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Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

Valve cover question.

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Old 03-22-2007, 09:40 AM
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Default Valve cover question.

Should the valve cover area be completely sealed? its on a d-series. Or will having 2 open ports in the front lower the oil pressure and cause a vac leak? Im looking to vent more crank pressure.
Old 03-22-2007, 09:44 AM
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lol start the drill!
Old 03-22-2007, 11:13 AM
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Default Re: (95hatchcivic)

oh the drill has been started, however im scuurred about oil pressure loss, and other stuff being sucked into the VC, since there is no factory baffle.
Old 03-22-2007, 11:56 AM
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Default Re: (YoungKadafi)

dude that is gonna bump your redline up to like 11,000 rpm and give you like 32 whp....i would totally suggest it!
Old 03-22-2007, 12:05 PM
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you should be quiet, its not for performance but more for reliability, since if you search the more ventalation the better.
Old 03-22-2007, 12:10 PM
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Default Re: (YoungKadafi)

Oh, nevermind Let me keep out of this. I missunderstood entirely what he was saying.

Reading > me


Modified by ek forever guy at 1:31 PM 3/22/2007


Modified by ek forever guy at 1:32 PM 3/22/2007
Old 03-22-2007, 12:23 PM
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Default Re: (ek forever guy)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ek forever guy &raquo;</TD></TR><TR><TD CLASS="quote">well, adding ventilation to the head will create a vacuum leak. I'm not picturing how this would make it more reliable. Or maybe I'm just not understanding what you're saying.

To me, it sounds like you want to drill a whole in the head somewhere.

</TD></TR></TABLE>

what are you talking about? adding ventilation to the head will create a vacuum leak? 3 words - OIL CATCH CAN
Old 03-22-2007, 12:26 PM
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Default Re: (robble36)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by robble36 &raquo;</TD></TR><TR><TD CLASS="quote">

what are you talking about? adding ventilation to the head will create a vacuum leak? 3 words - OIL CATCH CAN</TD></TR></TABLE>

Oil catch cans go in the factory PCV location...the OP is talking about adding more holes to the VC to get better ventilation, not simply adding a breather or catch can.
Old 03-22-2007, 12:34 PM
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lots of people do this

Having holes in the valve cover will not create a vacuum leak anymore than removing your oil cap while the car is running (try it...nothing happens).
....or breather vent @ the intake.
Wont lower oil pressure either.
Old 03-22-2007, 12:38 PM
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Default Re: (YoungKadafi)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pdiggitydogg &raquo;</TD></TR><TR><TD CLASS="quote">lots of people do this

Having holes in the valve cover will not create a vacuum leak anymore than removing your oil cap while the car is running (try it...nothing happens).
....or breather vent @ the intake.
Wont lower oil pressure either.</TD></TR></TABLE>

I was just going to say this...
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