Anyone have a dyno chart with the boost bypass? Does it really change? Just curious.

 

The boost "bypass" has nothing to do with the amount of boost. It just stops the computer from killing boost if it sees a failsafe mode.

 

Oh ok, sorry i still havent fully understand the supercharge system. I have usually sticked with N/A engines! But can you explain of the failsafe mode system and wats the point of having it.

 

There are several "failsafes" that if the PCM sees, it will kill boost so that power output will be reduced to lessen the chance of engine failure. These are things like engine overtemp, excessive misfire, etc, etc. However, one of the failsafes, is called brake torque. That's if the PCM sees the brake pedal depressed, at the same time as a high throttle position. Sound familiar? That's a burnout . In the early days, if you did a burnout, and then tried to make a WOT pass, the truck would hit failsafe mode and kill boost.

Most tunes disable the boost solenoid though, so the "kits" are really useless if you have a tune.