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Davis Traction Control BB-300 Bump Box Negative Switching
Davis Traction Control BB-300 Bump Box Negative Switching
  • SKU: 075-BB-300

Davis Traction Control BB-300 Bump Box Negative Switching

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The BB-300 is used on trans brakes that have the ground wire of the solenoid available to the user, also known as a “2 Wire Solenoid”.  The BB-300 interrupts the negative battery voltage signal to the solenoid to allow for precise movement when the “Bump Button” is pressed.  The “Bump” is easily adjustable with two dials on the face of the unit, to allow for easy adjustments without confusing digital interface.

The Coarse knob increments in 10 millisecond steps, while the Fine knob increments in 3 millisecond steps.

These increments can easily be changed by the user if a different increment is needed or desired. The unit also allows the user to adjust the amount of safety delay between the “Bump Button” presses, which prevents accidental “double bumps”, by following these simple procedures.


Our “Bump Box” is the only device of it’s kind on the market today. By controlling the trans brake with a high speed micro processor, the car can be bumped into the second bulb with extreme precision and control!

Allowing the driver to focus on the tree, and not worry about rolling the beams.

  • Consistent Staging
  • Consistent Launches / E.T.
  • Better Reaction Times
  • Lower 60 ft Times
  • Stay In The “Zone”
  • Build Launch Boost Before Staging
  • One Touch Operation
  • Allows For Lighter Brake Package
  • Less Stress On Driver
  • Allows More Aggressive Spooling


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PHONE: (586) 294-4404
FACEBOOK: @FullThrottleSpeed
E-MAIL: steve@fullthrottlespeed.com