loud noise on wot rapid acceleration

[Sp1kE]

ok so i read all tech articles and such before i modded my car. first, this is what i have done to my car:

apex 3"turbo back.
2g exhaust mani, and o2 both ported and polished
ported and polished 14b a little "tick" of shaft play
hks intake.
all freemods
walbro 190
and boost turned up to 14/15


problem/noise:
when i go WOT for awhile there is the sound of the engine going and hitting max boost and stgeadly accelerating.
then it about a second after, the engine goes louder and rpm's go up faster(more power) as if theres more boost but boost is steady at 14-15psi. the sound happens for about 1.5-2 seconds and stops the loud noise and harder acceleration. goes back to normal
its sorta scary sounding but i can feeel the power.
what is happening?

only thing i can think of is my fuel pump isnt rewired.
so maybe it is leaning out from lack of voltage to pump and the engine is hitting the proper air/fuel mix for that 1 second?

any ideas or has anyone heard of this before?



thanks mike

 

[kspharris]

Have you changed your fuel filter, plugs, plug wires lately? Let us know and we will go from there.

 

[Sp1kE]

i have replaced plugs and wires liek 4 months ago. fuel filter.. no

 

[burtreynolds]

What type of boost gauge are you using?

 

[diablos991]

A logger would be a good idea when upping the boost. And would give more insight to what is happening.

Have you done a boost leak test?

 

[PieEyedPiper]

You must have dat dere VTEC!

Sounds strange that your car just gets faster for 2 seconds and then goes back to normal. At what RPM's does this occur? Is it always at a certain RPM?

 

[Sp1kE]

its usually around 35-45. that it does it
sometimes at higher rpm's.
i had a logger but the battery blew when i plugged the wrong charger into it.
yaaa i got vtech.
only boost leak i may have would be minimal.
i know logs would help.
but i took it to the track did a 13.4 and it never happened. ran it about 8 times.
ohwell im sure i'll figure it out/ fix it over winter

 

[Sp1kE]

Sorry. I am also using a autometre boost gauge

And sorry for not using proper "Puncuation" and not Capatalizing my words correctly in my Post.
I didn't know you are That Strict.