Hilton stage 2 tune sometimes blows breather off valve cover
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    1. #1
      Junior Member
      Join Date
      May 2009

      Hilton stage 2 tune sometimes blows breather off valve cover

      Just as the title states. Its not all the time, but on the way home I gave it the beans and it felt a bit quicker than usual and I came home and popped the hood and *bam* the breaker hose is popped off. Pcv system is new, port in oil pan and cylinder block is clean. Just got Vida today, anything I should look at? Anything I can do to keep the hose on there? I was thinking of getting creative with a grinder or dremel, i noticed the "nipple" is kinda tapered, so it just pops on and off, if you keep tightening the hose clamp on there, it can either tear the hose itself or just inches its way up the nipple. I guess i'll give it a shot tomorrow. I dont notice any blowby at idle (leaving the oil cap off and seeing if it creates pressure)
      Last edited by nextproject; 09-11-2020 at 10:17 PM.

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    3. #2
      Member Body Massage's Avatar
      Join Date
      Aug 2008
      Bellingham, MA
      Two things

      Are you missing the clamp on that hose?

      When was the last time the PCV was serviced?
      2005 V70R

      2010 C30 R-Design

    4. #3
      Junior Member
      Join Date
      May 2009
      Yes, there is a clamp there. PCV was serviced less than 10k ago with IPDs "full kit". I made sure to remove the oil pan and clean the passages also. I just removed the PTC and its completely clear so i took it upon myself to enlarge the orifice from 6.75mm to 8mm in hopes that may alleviate any pressure buildup. I am also running a baffled mishimoto catch can. Checked the catch can after reassembly and theres only a minimal amount of oil in there. We shall see.
      Last edited by nextproject; 09-12-2020 at 05:50 PM.

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