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Hey peoples.

I just got my 93 r33 gts-t for chrissy.

Since i got it i have developed a squeel that seems to be coming from the turbo area. It only happens when its on full boost, just past three quarters on the standard boost guage and im revving hard. It also sometimes hits a wall at around 4000 - 5000 rpm like its hit a fuel cut or something, but it only sometimes does this mainly in 2nd and 3rd... I have seen a cloud of black smoke in my mirror once while overtaking doing about 5000 rpm at 120 in 3rd...

Any ideas?

also one more questions, what do mechanics alter when they do a tune on your engine???

Thanks heaps guys

Stu

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STUGTS,

I would suggest getting your car dynoed. For one it sounds like it is running too much boost or has a leak, hence the reason your hitting fuel cut. Secondly the car sounds like it is running way too rich.

A tuner will modify timing, fuel loads, boost etc to make sure that your car is performing at its best. Expect to gain some additional street useable power once the fuel is leaned off.

See'ya:burnout:

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The turbo sqeel could be a leak.

I have seen some turbo's missing a bolt or something on the exhaust flange and air escaping from there at high revs.

Also, the cut out thing that you are talking about..

A lot of R33 owners experience that. I think that it has to do with not enough spark or something.

Do a search on these forums for "Misfire" or "flat spot in high revs" or somehting like that.

It's been discussed many times.

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