Loss Of Boost = Blown Turbo?

[MrStabby]

Symptoms;

- giving it stick at the track

- suddenly no power (didnt hear a bang), notice its not generating any boost

- notice one of the in-line air filters (well thats what they look like) on the boost contoller tubing has split apart, so replace it with a piece of tube, still no boost

- check all visible turbo/plenum tubing

- pull front bar to check intercooler piping and cant find anything blown off (only 13 psi after all)

- if i let the throttle snap shut it stalls

- a little bit of oil smoke if i take it to where it would usually boost.... but with vacuum, no smoke

[R31Nismoid]

So no boost, and no I/C leaks...

Have you pulled off the intake pipes to see if comp wheels are still there and/or shaft moving around?

Often when the rear wheel lets go the front one either gets some play or gets minced on the comp housing

Sounds like a turbo though. Probably the rear one

But then 13psi on ~18-20yr old turbos will kinda do that when @ the track and the heat associated...

I pray its not a turbo though mate, because that can all too often involve a damaged piston or two

[MrStabby]

So, first thing is check the cat to see if there are any turbine pieces in there, and if so then check the compressors to see if there's any damage. If the compressors are in tact then the motor should be ok - right?

[tacker]

i think ceramic dust from the exhaust wheel can do damage too i am afraid.

[Swiper the Fox]

i have a set of r34 turbo's in mint condition if required...it sounds like a turbo has gone bye-bye.

[tacker]

leak down test will tell you if there is damage

[MrStabby]

i have a set of r34 turbo's in mint condition if required...it sounds like a turbo has gone bye-bye.

I'll either put the highflows i already have on, or sell them and get dash 9s... no more ceramics!

But, if the motors stuffed do you do 26/30s (after the obligatory forklift joke :-)? Any more expensive than a plain 26?

[tacker]

Looking at a 26/30 myself

[Mr Cali]

Sounds exactly like mine a month ago, exhaust wheel shattered ended up in the cat. Bel Garage who replaced it said that there's a 90% that when this happens it usually always goes straight to ur cat and doesn't enter ur engine.

Is your engine running fine, idles smooth etc just no boost? if so I wouldnt worry. and use this opportunity to go steel wheels for sure

[ThirtyThree]

sounds similar to a mate of mine - ended up just being some blow seals on the turbo

dont get carried away just start little then work your way up to the worst case

[Swiper the Fox]

I'll either put the highflows i already have on, or sell them and get dash 9s... no more ceramics!

But, if the motors stuffed do you do 26/30s (after the obligatory forklift joke :-)? Any more expensive than a plain 26?

ill build anything...as long as the money's right. I actually like the RB30's...they fetch good cash at Simsmetal for scrap.

[MrStabby]

Dr Turbinestone I presume??

FWIW the engine seems to be running fine....all the way from Goulburn to Sydney...

[Swiper the Fox]

looks like the reminants of a turbine gone bye bye.

[R.3.2.G.T.R]

Sounds exactly like mine a month ago, exhaust wheel shattered ended up in the cat. Bel Garage who replaced it said that there's a 90% that when this happens it usually always goes straight to ur cat and doesn't enter ur engine.

Is your engine running fine, idles smooth etc just no boost? if so I wouldnt worry. and use this opportunity to go steel wheels for sure

did they do a leakdown test on your engine??

Dr Turbinestone I presume??

FWIW the engine seems to be running fine....all the way from Goulburn to Sydney...

that sucks, at least u know the cause, do a leakdown all the same for peace of mind