R33 Gtst Boost Prob

[hanyou]

hey guys, helping a mate out his got a r33 s2 gtst.

now he was driving after installing a fmic, had to reconnect his Boost tee peice. as well (he used the vaccum off the plenum to the bov to compensate the stock cooler pipes vaccum nipple)

now his boost was kinda farked already, it was already running free boost. but when he was testing it out he turned on the boost and it made liek a whistle pop noise and then now his not making anymore boost. when u try to get into boost it makes a high pitched whistling noise as well. but nothing is leaking and the car isnt blowing any smoke & it idles fine.

ive checked his cooler pipes their all tight. is my thinking right that his popped a turbo? were gna take his dump pipe off tomo and check the wheel.

thanks, any help is greatly appreciated

[SECURITY]

check the silicon hoses for any cracks in them. you may not notice it till you're actually on boost so get him to rev it for a little bit while you're trying to find the noise (the high pitches noise could be air escaping through a tight crack in one of these hoses).

[hanyou]

thanks champ will do. i think it would be a good idea to replace all vaccums?.

so u think the turbo and that is fine?

[SECURITY]

i doubt anything happened to the turbo. a blown turbo wont make a pop noise, its usually a hose that cracks/disconnects that makes the pop noise.

replacing vacuum hoses is up to you, if you feel the vac hoses around your engine bay and some are starting to get hard or there have obvious cracks then id start replacing them, otherwise just leave them as is. you'd still make boost if one of your vacuum hoses are leaking/disconnected, so i doubt it would be tied to the problem you've described.

[hanyou]

ok we've put back the stock cooler.. runs abit better but still has a gay idle, when it goes to 3000rpm it makes a squeeling niose, still doesnt generate boost though. and sometimes it revs on its on upto 4000rpm??

[SECURITY]

ahh! a squeel noise isnt good!

definatly check the turbo for bearing faulure.

[hanyou]

ok pulled out the turbo last night, the inlet wheel of the turbo was gone lol.. found plastic peices in there though??

[MANWHORE]

Oh, plastic pieces, that's because the sII turbo has a plastic compressor wheel. When you call me later, I've got better ones that won't do that.