they are not coming up as new messages for me, I only find out about any I have when I get an email to notify me

Engine will be out pretty soon, so I'll be giving it a basic strip down just to confirm no damage and find out what parts went into the build (the only thing the prev owner was certain of was that genuine new pistons were bought from Holden). If all works out I'll probably source a rollerbeaeing ver...

yeah, well I bought the car at a bargain price, with the intent of salvaging the entire suspension, steering, wiring, gearbox, and the engine and turbo were a bonus. The engine certainly sounded healthy and felt fine for 2 min of driving on and off the trailer, turbo I knew had troubles when I bough...

hmm, could well have been a poorly put together turbo, since whatever work was done to it 3000km ago was done by a general mechanic as far as I can tell.

I imagine there isn't, being a roller bearing turbo they have far greater flexibility in their oil pressure range. Since I am not looking for big HP (MAX 10 lbs boost - need reliability more then power) I am looking at buying a standard t28 roller bearing turbo so that I can re-use all my plumbing (...

Thanks. Yes, I've actually printed the manual, slowly working through it. I have a feeling that if the reducer is missing ( I don't know what to look for, but it appears the oil line runs direct from the block on quick inspection), I imagine this is simply due to the fact that the turbo was plumbed ...

Thanks. I'm on a steep learning curve, used to cars built well before computers were fitted to them. If the piazza is running at 57psi oil pressure at 1400rpm, what is it at max revvs?

IZU069 wrote:If it's only supposed to get ~45psi and there is no regulator, then you have your problem.
The airbox electrics is merely airflow for the fuel delivery.

That's aboutwhat I figured. If the wiring has been played with could that be partially closed and restricting airflow?

I've been doing some more reading, sounds like ballbearing turbos like this one can be damaged if they are outside their operating range of 40 to 45psi, so it seems possible that a restricted should have been fitted and wasn't. I also discovered that the controller fitted was for a different model. ...

bearings and seals. damage is similar to if there was a blockage in the oil return, but oil return is fine. taking a look through the receipts this engine has been trouble since the previous owner purchased it.

Quote was from a local turbo specialist, who has been fairly good and honest about everything. the main damage was the ball bearings and seals from what he said. he suggested that it could have been caused by excessive pressure from the sump feeding into the turbo.

Just gotten a $1000 quote for the rebuild of my Garrett M24 A/T6.0 turbo for the Piazza, supposedly part of the reason for the failure is likely to be highly excessive crank-case oil pressure pumping WAY too much at the turbo. Just wondering what the common reasons could be for this? The engine is o...