K&R Performance Engineering

he biggest enhancement in the Pro-Cube II is the new Z-force transbrake trigger capability. Z-force, short for zero force, is an option exclusive to the K&R Pro-Cube II delay box that allows the driver to depress the transbrake button to start the delay cycle, rather than release it. On and off-track testing has shown monumental gains in reaction consistency for many drivers using this system over the universally accepted push and release routine.

The Z-force option isnât a completely foreign concept. Weâve used and sold an adapter box in the past that allowed a similar routine, explained K&Rs Kevin Rodden.I âm a bracket racer myself, and I started â pushing rather than letting go of the button a few years ago. My reaction times have improved as a result, as have many of our customers. With the new Pro-Cube II, we simply made Z-force an option. Now the push capability is there in one box, and the Z-force option is easily enabled and un-enabled, so drivers have the choice whether to let go or to push to start the delay cycle.

The Z-Force option works like this. In a typical race setting with a standard delay box, a racer depresses the transbrake switch upon completing his or her staging procedure, then releases the button when the Christmas tree activates, thus starting the delay cycle that eventually releases the transbrake and launches the vehicle. With Z-force, upon completing the staging procedure, the driver taps and releases the transbrake switch. This locks the transbrake, holding the vehicle steady. When the Christmas tree activates, the driver then depresses the transbrake switch again to activate the delay cycle. It is the depression, or contact of the switch that activates the cycle, not the release.

What the Z-force option does is take the variable of button pressure, or at the very least the thought and worry of button pressure, out of the equation, explained Rodden. As racers, a lot of times weve found ourselves mashing down on the transbrake button, or getting light on the button in certain situations--whether consciously or unconsciously. The Z-force system is just that: zero force, so it eliminates the variable of the pressure applied to the button. When the top amber comes on, just tap the button, and youre set. For a lot of our customers its proven to be a huge driving aide.
The K&R Pro-Cube II delay box has all the features and benefits that K&R customers have come to love from the original Pro-Cube design. The Pro-Cube II comes in the same compact, easy-to-use (even with gloves on) design, and has the same dimensions and mounting hardware as its predecessor. Just like the original Pro-Cube, the Pro-Cube II offers K&Rs familiar Bump Down and Bump Up features, a large LCD display, quick set switches for easy & instant changes in any setting, Flinch protection, Transbrake lockout options, Full & Pro Tree modes (that save independently for quick and easy transformation), 3 separate and independent timers (for throttle stops, shifters, nitrous, etc.), K&R Pro-Stage technology, LED Indicators, and built-in overload protection. And of course, the Z-force option is easily activated and de-activated for drivers to use either driving style.

As a limited time bonus, K&R is offering the Carbon Illusion Pro-Cube II delay box as pictured at no additional cost. The Pro-Cube II is also available in the standard K&R Slate gray metallic finish.

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