What to Look for When Buying Programmers for Chevy Silverado 5.3 Vortec. Before buying, decide what results you want to achieve. While some tuners effectively boost horsepower, torque, and fuel economy, you may want a product that also allows you to adjust your speed limiter, rev limit, and tire size, and multi-tune and DTC reader capabilities. GM Computer Tuning Engine Swaps & Performance Mods Technical Info Featured Vehicles Customer Cars Events Links Home Email: [email protected] GMtuners.com - Performance GM Tuning ↑ use the navigation links above to navigate this site ↑. PE Tuning Info. Naturally Aspirated. Air/fuel ratio for peak power is 12.8. If tuning on a Dynojet, try for 12.2 – 12.5 air/fuel ratio. If tuning on a Mustang dyno or on the street try for 12.8 – 12.9. Some tuners say that LS motors run the best at 13.1.
Openport 2.0 - Your key to tuning
From reflashing to logging to diagnostics, the Openport 2.0 can do it all with just a PC laptop and a USB port. Use it with our EcuFlash software for unlimited tuning and logging of Subarus, Mitsubishis, and an ever-expanding list of supported vehicles. The Openport's industry-standard SAE-J2534 interface can also be used with OEM reflashing software for any car sold in the USA since 2004.
A Smart Cable Means Faster Tuning.
The Openport 2.0 uses a built-in 32-bit ARM processor to allow fast communication with your ECU without burdening your PC - which means reliable faster reflashing and logging for you. Using built-in microSD slot, the Openport can log continuously from your ECU without a PC, day after day, to help work out those hard to replicate bugs in your tune.
EcuFlash - Freedom to Tune
EcuFlash is our free software used with the Openport 2.0 to give you the power to tune and reflash many Subaru and Mitsubishi vehicles. Unlike most commercial tuning solutions, EcuFlash doesn't limit how many cars you can flash, what parts of a ROM you can see, or what you can share with someone else. This ability to share information and ideas has helped found and build the OpenECU community of enthusiasts and professional tuners alike.
Look for integrated logging, OBD diagnostics, Honda, Nissan, and Mazda support coming soon!
Tighter Boost Control
Our 3-port boost solenoid upgrade along with EcuFlash tuning allows for consistent boost control at levels much higher than factory solenoid supports. This solenoid includes a harness compatible with Subarus and Evos.
Reduced Hours
Due to variety of local, state, and federal COVID-19 related restrictions on person movement, Tactrix will be working under reduced hours until such restrictions are lifted. We will be attempting to remotely answer email inquires (while also watching our own children and keeping our spouses sane('Happy wife, Happy life!')) and coming in to the office periodically to ship orders. We expect that we will still be able to supply hardware regularly, but in some cases it will take an extra day or so to process. We thank you for your understanding and wish you and your families good health during this challenging time for us all.
EcuFlash 1.44.4799 ReleasedEngine Tuning Software
Go here to download and see what has changed.
We have moved!
Tactrix has moved its operations from Seattle to San Francisco. Our new address is
Tactrix Inc.126 Russ St. San Francisco, CA 94103-4010
We are excited about our move to San Francisco and the improvements in our products and service that our new employees will bring!
Our new building is solar powered and generates more power than we use, so we can save our CO2 production for going fast!
Tactrix Storenone1 ECU Tools (2) Tuning Tools and Parts (1)
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Contents
Tunerpro
Tunerpro is a software package designed for the DIY tuner. It does one thing, edits bin files, and it does it very well.
It is free, and requires a definition file to work…
Well, I have worked very hard to make a definition file that works well with tunerpro, and here it is. It is heavily documented with comments, and all of the parameters are categorized.
Loading tunerpro with this XDF and switching to ‘Category’ view provides an excellent tuning environment that should make any LT1 enthusiast happy:
It DOES NOT flash ecms, and requires standalone software (see below) to become a complete lt1 tuning solution.
LT1Edit
LT1Edit was written by one of the first researchers into the EE platform. This is a dedicated editor written for one platform only, and is not extensible.
It provides a built-in flash utility. It has the LEAST amount of parameters available of any EE tuning solution, due to being fairly out of date and being geared towards the beginner. It currently costs $200 and is locked to a single ECM.
I can’t recommend purchasing this software package nowadays.
Tunercat![]()
Tunercat is a package designed to edit bins for a wide variety of platforms, including the LT1. It is extensible and capable.
The maintainer of tunercat is a very capable bin hacker, and has discovered many of the parameters now known to the LT1 tuning community.
His software is affordable, not restricted to a single ECM, and has a built-in flash utility.
Standalone Flash Tools
If you’re using tunerpro, you will also need a flash utility of some type. Assuming you do not already own LT1Edit or Tunercat, there are three standalone options:
Flashhack
This is in my opinion one of the best flash tools out there. I say that because I wrote it myself. Really though, it’s modern, fast, has top end features, and is designed to be incredibly safe and resistant to bricking your ecm. Go get it for free here.
EEHackFree Ls1 Tuning Software Download
This software will have its flash tool removed soon, as the free flashhack tool (above) is much better.
Best Ls1 Tuning Software FreeWinflashHp Tuners Ls1 Tuning Guide
From the maker of tunerpro, Winflash is another excellent standalone flash utility. It’s $20, and a 30 day trial is available.
Recommendations
My tuning documents will assume you are using tunerpro with my EEX definition file for editing, flashhack for reflashing, eehack for logging.
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