Propane injection is a story in itself. Propane injected into the incoming air both oxidizes and provides extra fuel to the incoming air charge. The result is the same as adding fuel and air at the same time, and the results can be dramatic. Combined with other mods, it can provide true "Yee hah" diesel performance, as evidenced by our 6.0L's 423hp rear-wheel dyno run. With automatic transmissions struggling to keep up with today's performance diesel mods, you'll want to take care when you reach those sorts of levels. Fortunately, the aftermarket is working to keep up by offering the appropriate auto tranny mods, so most times there's no excuse for smoking a tranny. If your wallet's too thin to spring for the appropriate tranny mods, self-control is needed in going for those big-power mods.
So, how did the big Ford do after the mods were complete? Without propane, we recorded just over a 100hp gain. With propane, we got close to 150 hp. Unfortunately, we missed the opportunity to do some 0-60mph tests on the bone-stock truck, but by averaging available test information for similar trucks, we think a very respectable 10.5 seconds would be a good number. After the mods, our tests yielded an average of 8.4-second 0-60 times-without propane injection. That's a very respectable number for a truck that weighs in at over 7,500 pounds.
 The Edge Attitude Monitor and Juice Module offers five levels of increased power and real-time monitoring of several engine performance parameters. Power levels can be changed on the fly. The kit could easily be called "plug and play," but if you want the EGT option, you must install the optional pyrometer (exhaust gas) sensor. |  The module plugs in next to the underhood fuse box. If you don't choose the Attitude Monitor (we recommend you do), you will run a three-position switch into the cab and have only three power levels. |  Some drilling and tapping is necessary to install the optional pyrometer thermocouple into the driver-side exhaust manifold. It's accessible from underneath. Drill a 5/16-inch hole and tap it with a 11/48 NPT tapered pipe tap. Avoid getting metal chips into the manifold because they could harm the turbo. If you start with a cold engine, you can drill most of the way through, then start the engine to drill the last bit. This will blow the chips out as you punch through. Use grease in the tap recesses to catch the tapping chips. Route the lead up to the module and connect it. |
 A new pod mount makes the monitor installation easy and slick looking. The wires are routed under the dash and then through the firewall to be connected to the Juice Module. | | |