exactly by pass valve does not control boost only excess boost in the intake tract it "by passes" it away from the turbo and closed throttle plates. a boost controller incrementally increases boost. any wastegate wether on a fi or carb car can be controlled manually
not all calibrations are set exactly at a certain boost level. the one currently in my car is set for low boost of 18(i can run down as low as i want) with spark and fuel tables to 29 turn the knob and away we go BUT i still need to pay attention to the gauges. i am not saying i am making the most power possible either without data logging and adjusting the tables but they are pretty spot on. lane changes with the throttle always scares oncoming traffic hahahahahaha
Norm
