dead turbo?

[muck]

hey guys,

getting on the on ramp today, i heard a little pop sounded like air escaped, and felt the car go off boost, and thats the end of that.

the exhaust on the car now runs at least 5 times louder.

im not a guru, with anything mechanical with cars, im assuming im dealing with a dead turbo?

and is it safe to drive teh car around? or am i better off not driving it until someone checks it out?

cheers mark.

[d0p3y]

Is there any smoke coming from the exhaust? If so it's probrably turbo. Does it sound like the turbo is very noisy? OIs it no longer boosting at all? If so it sounds like the turbo, or, it could simply be a leak - could be intercooler piping.....

[T0nyGTSt]

Could be a split exhaust manifold. Explains the noise.

T.

[muck]

no theres no smoke comming from the exhaust.

the car sounds fine apart from it being very noisey.

and its not boosting anymore.

intercooler piping seems to be ok.

split exhaust manifold causes no boost also?

[dAVE]

um, im no expert, but could it be that your exhaust wheel has gone bye bye... or would that create smoke?

muck - if it is your turbo and your looking for a new one.. i have a rb25 turbo for sale.. so u can use it as an excuse to upgrade

[Secoh]

I'd definately be taking the turbo off for a visual inspection of the wheels. It may have lost the compressor wheel even.

[muck]

if its lost teh compressor wheel the car, i shouldnt be using the car at all?

[meggala]

I would ge the car checked you can cause lots of damage if you drive it

[whatsisname]

I'd put money on it that your turbochargers exhaust wheel is now somewhere within your exhaust system (lodged in the cat) or possibly gone completely if you don't run a cat?

The much louder exhaust note would be due to the fact there's nothing much left in the path of exhaust gases to quieten it down.

It would take a monumental exhaust manifold leak to lose ALL boost, so you can count that one out. Not to mention the noise from the leak wouldn't sound like any exhaust I've ever heard. I've heard a nasty RB25DET exhaust manifold leak - horrible chuffing/screeching noise

If the shaft/bearing assy is still intact (no reason for it not to be) then you won't see any smoke out the exhaust.

As Secoh mentioned, get it checked asap! If the compressor wheel is unbalanced & has send fragments through the rest of the IC piping (tends to happen if the turbine isn't there anymore) then it won't be good for your IC, & even worse, engine internals!

[Jay95R33]

Yepp,

Exhaust wheel has gone it's own way

How much boost were you running and for how long?

And which model Skyline do you have?

[muck]

exhaust wheel will mean ill need a new turbo?

anyone recommend somewhere in melbourne i can take my car, se suburbs is probably best.

not sure how much boost ive been running.

its a s1 r33

[whatsisname]

Yep Muck. New, rebuilt or replacement turbo.

[muck]

so what do u guys reckon then?

replace the stock turbo, rebuild, high flow, or new turbo.

lets say if i was after 200rwkw what would i be looking to do?