is my boost guage crazy?

[mitsugsx95]

I had a question about the psi at WOT. When is it suppost to hit the
peak psi in the RPM range? How long should it take?I just installed my MBC and i am still screwing around w/ it to get it rite. But every time I set it its wrong.
A. While going from 1st into 2nd and then 3rd, it slowly climbs up to
15 psi and holds. (ok by me)
B. Wile going 60 MPH, drop it into 3rd and then I hit 16-17 psi steady.(what the @$%# is going on)
Can someone help me out.

 

[98TsiAWD]

Originally posted by mitsugsx95
I had a question about the psi at WOT. When is it suppost to hit the
peak psi in the RPM range? How long should it take?I just installed my MBC and i am still screwing around w/ it to get it rite. But every time I set it its wrong.
A. While going from 1st into 2nd and then 3rd, it slowly climbs up to
15 psi and holds. (ok by me)
B. Wile going 60 MPH, drop it into 3rd and then I hit 16-17 psi steady.(what the @$%# is going on)
Can someone help me out.

Boost creep and/or spiking. What kind of MBC do you have, it could be spiking (the longer your vac. lines on it the worst it gets, keep the lines as short as possible). Boost creep would be caused by your o2 housing most likely, either replace it or port it.