Rear Turbo Coolant Pipes Routing

[SwankBaton]

Hi All,
I've had the coolant pipes off to replace - Im not sure which outlet from turbo (Top / Bottom) the pipes go to?
I've got a 3 way T piece or the 4 way block below the header tank to plumb them into.

I assume it matters!
Cheers
Al

[StreetDragster]

It doesn't matter

Thanks
Matt

[doug_porsche]

In the US build manual, and how I did mine earlier this month, it says to go from the line that comes from the tunnel, to the lower inlet on the turbos, then from the upper side of the turbos to the line that runs to the coolant fill tank.

Basically want to pull from the large supply of cooler water coming from the radiator, and let the heat/convection do its thing and push the hot water to the coolant fill tank.

[Blu3R]

doug_porsche said:

In the US build manual, and how I did mine earlier this month, it says to go from the line that comes from the tunnel, to the lower inlet on the turbos, then from the upper side of the turbos to the line that runs to the coolant fill tank.

Basically want to pull from the large supply of cooler water coming from the radiator, and let the heat/convection do its thing and push the hot water to the coolant fill tank.

^^^ Yep, that's it and yes it does matter. When you shut off, the coolant boils in the turbos and you want that steam to be carried away back to the header tank.

[StreetDragster]

The route through the turbo is the same, doesn't matter which pipe is connected to what.

[Driven]

StreetDragster said:

The route through the turbo is the same, doesn't matter which pipe is connected to what.

It won't matter if the turbo is going to be routed to offset the hot/cold side of coolant.
But, it does matter if you're trying to reconnect the lines so they go the right way.

Per Garrett:
https://www.turbobygarrett.com/turbobygarrett/oil_...

[StreetDragster]

Fair enough
Matt