Gauges, A Must Have for a Supercharged Engine

Two gotta haves for running a SDS is a good Air/Fuel Ratio gauge to monitor if your running lean (bad for motor) or rich (bad for fuel mileage) and a manifold pressure (aka:Boost) gauge.

I picked up AEM digital gauges for both. The AEM Wideband UEGO AFR with the Bosch sensor (p/n 30-4100) and the -30-35 Boost (30-4406).

While installing the gauges, I added a DIY Green light indicator for when the Meth Boost / Intercooler Injection kicks in. The meth/water injector has a user selectable set of controls for setting the manifold pressure you want the injector to lick in. The indicator light will give me a positive confirmation that it is working at the specified control points.

I made the indicator from a simple 12v green light and a short piece of 5/16" rubber tubing. The wires for the light are spliced into the power feed line from the Injector controller to the Injector pump.