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Button Functions: 

Slot Dragon Racing Systems have no power switch and, like on ordinary alarm clock, is designed to be left "on" all of the time.  This will enhance your Raceways appearance 24/7 and gravitate people to the playing field . At plug-in the default setting is 1 lap, singles mode, lane one.

Pressing the Mode Button cycles the mode as follows: singles mode lane one--singles mode lane two--doubles mode and repeats.

Pressing the +10 Button adds ten laps. Pressing both +10 and +1 buttons simultaneously (at the same time) resets the count to one lap.

Pressing the +1 Button adds one lap to the lap count.

As each car finishes the Display will show its Elapsed Time (ET). Pressing the ET/RT Button will display Reaction Times.

With the SD2 the ET/RT button has been changed to the DISPLAY button. Pressing the DISPLAY button will cycle through ET, RT/ Fastest Lap/ Average Lap.

Pressing the Reset Button AFTER a race will reset to previous settings.
Pressing and holding the Reset Button will reset the lap count one.

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Requirements:    A Track and a Car.

Snap-on sensor assemblies are available for Two-Lane 1:32 Scalextric, SCX, Carrera, and Ninco/ Dslot 43/ all 75mm HO tracks.

SOME 1:32 CARS MAY NOT BE COMPATABLE WITH SNAP-ON STYLE IF THEIR DOWNFORCE MAGNETS HAVE BEEN REMOVED.

HO PANCAKE CHASSIS (4 gear/Tjets) AND the older LIKE LIKE "M" CHASSIS ARE NOT COMPATABLE WITH THE SNAP-ON GATE SENSOR.

Our Photo Eye Sensors detect any car and can be installed on any track. Installation requires drilling two 3mm holes in the track.


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System sequence:

As a car pulls up to the line, its Stage Light will come on. In the singles mode this starts the race. Exactly point four (0.4) seconds after the Stage Light activates, all three yellow lights come on simultaneously. Point four seconds after that, the green light activates. The timing and sequence is exactly that of NHRA Pro Stock.

In doubles mode the race will not start until both cars are on the line and both stage lights are activated.

If a car red-lights, all three yellow lights will remain illuminated.

The first car to complete the race without red-lighting gets the win light.

Note: The first car to finish always wins. However, occationally the slower ET will score the Win Light even though the faster car did not not red-light.
This phenomenon is known as a "hole shot" win and is due to a superior reaction time. The slower ET combined with a quicker Reaction Time was the over-all faster run.

The System is programmable to 99 laps. The decimal point will move to the left to record longer races. Example times: 3.098, 12.05, 109.8  .