Driving my BJ74 more this winter than last, and am frustrated by the glow screen timer, which just doesn't go on long enough to ensure a good start.
Considered a Wilson switch like I did on Tippy, but Tippy has become a vehicle that requires a weekend training course to understand all the peculiar mods to operate. So, I started thinking of a mod that the powerstroke boys do... they insert a resistor between the oil pressure sensor and the computer, to give the computer a artificially high oil pressure reading. The theory is that higher Oil Pressure means a cold engine, so the computer advances the injection timing, increasing HP. It's a $0.10 mod that gets 25-30 HP and a few MPG better milage. the really clever people install a resistor pot to have exact control over engine timing!
The Glow screen works the same way. Temp sensor sends a signal (a resistance) to a timer, which runs the glow screen for a time based on that signal. Adding a resistor between the sensor and timer relay could do the same thing, and avoid the need for a Wilson switch, making the whole truck just that much more clean and simple.. possibly more attractive to future buyers, and simpler to lend out to spouses and girlfriends. I believe the engine manual has specs on temp/resistance graphs, which would assist in picking the right resistor.
What say the list? Is this idea a gooder or what?
Peter Straub
Considered a Wilson switch like I did on Tippy, but Tippy has become a vehicle that requires a weekend training course to understand all the peculiar mods to operate. So, I started thinking of a mod that the powerstroke boys do... they insert a resistor between the oil pressure sensor and the computer, to give the computer a artificially high oil pressure reading. The theory is that higher Oil Pressure means a cold engine, so the computer advances the injection timing, increasing HP. It's a $0.10 mod that gets 25-30 HP and a few MPG better milage. the really clever people install a resistor pot to have exact control over engine timing!
The Glow screen works the same way. Temp sensor sends a signal (a resistance) to a timer, which runs the glow screen for a time based on that signal. Adding a resistor between the sensor and timer relay could do the same thing, and avoid the need for a Wilson switch, making the whole truck just that much more clean and simple.. possibly more attractive to future buyers, and simpler to lend out to spouses and girlfriends. I believe the engine manual has specs on temp/resistance graphs, which would assist in picking the right resistor.
What say the list? Is this idea a gooder or what?
Peter Straub

