I have been running an oil cooled turbo on my 20B for a while and now have got a BB turbo which requires a water feed. Its been so long since I've run the old twin turbos that I cannot remember how the coolant lines were routed.

I have still got the coolant nipple available on the front of the thermostat housing however one of the water lines on the water pump is now too close to the new manifold to use.

I have a coolant nipple on the rear of the engine as well. What are my options?

 

Need pics! What water pump are you running?

 

I'm running the standard Cosmo 20B water pump and standard thermostat housing.

Here is a picture of the first water fitting. I had it threaded so I could block it off when I installed the single turbo, but I am considering using this point as a coolant line...



You can see how close it is to the manifold. I might be able to get a banjo fitting onto the end of it, however there is another water line above it. Can I use a "T" peice for a water line?

The second image...



Shows the line which is currently capped. I *think* that this was the original water feed for the factory turbos but I cannot remember.

Would those two points work?

 

Forgot about this thread..my bad. Use the bottom capped one for the return with some heat shielding. I need to go look at my own setup to make sure about the upper line.