The MAP/TACH SETPOINT CONTROLLER™ is a 2 input (RPM and/or MAP) electronic module
that maybe be used to turn on or off auxiliary devices such as nitrous solenoids,
water injection pumps, supplemental fuel systems, and more, based upon either and/or
engine RPM and manifold pressure. This unique little “switch” requires +12VDC battery
voltage to operate. The MAP/TACH additionally has a +5VDC output to power a MAP sensor.
At $195, it’s an inexpensive but invaluable piece of hardware for the automotive