I ran across some guys last night that were driving a SD. We got to talking about my pipes and mods. I asked what he had on his truck and he said "A 110hp chip and a 100hp resister." I said "WHAT???" He said he was using a 1k resister. He flipped it on and that thing sounded like it had a cam the size of the crank in it. He mashed the pedal and it poured black smoke. But it sounded like it was missing, or hitting the rev limiter. Do they have RL's on psd's? I asked how many HPOP's he's gone through. He said none. Then they invited me to a party. Sadly I had to decline, but they seemed to be pretty cool guys. Have any of yall heard of running that?

RubberDuck

 

I've only seen one guy running a resistor that low. Acted the same way you describe. Later that same day on the dyno he ended up removing the resistor because he made better power without it.

We do have a rev limiter built into the PCM, 3400 RPM.

 

I just figure that can't be healthy for the HPOP. When I dyno'ed a few weeks back, I made 2 pulls. One with the 10k on and 1 off. The 10k showed 7hp and 31ft/lb all the way through the curve. I figure that's money well spent. I tried the 5.6k way back when, It pulled hard through 3rd gear, but after that the truck fell on it's face. So I figured 10k was as far as I should go.

RubberDuck

 

What exactly are the "K" mods? I don't understand what they are or what they do to give a truck more power. I have heard of several references to them, mostly regarding the "10K mod" and the "18K mod". Please elaborate for me. Thanks.

Gary

 

The short version is: you put a 10K ohm resistor across the leads of the injection control pressure (ICP) sensor to fool the computer into thinking the high pressure oil pressure is low. More HPO pressure squeezes the injectors a little harder....gives it a bit more power.

 

10K = 10,000. 10,000 ohm resistor. Always a fun starter mod.

RubberDuck

 

where would on get a 10k resistor?

 

radioshack.... pack of 5 or 6 for $2

-cutts-

 

They've come up a bit then. Last pack I bought was 5 for $1.25. That's about as close to free horsepower as you can get.

 

can someone show me where to put the resistor?