Rb26 Turbo Upgrade, Water Lines Help!

[rb26 r33]

hey everyone, I have upgraded my stock turbo setup on my rb26 and now the stock water lines don't match up and I need to get custom lines made. My question is what is the best way to do this? On the 26 the water lines go from the front of the engine to the rear and the turbos are teed into that line, can I just run a line from the front split it into two and delete the rear return and just return all the water threw the turbo returns.

I like to keep things how they where designed but it will look messy and cost a fortune for all the fittings if I retain the top return pipe that doesn't look that important.

if use can not understand what I mean I will get a photo to help explain. thanks for your time

[scotty nm35]

Can't you just bolt the stock oil/water adapters to the bottom of the new turbo's?

[R32N00B]

you still need to run both the water lines front and back to a T and the other side to the block.

I tried running just the line from the back of the engine under the plenum and the block to my single but it didnt promote good coolant flow and made it difficult to bleed out air. I than added a T to the front on the upper water neck and it worked out much better.

[tricstar]

yeah keep it as factory as possible.. and remember its designed to thermal syphon when switched off. if its not done right the coolant won't flow and draw the heat away after its turned off.

[Blackkers]

What's this thermal syphon business?

Someone told me that when you turn the engine off the coolant keeps running through the turbos for a while but I was like yeah bullshit the waterpump doesn't magically keep spinning

[GTSBoy]

Thermosyphon is actually a very easy to understand concept. In any fluid volume if you add heat to the fluid somewhere then its temperature will increase. Fluid at higher temperature is ALWAYS at a lower density than fluid at a colder temperature. Bouyancy forces then cause the hot fluid to rise. This is called free convection, and is a fundamental basis of how many things work. Things such as underfloor heating, the weather systems of planet Earth, etc etc.

If the fluid is in some sort of pipe (like the pipe running to and from a turbo's core) then the fluid will heat up in the core, rise, flowing out of the top outlet of the core. Because the fluid cannot leave a vacuum behind it, it will pull more fluid up the pipe into the bottom inlet of the core. This is the thermosyphon. This is a pumping effect run purely by heat transfer and bouyancy. And it works. Unless you get the surfaces so hot that the fluid boils, which can severely break the effect.