Dead Turbo? Vid Inside

[dr phil]

Hey I read a Garrett PDF linked from the forced performance website the other day, about water cooling and heatsoak after shutdown. Mentioned that you should have about 20deg tilt on the turbo, and the water lines need to be smoothly running up and down, to encourage water flow after shutdown through the bearing core. I had no idea this was important.

May not be your problem of course. But if oil is not the problem...

[dr phil]

Here's the link http://store.forcedperformance.net/merchant2/graphics/garrett/watercooling.pdf

[Simon-S14]

My Link G4+keeps the waterpump and fans running for a short period after engine shutdown anyway which should rule that out

[jay-rod]

How do you keep a water pump running that is driven by the engine?
Unless you mean the engine is still on?? lol..

I thought turbos cool them selves off using "thermal siphoning"

[GTSBoy]

How do you keep a water pump running that is driven by the engine?

EWP.

[jay-rod]

Well that would make sense!

[Ben C34]

Obviously the turbo is screwed, but how does it feel by hand? Can you tell it is damaged? Just wondering for reference purposes.

Cheers

Ben

[Simon-S14]

Minimal shaft play and bearings feel ok. Not super smooth tho

[methz]

this might sound dumb, but a person I knew killed 2 garrett gt3582rs awhile ago on his rb30, took him until the 3rd turbo to realise, he had plumbed up the water lines incorrect, instead of using the stock in/out on block he choose a different path and it wasn't a circulating path and there for killed them everytime.

[GTScotT]

Am going to take this 20 degree, in and out, business very seriously on my motor... I would be mortified if my GTX axed itself, such an expensive adventure for me.

Simon I think you should trial a hypergear for performance and see what you think. If the performance is up to your standards perhaps give one a go and help support a local business. We all know the customer service and warranty side of HG is incredible, so the change will surely solve your issues as long as the performance is up to par

Edited February 24, 2014 by GTScotT

[tricstar]

What about the tune ?

Once killed a new turbo because the tuna retarded the timing which increased the exhaust temp and cooked the cartridge.

Also if that's the same turbo The turbo falcons run, I had exactly the same sound and had to have one rebuild just recently and was told the bearing cradle is made of plastic and it had disintegrated. He replaced it with a brass one, said he was rebuilding 5-6 every week. Cars only a few years old and was rebuilt 6 months early as well. Seems to me they are a fragile turbo. Maybe time to try a different one.

[Simon-S14]

It's not the tune. Tune is spot on perfect.

Interesting to hear about the bearing cartridges tho

[wolverine]

Pretty sure Fineline had a number of issues with them and swapped to 3240's to get around the plastic bearing cartridges....but the memory isn't what it used to be. A search in this forum should find it.

[Simon-S14]

Does smashing limiter have any affect on turbo life

[tricstar]

Yeah my turbo guy has had the discussion with Garrett but they didn't want to know. So he has his own cradles machined, because he was seeing so many of the same failure. My wife's car ( turbo territory) completely stock is on it's 3rd turbo, with less than 100k on the clock.

Grant @ Per4manz turbos in Perth is my guy.

[GTSBoy]

Does smashing limiter have any affect on turbo life

It might. Ignition cut limiter, whilst being kinder to the engine, does pour a lot of unburnt mixture out into the ex manifold and that stuffs already burning as it leaves the engine. So it will dump a hell of a lot of heat into the turbo. A plastic bearing cage might give up the ghost where a metal one wouldn't. It's a valid theory.

The best part of the theory too is that different days will see you limiter bashing more or less. So you could easily run it a few times and not kill it, then on one given day, bash it a bit harder and goodnight nurse.

[bcozican]

Does smashing limiter have any affect on turbo life

yes and all... but to be honest i smash limiter hard too same as you (and have ignition cut through vipec) and my gtx3076 been going nearly 2 seasons strong

i know you've covered it but just for ref 3 guys did turbo's over here this year ... all 'oil starvation' issues no one could prove it was or not ... garrett no help at all with anyone just said 'setup fault'

Edited February 25, 2014 by bcozican

[Simon-S14]

Class action anyone? Haha

[methz]

kando t67-25g time

[tricstar]

Do they all run the same plastic bearing cradle ? Gt35's and gtx30's ?