Mainly high revs only, boost above 5psi.. when the cars cold (seems to dissapear when its warm) my car makes a very odd noise which can only be explained as sounding like a high pitched flutter "chichichichichi" coming from the engine, which gets more rapid and louder with higher boost.. i have my pod filter, the AFM, black 90 degree plastic hose, and a metal intake part that the plastic hose grabs onto, the metal part is fairly loose, could this be the problem? far as i've been told i may have a boost leak.. if this is right i should expect a little more power upon getting this pipe tightened up right?

and for those of you who may think i'm stupid (not denying it but..) no its not between gears. its in gear at high revs, high boost.

the pipe being loose won't give u a boost leak, i would say its more lifters ticking when the engine is cold up in the rev range as it dissapears when it gets warm!!

sounds more like umm.. those sprinklers that slowly go around in circles on football fields "CHICHICHICHICHI"

Loose drive belt, especially an alternator belt will make this noise. Spray belt grip on it, or replace it if it's old. To see if it is the problem, spray soapy water on it and see if the noise changes.

how long you warm up? u shouldn't really boost at all when the car is cold. not a healthy process. you can crack **** doing that.

good few minutes, wouldn't a loose drive belt do it in neutral? the car only does it under load at high rpm, only when boosting

Yes a drive belt would make noise in neutral, maybe a little bit different but yeah you would still hear it. A boost leak would be there regardless of engine temp, so I doubt that is the problem. The doctor is right though, don't boost a cold engine.

apparently its a umm.. exhaust to turbo manifold gasket i've been told.. sound right?

Yeah mine used to do it. It was a manifold gasket. Have fun with those exhaust studs! lol.

If it's the manifold to turbo gasket then you might be able to replace it without touching the exhaust studs. I don't know how, but ppl on here say that the turbo can come off without removing the manifold from the head. I couldn't do it, but anyway....

well i'll try just the turbo gasket and the dump pipe flange gasket, that one looks pretty sad, then see how i go..

the only thing that has us stumped, is the car doesn't make any odd noises in neutral at full load, just a slight leak noise, and i can be full boosting the car upto 4000rpm, no noise, its almost like it has to be reving a good 5000rpm at full boost to do it.. except it does it alot more when cold i guess....

take your inlet pipe of the turbo take your exhaust of the housing take of the oil and water lines undo the four bolts drop the tubo out from under the car thats how you take a turbo of yet leave the manifold itself on the motor ive done it about 7 times now

Yeah it's the bit about getting 4 nuts off the manifold/turbo that I had trouble with....my spanner was the wrong shape and my ratchet was too big.

yeah you have to heat up a ring spanner and bend the end of it so you have more clearance to move the spanner around to undo the nuts. or get 3 foot of extensions on a ratchet and go from underneath the car.