MSD Atomic Stand Alone Transmission Controller

• The MSD Atomic Stand Alone Transmission Controller delivers precise electronic control over modern four-speed automatic transmissions.
• Simple setup through an included handheld monitor with no laptop or complex software required
• Adjustable wide open throttle shift points, shift firmness, and torque converter clutch behavior
• Vehicle speed sensor configuration and customizable operating parameters
• Real-time data monitoring including engine speed, vehicle speed, throttle position, fluid temperature, shifter position, and commanded gear
• Compatible harness kits available for most GM and Ford four-speed automatics, plus integrated Dyno Mode for repeatable chassis dyno testing
• Backed by a 1-Year Limited Warranty

Today’s electronically controlled four-speed automatics offer performance and efficiency that older three-speed setups simply cannot match. Instead of relying on outdated kickdown linkage or factory programming that never quite fits your build, you can take full control of how and when your transmission shifts. Dial in crisp part throttle manners for the street or aggressive wide open throttle behavior for the track, all while monitoring live data from the passenger seat. Take the guesswork out of tuning and put precision back into your drivetrain with the MSD Atomic Stand Alone Transmission Controller.

The MSD Atomic Stand Alone Transmission Controller is designed to simplify installation and setup, building on the user-friendly foundation of the Atomic EFI line. Using the included Handheld Monitor, you can adjust wide-open throttle shift points, vehicle speed sensor configuration, torque converter clutch operation, shift firmness, and more without the need for a PC or complicated software. The monitor can remain mounted to display real-time data such as engine speed, vehicle speed, throttle position, transmission fluid temperature, shifter position, and commanded gear.

Initial setup walks you through selecting your transmission type, such as GM 4L60E or Ford 4R70W, along with engine cylinder count, rear gear ratio, transfer case ratio if applicable, and tire height. Compatible harness kits are available for most GM and Ford four-speed automatics, and Dyno Mode can be activated to provide consistent, repeatable chassis dyno results. Backed by a 1-Year Limited Warranty.