1jz gte turbo water feeds and returns???

[Moffatt]

Hi guys,

Does anyone know which are the feeds and the returns for the water off the turbos?
I run a single and its getting to hot so i've got a mini Radiator to fit on the return from the turbo before going back to the engine.

But i don't know which is feed and return.

2 top nipples (top radiator hose)
1 on waterpump by thermostat
1 on heater matrix tube back of head.

Please guys which is which, i've searched for days :3d_frown:

Cheers John

 

[destrux]

Disconnect the hoses and start the car. You have to open the system to put the radiator in anyway.

FWIW the two hoses that go to the upper radiator neck should be the feed hoses, but I'm not 100% sure.

 

[hvyman]

Shouldn't really matter. The whole system is under the same pressure.

Prolly would want it on the feed side so it cools before it gets to the turbo.

Never seen someone put a cooler for coolant on the turbo before. Oil cooler would help more if don't already have one.

 

[mkiiichip]

If the motor runs hot, there is something wrong.