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PERFECT TORC GM 4L60/65E & 4L80/85E Transmission Controller By Painless Performance

P/N 66501

PERFECT TORC GM 4L60/65E & 4L80/85E Transmission Controller


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American Made


State-of-the-Art stand-alone transmission controller for the General Motors 4-speed 4L60/65E and 4L80/85E automatics. Fully compatible with carburated, fuel injected and diesel engines. Laptop software included with several "base" calibrations to start off with for each application.

If you are using a GM 4L60E, it will fit 1996 and newer GM 4L60E transmissions only. (On later model 4L65E models it is not necessary to plug into the input shaft speed sensor.)

If you are using a GM 4L80E, it will fit 1995 and newer GM 4L80E transmissions only. (If earlier unit is desired to be used; the "Bosch" style pressure control solenoid MUST be replaced with the newer "Holley" style pressure control solenoid.

Be sure to click on the "Manual" link and download a copy of the TORC instructions to read about why it is the simplest electronic transmission controller on the market.


Basic required connections to run these transmissions with TORC:

1) (1) Ignition Switched Power and (2) Grounds

2) (1) Throttle Position Signal (5Vref and Reference Ground provided for Carb and Diesel applications where a universal TPS is used.)

3) Plug in the main 20 pin transmission case connector and the 2 pin Vehicle Speed Sensor connector.

Optional Accessories with TORC Module:

1) Push Button Shifting - this system includes three momentary push-buttons that can be used to up-shift and down-shift the transmission once the manual lever is pulled into drive. The third push-button is used for enabling/disabling the push-button option.

2) Table Select - this allows two different shift tables to be calibrated for one vehicle. Using the included toggle switch; one can simply have a street calibration in Table 1 and a drag strip calibration for Table 2.

3) Speedometer Signal Output - this signal from the TORC module can be calibrated to compensate for tire size changes, third member gear ratio changes and to accurately syncronize an aftermarket speedometer using a GPS device. It can also be calibrated to send the correct signal to most aftermarket Electronic Fuel Injection Systems.

 PERFECT TORC GM 4L60/65E & 4L80/85E Transmission Controller By Painless Performance



ECM Flash Program



This is a basic start and run tune that we only recommend for a near stock application. We will only change the following parameters: delete VATS/PASS-KEY security, cooling fan on/off temperatures, rear end gear ratio, tire size, speed limiter, rpm limiter, idle rpm, and we will adjust the check engine light parameters. If your setup requires any other parameters tuned you will need to locate a local tuner. All ECMs are left unlocked to allow easy access for your tuner.

Step 1: Purchase one of the qualifying part numbers. See below for that list.

Step 2: If your part number is highlighted RED proceed to step 3B. If your part number is highlighted BLACK, proceed to step 3A.

Step 3A: If you have arrived at this step, your harness does not come with an ECM and you must provide one to be flashed. Please reference the manual with your harness to confirm the ECM part number required.

Step 4A: Once you have received your harness, please cut the Barcode label from the box as shown in the picture below.

Step 5A: Package and mail your ECM along with the Barcode label, a copy of your purchase receipt, and your ECM form that you are about to complete. (The address will be provided after you complete the form). We will pay for return ground shipping*. If you request a faster service, you will need to provide a return label.

Step 3B: If you have arrived at this step, your purchase comes with an ECM. You must fill out our ECM form BEFORE your purchase will ship. Proceed to Step 6.

Step 6: Click the “Start Here” button below to fill out our ECM questionnaire.

Step 7: Once we have the ECM, we will use the data from the form to flash the ECM. Then, once it has been flashed we will package the ECM and ship it back to you. If we encounter a question, we will contact you. This process can take 1-3 days.

Step 8: Once you receive your ECM, it is ready to go.


*Note: Our free return shipping is ONLY good for the lower 48 states, via ground UPS. If you are outside of those states, you must provide a return shipping label with your order. If your purchase comes with an ECM, the shipping will be covered via the retailer you purchased from.



Click the Start Here button below to get your FREE ECM Flash!

Click Here To Start The ECM Reflash Process


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