I have searched and read numerous threads that discuss coolant pipes but can't find any definitive yes/no answers.

I have a CA18DET in a kit car (http://www.youtube.com/watch?v=_JudRbZV ... hrNUSlJf1g) - therefore I've slimmed the coolant pipes some-what.

I have no heater matrix, no TB heater, no inlet heater.

My coolant pipes on the block now look like this -



The ONLY other coolant hose is on the end of the inlet which goes to the top of my radiator. The small outlet on the inlet next to this is blocked off.

Two questions please -

1 - Is my current 'layout' OK?
2 - If so, where should I join in my water return from my turbo?

Thanks in advance

In your setup, the only lines you need are the two large hoses for the radiator (the one from the block goes to the bottom of the radiator, the one on the inlet, which we call the thermostat housing, goes to the top of the radiator) and to connect the small line near the big line on the inlet needs to connect down to the small line on the block. Right now you have that line connected with the red that you have drawn on the picture. That doesn't need to be present and both of those lines on the fitting on the block can be capped. This may make this easier to understand;

Everything on #1 can be capped.
Connected #2 and #3 together.

For your setup, you don't need any other lines.

Thanks that's really helpful.

Where should the turbo return go to? I really don't want to delete it as my turbo is close to during anyway.

I completely forgot about the turbo, LOL! Obviously the line on the exhaust side of the block is where coolant comes out of the block and goes into the turbo. Once it passes through the turbo, you need to get it back to #2 somehow. If I were you, I would come off of #2 and go immediately into a tee. Have one side of the tee connect to #3 and the other connect to the turbo coolant line.

That's a great help,thanks - a job for tonight :-)

Glad to help!