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Rb25 Freddy Intake Turbo Coolant Return Line Two Options Here

killa-watt

By killa-watt,
in Engines & Forced Induction

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killa-watt Apprentice

killa-watt

Posted
Posted

So i removed a freddy intake from one rb25 and the coolant return line was like so

post-38428-0-55365600-1449548113_thumb.jpg

post-38428-0-33443300-1449548128_thumb.jpg

Then I installed this plenum to another Rb25 and changed it to this setup

post-38428-0-48763000-1449548168_thumb.jpg

post-38428-0-89874000-1449548185_thumb.jpg

Which one of these is the correct way, I didn't think it would matter but I'm pretty sure I've just blown the seals on my turbo in a car that has only been started maybe 20 times in the shed and the turbo blew no smoke at all before this. The turbo is used and there is a slight chance it has just decided to call it quits but this is the only thing I've changed any thoughts ...

Gcjosh Community Regular

Gcjosh

Posted
Posted (edited)

Bottom pic is correct, if the turbo is water cooler that top picture where it is blocked is the turbo water return.

The turbo could be blowing smoke for a few reasons and I'm not 100% sure but I find it hard to believe the lack of water would mess up your seals if you've only started it in the shed as you say.

The new rb you put the manifold on, how is the oil setup going to and from the turbo?

Edited by Gcjosh
Gcjosh Community Regular

Gcjosh

Posted
Posted

Top pics have water return blocked off.

What makes you think the turbo is blowing smoke and not the motor?

Have you connected your valve cover breathers correctly?

Iirc if it's not it can cause pressure and in turn cause smoke (this is a memory from a long time ago though, hopefully someone can confirm or dismiss this)

killa-watt Apprentice

killa-watt

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Yeah it will pressurize the sump and push oil up through the turbo drain, past the seals and smoke. Think I've got the turbo sorted but was wanting to confirm this water return question. There are no pics on the web that I can find that show water flow direction through the rb. Was wondering what would happen if two paths of coolant were flowing at each other.

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