Sr20det Turbo Not Getting Coolant?

Hows it going fellas!

Wondering if someone here can shed some light on something for me:

I just got my S13 SR20DET running in my Datsun project, everything seems to be going well, got it up to operating temperature (around 180-190 degrees C or so?) and decided to make sure that the turbo was getting coolant fed to it.

Good thing I checked, cause it's bone dry in there!!

It's a top mounted stock T25 turbo, with aftermarket coolant lines running to the stock locations... I pulled the lines off and there is coolant in them at the level of the radiator, it's just not being fed into the turbo for some reason.

It's also an after market radiator... perhaps the problem is that the turbo inlet/outlet are sitting slightly higher than the radiator and the engine coolant outlet?

I can't see how that would matter, because I would assume that the coolant being pumped through the system would also get pumped through the line into the turbo, regardless of how high it is mounted.

Any help is greatly appreciated!
Cheers!

air bubble? you try "burping" the system?

A great tool to force an air bubble out is a cooling system pressure tested. This tool would allow you to pressurise the cooling system while possibly forcing the air into the radiator. Or you could topp off the system, put the cap on, and fill the remainder of the system at the line fitting of the turbo. Being the highest location of the cooling system, this should force the air out as you fill it.

For flow you will need a supply from the 'pressure' side of the water pump and a return to the lower rad inlet. How is yours connected?