The TwEECer is an adapter which connects to the J3 service port of a Ford EEC PCM, gives you the ability to substitute parameters in the calibration data with parameters that match the modifications which you have made to your engine.  It will retrive the factory programming for you and you can change it to your desire.  You can get the factory program as many times as you like.  You will never loose it. So as you add performance to your car, up to 4 different programs, so you can easily match the EEC's calibration to your combo.

How?

Using your Laptop or Desktop PC, you connect the TwEECer to the USB port and run the user interface software CalEdit, which comes with the TwEECer. CalEdit gives you a very nice and easy to use graphical user interface for making changes to your calibration. Once you have your calibration setup as you like, then write/save the binary to disk and to the TwEECer as many times as you like.   

What features does the TwEECer have?
In addition to giving you complete control over your EEC, it has a few additional features which make it stand out above the rest.


TwEECer RT.with Real Time data logging & display along with playback capabilities. This allows you to see how the EEC sees things. This is a tremendous tool for tuning as there will be no more guessing as to what the EEC is calculating values to be.
Four calibration locations. The TwEECer gives you the ability to flash four (4) completely independent calibrations and switch between them, all while the engine is running. An excellent feature if you want an Economy/Performance option or NA/Nitrous option. No other flashable chip/tuner on the market offers this feature. There is a 5th position which "Turns OFF" the TwEECer and returns to the stock settings, no need to waste a calibration location for a safety net. 
The TwEECer comes with CalEdit, a very intuitive and simple to use for making changes to your calibration data.

Calibration data that you can change includes:

Engine displacement
Injector size
MAF function
Base / Stabilized / startup fuel mixture
Base / Altitude / Limp mode spark tables
AOD-E shift points, TV Pressure, etc
Drive & Neutral idle rpm 
Rev limiters 

Speed limiters 

This is just a brief example list of the calibration data available to be modified.

 

Screen Shots.

Tweecer RT Datalogging screen.

     On your laptop, it displays and records 16 perameters while your driving.

     You can also graph you results and save them to compare later.

 

The programming part consists of three types of screens. 

Functions, Scalers and Tables.

 

Scaler Screen Example.

     Scalers are constant one numbered items like rpm limit and engine size.

 

Function screen

     Functions are graphed items like MAF transfer screen.

 

Tables Screen

     Tables are Tables like the spark table below.

 

 

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