I have a few thoughts about boost foolers. From what i gather they allow the charger to build more boost and when it builds this boost it alows the pump top keep fueling instead of throughing an over boosting code.

What about on low end, does this tell the computer that you are making a larger amount of boost when your only making very minimal. Reason im asking is to see if this will allow ofr a little bit smokier of a ride out of a 24v.

The truck this would be installed on is a 2002 cummins 24v auto. Edge juice w/attitude. The owner is jealous of my 12 valver and our buddies 12 valvers when we can on demand smoke out the tailgaters...

i know i know smoke doesnt mean power, and our goal is not to black out the city, just to get him to get a decent sized puff with out having to install injectors or a harsher box....

 

from what ive heard and know, and i have the same exact truck, he's got a hy35, which would require a J-hook that attachs on the wastegate arm/mechanism i for lack of better words that he/you can put on yourself. i know that if he had the edge comp, he could disconnect the map sensor on the block, which tricks the computer into thinking its at fuel boost so in effect will do full fuel at take off, giving him some smoke!

 

also, the 02's and maybe the 01's, not sure about the 01's, have the low fuel that the computer does to keep from melting transmissions/ driveline at take off. you can tell this by putting the truck in drive and slam the go pedal to the floor, and the truck will fuel kinda weak/ stumble a little. its the best way i can describe it. others that know more than me will chime in hopefully. hope it helps.

 

As far as I know the edge juice with attitude which you said he has, does boost fooling, but I dont have one so I can't say for sure

 

enterprise engine performance said the same thing

 

Back in the old days, before wiretap boxes and big injectors became available, 1998, there were no boost foolers. At that time I was running the Bosch 275 HP injectors and the original Van Aakin box with no boost fooler. The ECM would defule at boost levels around 22 PSI on my SO engine. The ECM uses the MAP sensor reading to determine how much fuel to inject and at low boost it seemed to be the dominant factor, probably an EPA thing.

The MAP sensor will put out a voltage that is proportional to the manifold pressure. A simple boost fooler will limit the maximum voltage the ECM will see to an “OK” level but the voltage will still follow the pressure as it does with no fooler.

I built my own boost fooler using an amplifier to change the slop of the MAP signal so it started at the same zero pressure level but increased faster as the pressure rises. This told the ECM more boost was available and it fueled harder and made more soot but power increase was not much. It also clipped the maximum signal voltage to stop the defueling. I ended up changing the circuit to only clip the voltage and got rid of the amplifier. It just wasn’t worth having the smoke with no power gain. But if it’s low boost smoke you are after try unplugging the MAP.

 

thtll throw a code though wont it...

 

at it the best way to j- hook the wastegate on an hy35