Boost fade

[Pushit2.0]

Most side to side FMIC will produce 1-2 psi pressure drop. The turbo spits out hot air then you cool that air off and it becomes more dense, thus would have less pressure, or atleast thats my take on it.

~John

[asshanson]

Alright, here is a more complete list of mods:

crushed 1g BOV (didn't leak up to 20 lbs in my tests, i went to 25 lbs could only hear the BOV hissing)
650 injectors
190 walbro fuel pump
Greddy 24R FMIC kit and the few pipes it comes with to hook up to stock piping
Dejon intake and upper intercooler pipes (2.25" I think)
Ractive (?) air filter
17 lb actuator from FP, not the 11lb it came with. I thought this was the issue originally and it didn't help much.

Relevant Stock parts:

lower intercooler braided hose
braided hose from BOV to TB elbow

[FattyBoomBatty]

Originally Posted by Pushit2.0

Most side to side FMIC will produce 1-2 psi pressure drop. The turbo spits out hot air then you cool that air off and it becomes more dense, thus would have less pressure, or atleast thats my take on it.

~John

No, that's physics.

And, Kracka - sounds to me like he lowered it one full turn, then back up two full turns, so it was only one turn above where he had it before.

Bad boost controller. My friend and I were dynoing his stock turbo'd conquest at MAP and they let us use a manualk boost contorller they had sitting around, it would do the same thing, boost up to 15 psi then fall quickly to wastegate pressure.