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Rb25Det Cam Case Vent Hose To Intake Reducer?

W0rp3D

By W0rp3D,
in General Maintenance

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W0rp3D Grand Master

W0rp3D

Posted
Posted

In the process of changing turbo's and as i took this line of it broke since it was so old an brittel, however i was surprised to notice that there was a reducer in there which reduced the hose to about 3 or 4mm, is this normal, i deliberately got a 2 in 1 out catch can to maximise the flow (and neaten things up a little) but now it seems if i use 1 line from the rockers and back to the intake it would triple the flow!

So should i use the restrictor with the catch can or maybe just the smaller barbs (was going to replace with bigger ones) to restrict flow back to the intake?

  • 4 weeks later...
scotty nm35 Grand Master

scotty nm35

Posted
Posted

Sounds like it...

I run 1/2 inch (internal) hoses everywhere for my catch, with ss scourer inside the can. I guess you would want more flow not less.

Which end was the restrictor? Can you get a pic?

BOOZTJUNKEY Proficient

BOOZTJUNKEY

Posted
Posted

It's a blowby and oil restrictor it's to stop oil getting into the compressor housing if you run a baffeled catch can than it does not need the restrictor .

Although I have run a catch can that wansnt baffeled without the restrictor and still didn't get oil I'm my housing

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