaider • View topic - Subaru's knock control strategy explained
RomRaider • View topic - Closed Loop to Open Loop fueling transition explained
OPENSOURCE HOW TO: Flash your ecu useing opensource software - Subaru WRX Forum: WRX Forums
YouTube - How to flash a map to your Subaru using EcuFlash
OSecuroms & XPT Tuning •Index page
02 Open Source NO Programming Voltage - NASIOC
programming voltage is 4.2 volts programming voltage is too ECU FLASH ERROR - NASIOC
Amazon.com: How to Tune and Modify Engine Management Systems (Motorbooks Workshop) (9780760315828): Jeff Hartman: Books
Amazon.com: Engine Management: Advanced Tuning (9781932494426): Greg Banish: Books
Amazon.com: Maximum Boost: Designing, Testing, and Installing Turbocharger Systems (Engineering and Performance) (9780837601601): Corky Bell: Books
Amazon.com: Turbo: Real-World High-Performance Turbocharger Systems (S-A Design) (9781932494297): Jay K. Miller: Books
Misc Tuning info:
Engine Management FAQ: Read if you are thinking of buying one! - NASIOC
Full DIY: GM solenoid install (56k warning) - NASIOC
new hybrid mbc/ebc method of boost control - NASIOC
RomRaider • View topic - 16bit Boost Control
RomRaider • View topic - Help me steady my boost during spool
RomRaider • View topic - gm bcs tunning help
RomRaider • View topic - FMIC tuning.. Anybody?
RomRaider • View topic - Tuning for a larger TMIC
RomRaider • View topic - How to tell if turbo efficiency is maxed?
How to adjust your wastegate arm - Subaru WRX Forum: WRX Forums
Aftermarket Boost Control Solenoids - Subaru WRX Forum: WRX Forums
Questions regarding GMBCS - Subaru WRX Forum: WRX Forums
How Subaru’s Factory Boost Control System Works - COBB Forums
RomRaider • View topic - Why MBC's?
ATTN: If your post in not related to the topic, it will be removed/deleted. - Rogan