TrackTune Launch Timing

The launch timer times a launch by itself, with nothing to press. Stop for a second and it’s ready. It starts the moment a wheel turns and stops at the target. For track and closed-course use.

Add Launch timer to a custom dashboard, then select it to change its controls. TrackTune must be installed on the car; follow get started with TrackTune.

Configure the timer

• Launch timer: the target, in three rows: mph (0–60 or 60–130), km/h (0–100 or 100–200), and Drag (⅛ mile or ¼ mile). Then Layout (Stacked, Side, or Row) and the Gap.
• Show: Last run, Best run, Trap speed (⅛ and ¼ mile), Wheelspin at launch, RPM at launch, Status (ready, timing, done, aborted), and Labels.
• Card plates: Opacity, Radius, and Outline.
• Colors: Values, Labels, Target, timing, Ready, Aborted, and Cards.

Timing and run limits

Times come from the car’s wheel speeds, which arrive about ten times a second. Times are shown to a tenth of a second; that display precision is not a measured accuracy guarantee. Speed is the mean of the front wheels, which don’t spin with the rears. 60–130 mph and 100–200 km/h are timed from where the run passes the lower speed. The ⅛ and ¼ mile trap speed is the average over the last 66 ft, as at a drag strip.

A lift off the throttle, a stop, or running out of time ends the run. The limit is 20 s for 0–60 mph, 0–100 km/h, and the ⅛ mile, 30 s for the ¼ mile, and 60 s for the two rolling targets. A run that reached no target and stayed slow, such as creeping in traffic, is dropped. The last and best time for each target last the session.

Launch strip in Add is the time with last and best run in one row. In the builder, Spirited launches from a stop every loop; the recorded Live drive may not.

Readings for other widgets

Use a number, bar, or other widget to show Launch, Last, and Best for each target (for example Launch 0–60 mph, Last 0–60 mph, Best 0–60 mph), ⅛ mile Trap Speed and ¼ mile Trap Speed, Launch RPM, Launch Wheelspin, Launch Wheelspin Time, Time to First Shift, and Launch Runs.

Results last for the session, including switches to CarPlay or Android Auto. Switching the car off for at least 5 seconds starts a new session. See dashboards and widgets for what the car needs and session readings.