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Turbo Oil Feed Starvation

D-limo

By D-limo,
in Engines & Forced Induction

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D-limo Veteran

D-limo

Posted
Posted (edited)

Ok so I bought my car knowing the engine was run without oil to the point of the exhaust cam seizing. This was the result after an aftermarket oil hose fitting un-screwed itself.

After some good advice from some members on here I have decided to ditch the old engine for a possible rebuild down the track... Will also come in handy for spares.

My question is this- For the amount of time the engine was run with no oil (presumably with some boosting?)

Is there any chance there would be some minor damage made to the turbo bearing?

Turbo in question is an HKS T04e

Also could anyone help with the hp rating of my turbo? Only numbers I can see is .50 wich is the A/R of the front cover yes?

Every other T04e I have seen for RB20/25 has either the .56 or .60 front cover.. Is my turbo designed for slightly quicker spooling compared these, While sacrificing on overall power?

Edited by Drift_Limo
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Sydneykid Grand Master

Sydneykid

Posted
Posted

You have asked 2 questions;

1. Is the turbo damaged? No idea, no way to tell, waste of time guessing. Take it to turbo workshop and have it checked.

2. HKS don’t publish compressor maps. Last time I bothered looking, there were 6 or 7 specifications of Garrett “T04E”. Outputs ranging from 350 bhp to around 500 bhp, so take your pick.

:ermm: cheers :(

Adriano Grand Master

Adriano

Posted
Posted

I would guess that if the turbo was being boosted without oil long enough for the engine to run out of oil and seize the camshaft, the turbo will be shagged, and thet may be the least of your problems, for the $150 or so, i would rip the sump off and have a quick look at the bearings

Suggest you locate the CHRA ID tag number, and post up that, along with any numbers off the housings.

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