Boost falls after brake boost

[95dodgeavenger]

well i got my noise figured out.. the tinking was so much of a ticking

im a noob i know it was exsahust manifold leak..



anywho..
driving the car tonight after changing all fluid new gas and everything.


i decided to brake boost off the line.. (im auto)


and it built high boost and then when i let off the boost droped then spiked again but it took a few seconds.. how could i make it so it held boost the whole time? im stock btw

 

[fastalon82]

when you let off the gas the intake manifold pressure drops which causes a vacuum in the hose going to the blow off valve, which causes it to open which is what its supposed to do. If youre wanting it to stay under boost all the time you'll blow your shit up.

 

[95dodgeavenger]

ah sorry was not clear in my post.. when i let off the brake to start moving and WOT the car boost droped then startecd cliaming again..


so Brake + GAs



Full boost


Let off brake while still WOT

Boost drops then goes up...