MSD Three Step RPM Module Selector
  • Thumbnail  MSD Three Step RPM Module Selector

MSD Three Step RPM Module Selector




Part #8737

1.- RPM Module Selector

Burnout RPM LimiterYes
Module Range Maximum (rpm)11600
Module Range Minimum (rpm)3000
Package ContentsModule selector, 4-Mounting Screws, Parts Bag, Wiring Terminals Note: RPM pills sold separately
High End RPM LimiterYes
Housing MaterialHigh Quality Plastic
Color / FinishBlack and Silver
Mounting MethodScrew down
Starting Line RPM LimiterYes
Module Increments (rpm)100


The MSD module selectors allow you to choose two or three different RPM limits that can be activated at different times. With this ability, the possibilities are endless. As an example, we’ll use a drag car with a three step module selector plugged into the RPM socket of a 7AL-2 ignition. The different RPM modules are activated when 12 V are applied to a corresponding wire. By connecting one wire to the line-lock circuit, one module will be activated during the burnout. This helps keep tire temperatures consistent. When the line-lock button is released, the limit turns off.

  • checkmarkAllows user to switch between 3 RPM/timing modules
  • checkmarkSet different RPM limit for burnout/launch/over rev
  • checkmarkCan be used w/timing controls for retard changes
  • checkmarkMust be used with MSD soft touch rev limiter
  • checkmarkNo RPM or Retard Modules are supplied