whu whu whu sound

[poppy1440]

Hello,  If I am driving at a steady speed and give the car about 20% more gas like to pass someone or accelerate moderately the car feels like it is between boost and no boost.  If I give it heavy or light throttle this doesn't happen.  This only happens during moderate acceleration.  The car makes a sound like when you are accelerating hard and let off. ( The horse sound everyone talks about)  Its like the boost is kicking in and out. 
I can make the car do this at will by giving it just the right amount of throttle.  It is like there is a certain point when there is a dead spot or something.  I know this is confusing but this is the best I can explain.    I've set the scan master on different settings like: rpm,tps etc and didn't notice anything like a jump or dead spot.
 
I do have Powerlogger if ya'll think a log may help.
 
Thanks

[TURBOPOWERED68]

i also get that
on my car it feels like boost surge.

[Steve Wood]

compressor surge=larger ic and a 44 and 49 will often do that

[poppy1440]

Thanks,  I guess I'm just so use to something being wrong with my car that when there is nothong wrong I try to find something.
 

[Steve Wood]

been there, done that, more than once...