water feed for turbo?
Turbo Mini Forums

Has anyone drawn a diagram of how to connect a water fed turbo to the standard cooling system? If so I would like some help with how you guys have set yours up please :)

Beachgrove Engineering 01525382968 Speak to Alan.

Tel him Josh gave you the number he is very familiar with my mini and is helping with my water system once I get my bits sorted

Own the day

<3 thank you

what I am doing is taking a feed from the drain plug on the bottom of the block near the "OIL" pump, feeding that through the turbo, and then back into a brass union I have soldered to the rad near the filler.

well spotted Colin,

Edited by Joe C on 23rd Oct, 2011.

I've drilled out the coolant bung/plug to accept an 8mm straight brass union>then to the turbo>then returning into a metro thermostat housing [without the sandwich plate]

I've also drilled the pipe out to 6 or 6.5mm to aid the flow

is the water feed to the turbo gravity fed or will it be forced through?

Cheers for replies so far guys :)

edit: by the 'coolant bung/plug' do you mean one of the core plugs?


Cheers

Edited by Craigie-B on 23rd Oct, 2011.

forced, otherwise it'll boil in the turbo.

bingo!

i think i have it wrong then...

here is how i have it

i have no heater, so the heater take off goes to the left side of the inlet manifold with i t piece in-between feeding water to the turbo also.

on the right hand side it goes out the inlet manifold, t-peice to turbo, and then connect to the bottom radiator pipe to the outlet let spout that comes half way up the rad. this is looking from the front of the engine...

is this totally wrong? the grease monkey that did it said that was the correct way. doubt he has a clue though

You are still taking high pressure coolant from the heater circuit and putting it back into a low pressure area of the cooling system. The coolant might not be as cool as it would be if taken from the block, but it's hardly going to be a problem. One thing I wouldn't be too sure about though is if the thermo syphon effect would still work in this set up on heat soak, but there is a slim chance it will.

When you turn off the engine, the heat from the combustion chamber, the exhaust manifold, for example, drains into the rest of the engine. The common term for this is heat soak.

where the turbo is concerned, the turbo core is either cooled solely by the oil flow through it, or, in the case of the GT1752, is cooled by the engine coolant. This is great when the engine is running and coolant is being 'pumped' through the turbo. But when the engine is shut down there is no pressure difference in the coolant to create any flow through the turbo core. The turbo suffers heat soak like the engine and the careful orientation of the coolant inlet and coolant outlet positions can generate a thermo siphon. In simple terms, hot water rises, and hot flows to cold, so as the turbo experiences heat soak, the coolant sitting in it heats up, as it heats up, it starts a dynamic motion of hot coolant rising, drawing in with it cooler coolant, a thermo siphon.

i see what you mean mate... thanks for the info

Can you post pictures?

All good but the system advised for mine is a separate water system with it's own rad and pump this is to minimise the potential for the returning water to rerun as steam.

Own the day

Like I said it was advised for mine.

Own the day

well whoever advised is wrong :)

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

The system described ( drain plug in block to turbo and return from turbo to rad header tank) works fine for me and I have no cooling issues or water loss - ever.

In other words, could I simply replace my current heater with the turbo? So the heater take off goes straight into the turbo and the water outlet of the turbo connects to the hose which would lead the cooled water from the heater back into the engine?

Sorry for thread ressurection,

Just going back to the metro thermostat part -

Do you use both the thermostat and the sandwich plate?
Which part do you attach the water return to?
Putting the water return to the thermostat, wouldnt this mean that your putting the hot water directly into the engine?
I have a tapped hold in the bottom of my radiator with a plastic bung in, should/could i use this instead?

Cheers
Craig

Edit: will i have to buy new water pipes because i read on tmf that metro and mini hoses weremdifferent sizes

Cheers

Edited by Craigie-B on 16th Nov, 2011.