East Coast Supercharging ECS Alky C7 - Manual (Page 18)

7) The gray/violet wire
Be careful on how this wire is to be used, most applications will not benefit
from it being connected. Here’s the principle and connectivity. The violet wire
while a ground is applied will limit the pressure output of the system. And its only use is
to help assist with spool-up while brake torque is applied to spool the turbo in a racing
application. So here are some ideas and methods to connect the wire for this feature
to be present.
Simplest method is a momentary toggle switch in the ashtray whereby one leg of the
switch goes to ground, the other to the violet wire. While staging the car, depress the
switch and build boost.. As soon as the car launches release the switch and the system
goes back to normal.
Next is to wire a relay to activate while the brake is being depressed. To do so, wire the
Bosch 30 amp automotive relay as follows. Terminal 85 to the blue wire with stripe on
the brake pedal switch. Terminal 86 on the relay and terminal 87 on the relay to chassis
ground. Terminal 30 to violet. When the brakes are applied, the relay “clicks” thus
applying a ground to the violet wire.
The gray wire can be used to trigger an auxillary system. In case a solenoid or other
device requires a signal once the system activates.
Typically these wires are not used.
8) Final
At this point you’ve concluded the installation, first thing to do is before putting
alcohol/water into the tank, is start engine and set the blue gain knob to the middle
position. Next depress the black test button and observe the turn-on LED next to the
boost gauge lights up red. At this point observe the low washer fluid lamp, which
should also be lit if the tank is empty. If everything checks ok, fill the tank with
alcohol/water, and check for leaks coming from fittings that may have not been
tightened. Start the vehicle, place gain on position 8, and push and hold the test
button. Observe the turn-on LED illuminates red, then goes green since pressure now
has been established. Motor should also stumble. NOTE>>> on twin nozzle systems
LED will not go GREEN on TEST.