Twin troubles

[jwah]

What happens if one of your turbos looses a compressor wheel? After alot of thought, looking for alternative excuses why my GTR could be shown up by a stocko commodore... the noises point to it. i think 1 of my turbos has died. No oil out the exhaust or anything. Just loss of alot of power. Engine still runs fairly fine. the exhaust is definitly not as loud anymore, it used to vibrate my whole shed when i turned it on or had it turning off. Probably a quater bar of boost lost. But the main point VERY slow. Ive pulled all the plumbing off and checked it - no leaks. It has a rattly noise on boost. hmm cant think of much else. so hopefully someone could say yep thats a turbo. If it is a turbo, is it still safe to drive? also is it smart to change both turbos at the same time or just the one broken. Getting new turbos a few months down the track, just gotta save a bit more money. i just need a temporary fix. Well hope someone can help! thanks

[Cubes]

Less noise?? Strange..

Maybe the Cat is stuffed? But then you did say it has a rattle. So ...

Where is the rattle from? turbo's or around the cat area?

[bigcarl]

ive got a set of new garret gt2540 turbos for $3250ono.

[T88 ON BOARD]

If your interested got a pair of standard turbo's From a GTR R33 travelled 30,000km's Let me know via pm

[Jordan]

Take out the Cat, shake it upside down for a bit and see if you can find the compressor wheel in there

[jwah]

Hmm would the compressor wheel reach the cat if i have standard dump pipes? What i figured is that it'd get stuck in the dump pipe restricting air, which would make less noise...? Bit far fetched? Ive been told to take off the dump pipe and check but **** that! only time im doing that is when im changing the turbo. I guess it'd answer my own question wether the turbo is stuffed but meh. Hmm i was hoping this would of happened to someone before so they could tell me what there car did. Taking the cat out would be alot easier, but the rattle has stoped now so who knows what has happened to it. I cant think of any other reason why my car is going so slow. But if anyone else has a theory, feel free to tell me!

About the turbo's im getting a set of 25/30's for a really good price brand new. Its good having friends with a spare parts buisness hooking ya up cost price... too bad he's a rotary man. But thanks for the offers anyway! I'd be looking for a standard gtr turbo, just 1 of though. Just a temporary fix considering the wait for my new turbos.

[55Nat]

The compressor wheel won't get anywere near the cat i think you'r talking about the turbine exhaust wheel, if it was to come flying off the shaft from too much heat which is from too much boost, it would be smashed into many pieces meaning its a possibility that it will be in you'r cat.

If you'r comp wheel was damaged bits and pieces will be in you'r intercooler

Yes you can drive the car but very very slowly, if one of the exhaust wheels has come off but it will be a slug so don't try and bring it onto boost, it also should be blowing heaps of white/blueish smoke. I personally wouldn't drive it until you examine the problem closer.

[jwah]

yeah, my bad, i mean exhaust side. No smoke at all though. It was smoking at one stage, but that was completely fuel. My computer showed the injector duty was at 8% at idle , well wasnt much of an idle. afm problem though. hmmm so with the exhaust part of the turbo smashed off, it'd blow smoke? i dont drive the car hard at all. especially when its f**ked. Im gonna pull the cat off tomorrow and have a look to see whats the go. Hopefully that will tell me somthing!

[55Nat]

Yep it should blow un-normal smoke, see how you go tomorrow.