Coolant hoses to turbo - Thermo Siphon

[MrOizo]

I'm getting ready to finish the coolant lines to the turbo.

A members setup from SF-AU


Using Garrett recommendations:

The layout of the pipes should minimize peaks and troughs with the (cool) water inlet on the low side. To help this along, it is advantageous to tilt the turbocharger about 25° about the axis of shaft rotation.

If looking at this pic of his coolant lines, and according to Garrett recommendations, if i clock the core the 25deg (anticlockwise looking from the front):
- the coolant higher side (turbo outlet/hot) will go into the colant system before the radiator
- the lower side (turbo inlet/cold) will go into the coolant sustem after the radiator.

Have i got this right or am i completely wrong?

Cheers.

[Malcolm]

cold side should go into the cooling system after the water pump, otherwise your turbo becomes a radiator bypass

[Akane]

I'll rather risk the very so slight chance that you'll get an air-lock than rotate it to any degree except +/- 5 degrees from dead top center for the oil feed and screw your bearings.

[MrOizo]

Ok my head hurts! haha

The water entering the radiator is hot, and thats ideally where the outlet of the turbo should go right? but only if the inlet has a higher pressure than the outlet.

I guess if the right hose in the pic was the outlet it wouldnt mean much if i didnt know if it was before or after the pump?

[MrOizo]

I'll rather risk the very so slight chance that you'll get an air-lock than rotate it to any degree except +/- 5 degrees from dead top center for the oil feed and screw your bearings.

Whoooaaaa! Dont like the sound of that. Why/how would it screw the bearings?

[Akane]

The specs of a TD06 was +/- 15 degrees from top for oil feed, I didn't know that (was young and stupid) when anthonym sold me the turbo i left it at around 30 degrees, and it rooted the bearings in no time, something about the oil drip can't reach the bearing shaft or something, not exactly sure but I think Garrett recommends +/- 15 degress too.

you better check.

My GT28RS is not watercooled at all, mucho thrashing (was glowing nice and red on exhaust housing), alltech looked at it when I rebuilt it, they said the bearings was minto.

[MrOizo]

Ahhh ok then.. Well according to this:

The layout of the pipes should minimize peaks and troughs with the (cool) water inlet on the low side. To help this along, it is advantageous to tilt the turbocharger about 25° about the axis of shaft rotation.

25° is all good. Hope its good - getting sick of setting and resetting the tilt

[KinLoud]

Adrian. There are 2 tilts to think about...
Water about the shaft axis
Oil 90degrees to shaft axis

So you can easily meet both requirements

Still looking for a pressure cooker! LOL

Ken