hey folks. I have been searching but haven’t found what I’m looking for. I want to know the best way to retain the small coolant hoses for the TB and oil cooler when removing the neck and doing a full reroute. I could drill and tap the block off plate for the head but someone mentioned something about the pressure with the reroute might starve the factory oil cooler this way? Any help is appreciated. I know some people delete the lines but I would like to retain the oil cooler and TB coolant function if possible.

 

Turbo? If so, just make the last run go from TB to turbo cooling. If not turbo, run it down to the mixing manifold. Picturing this in my mind and it makes sense.

 

Not turbo, car will be rotrex. So tee time everything into the mixing manifold essentially and don’t jack with tapping the front block off plate?

 

Yes. The only reason to tap into block off plate is if you need the 1.6 fan switch or an aftermarket sensor.

 

Thank y’all. This helps out quite a bit. Ill
have a spare engine to mock everything up and wanted to make sure I did it correct.

 

I also deleted my front water neck and wanted to keep all of the waterlines. So, I tapped a 1/8 npt tee where the barb on the mixing manifold used to be and used that for TB line/Turbo line. Also, you can run the waterline from the throttle body behind the timing cover, and down to the mixing manifold for the cleanest look. Then secure the line with 2 P-clamps bolted into the backside of the stock timing plate.

 

Hell yah. That visual is great. Much obliged my Friend.

 

Wish I had thought of that routing with this last build. oh well.

 

If the water for the throttle body and oil cooler come from the back of the head they must go to the mixing manifold. If they go to the front of the head then there will be no water flow at all. They would be taking water from the head to the head and there is no flow that way.