Question about boost dump/bypass...
Senior Member
Joined: Jan 2000
Posts: 1,300
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From: Sugar Land, Texas
It's contolled by the amount of vacume the motor produces. At idle's there's quite a bit of vacume which will open it up and dump excess air. At WOT, there is very little vacume which keep it closed allowing the boost to go into the motor, untill you let off and there is vacume again and dumps the boost.
Senior Member
Joined: Oct 2000
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From: 5 minutes from the fastest track in Texas
It's more or less on and off and is only activated as a fail safe under certain conditions that could be harmful to the engine. So there isn't much of a chance it will open at idle.
And it will still open under full throttle. I've had it dump at full throttle a few times at the track and there was no doubt what it was.
Even though it is vacuum operated, the actual signal to dump is an electronic signal from the computer. The most common (not necessarily the best) way of disabling it is to unplug the solenoid that actuates it.
And it will still open under full throttle. I've had it dump at full throttle a few times at the track and there was no doubt what it was.
Even though it is vacuum operated, the actual signal to dump is an electronic signal from the computer. The most common (not necessarily the best) way of disabling it is to unplug the solenoid that actuates it.