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Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

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Old 07-30-2002, 07:39 AM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

hmmm sounds like a good mod but ill have to scratch the greddy emblems off <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> <img border="0" title="" alt="[Razz]" src="gr_tounge.gif" /> . cant let anyone know we actually LEARN things from imports. how long did it take you to install? sounds pretty easy but im not too good with stuff like this.
Old 07-30-2002, 01:21 PM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

Install is super easy guys. Just look at that first pic, that shows everything right there. Everything that I used was included, except for that white piece (right before the inlet to the intake manifold). It's a universal junction piece from Autozone. The actual size is 3/8th if you can't find any univeral ones. That bolt is a stage 8 locking header bolt that I had hanging around. I just lined up everything, drilled a hole in the fender, tapped it with the correct size for the header bolt, and voila. There is weatherstripping that I put all around the front and back to sandwich it between the fender and battery, and to eliminate any banging/rattling. All the lines and the fittings and stuff were included.

I spent about 1 hour on the install, 45 mins of which was trying to decide on a good location. There's a few places you can put it near the passenger headlight but you'd need more tubing and it would be harder to get in/out.

I may relocate mine lower down and hidden more, somewhere up the front of the car (near the windshield washer reservoir). I have it where it is now so I can see it and see if oil is getting through. Doesn't blend in too well though <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Dope
Old 07-30-2002, 01:27 PM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

Oh, thought I might add that the Greddy emblems are etched into the aluminum. You'd have to paint it (which I might do too) or machine the side down <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

I'll also add that I reversed the top. It used to face forward (the spouts on the can itself) so I just took it off (4 allen bolts) and reversed it. The unit can be mounted horizontally or vertically as well, the side glass can switched easily (look at the pic on the side of it).

If you guys can install headers and stuff like that (like Trans Am has) then this will be a cakewalk.

Dope
Old 07-30-2002, 08:21 PM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

Well Dope you sold me on this idea.... Just wondering if you think it will cause problems rather than catching oil? You think this with the updated PCV valve and metco breather (just installed) will stop oil blow by and/or oil burning a little if not completely?
Old 07-31-2002, 10:51 AM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

Do you have a part number for the Greddy setup? Is the can itself baffled do you know?
Looks great and seems to be working well. I am going to pick one up. I drink a lot of oil through the PCV too.
Have you had to empty the can yet?
Cheers,
Chris
Old 07-31-2002, 11:01 AM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

I'm almost sold on the idea too. I am having detonation at high RPMs when WOT. This is clean and nearly hassel free...

Dope, did you have detonation problems before the install? If so did it eliminate it?
Old 07-31-2002, 01:00 PM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Chris ARE 360:
<strong>Do you have a part number for the Greddy setup? Is the can itself baffled do you know?
Looks great and seems to be working well. I am going to pick one up. I drink a lot of oil through the PCV too.
Have you had to empty the can yet?
Cheers,
Chris</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I don't have the part # but it's in one of my prior messages in this thread.

http://www.optauto.com/webstore/prod...k=yes&dept=876

That's it. 9mm (approx 3/8"), not 15mm.

The can is NOT baffled. There is nothing inside the can but emptiness.

I have not had to empty it yet. In fact, there isn't even enough oil in it to register on the sight glass yet. I haven't really done any WOT action yet though (no track time, just commutes and 'spirited driving').

Dope
Old 07-31-2002, 01:02 PM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Rogue:
<strong>I'm almost sold on the idea too. I am having detonation at high RPMs when WOT. This is clean and nearly hassel free...

Dope, did you have detonation problems before the install? If so did it eliminate it?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I had no and have no problems with detonation. I did this just to stop ingesting oil. The intake and back of my TB were lakes of oil. I can't imagine it is particularly good for the engine (or performance) to be burning oil like that.

Dope
Old 07-31-2002, 08:04 PM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

Hey Dope, another question. Would the catch can work with a 98 the same way you hooked it up? Just asking because i know the 98 has a different PCV setup...
Old 07-31-2002, 10:19 PM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

Yeah, it should work the same. You'd just need some more tubing, because if I remember correctly, the 98s have the PCV valve about halfway down the valve cover, not right on the edge (as you can see in my pics). Otherwise they are identical, as far as I know.

Dope
Old 08-01-2002, 12:58 AM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Trans Am:
<strong>Well Dope you sold me on this idea.... Just wondering if you think it will cause problems rather than catching oil? You think this with the updated PCV valve and metco breather (just installed) will stop oil blow by and/or oil burning a little if not completely?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I don't really think it will cause problems at all. It is using the completely stock PCV setup, with just some extra tubing and a catch can between the PCV and the intake. It's now been about a week and that inlet hose is dark oil colored and the outlet (to the intake manifold) is completely clear. Not even a drop of oil I'd say.

With a metco breather you'd be seeing much less PCV airflow which would further decrease chance of getting any oil in the intake. As of right now, my setup has eliminated 100% of oil in the intake (no breather). Time will tell the full story though.

Dope
Old 08-01-2002, 02:52 AM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

So which side of the catch can do i extend to the PCV valve? Outlet or inlet?
Old 08-01-2002, 03:10 AM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

Dope,

I'm very impressed with your set up. Please keep us updated on how this catch can is working for you. I get a lot of oil in my intake and on the back of my TB blade. My PCV system is stock with the exception of that I replaced the stock PCV valve with a GM fitting (GM part# 12572717) that looks just like a factory PCV valve, but it is hollow and has no valve in it. It does not appear to have done anything to solve my oil consumption problem.

Do you think Sumitt or Jegs carries this Greddy piece? What is the part number for the mounting brace?

Thanks for sharing this with everyone.
Old 08-01-2002, 11:03 AM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

ttt
Old 08-01-2002, 01:29 PM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Trans Am:
<strong>So which side of the catch can do i extend to the PCV valve? Outlet or inlet?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">It doesn't matter, there's no inlet or outlet. I should have posted pics of the interior of the can, it is just completely empty. If you route the hose from the PCV to one side, the other side becomes the outlet to the intake manifold. Does not make a difference.

mmiller: I don't think Summit sells them. Greddy is a big import name and I've never heard of any domestic with greddy parts on it (till now, hehe). Do a search on Google.com for 'greddy catch can' and you'll find about 20 million import sites that sell Greddy catch cans or have write-ups, etc.. $83 was the cheapest I found on the link I previously posted in this thread. The bracket is about $5 and it's on the same webpage. Don't know the # off the top of my head.

Dope
Old 08-01-2002, 02:54 PM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

Thanks for the reply Dope. Please keep us posted over the next several weeks as to how this catch performs for you. I want to get an idea how well it works for a couple of people before I order one. I think it's going to work well though.

Correct me if I'm wrong, but this will not eliminate oil consumption, right? It will give the oil sucked up by the PCV system a place to go in the catch can rather than going into the intake, right? Will this or will it not eliminate oil consumption?
Old 08-01-2002, 03:18 PM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by mmiller:
<strong>Correct me if I'm wrong, but this will not eliminate oil consumption, right? It will give the oil sucked up by the PCV system a place to go in the catch can rather than going into the intake, right? Will this or will it not eliminate oil consumption?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I'm a little sketchy on your wordings here, but I think what you're asking is if it will stop the car from losing oil.

It will not. The oil will still be sucked up through the PCV but then dumped into the catch can instead of into the intake. So yes, you will still be 'losing' oil over time. However, this will eliminate 95% or maybe even completely, the CONSUMPTION of oil by the engine. Theoretically you could even empty the catch can back into the oil filler once in a while. Since the system is sealed you shouldn't have any other contaminents in the oil. Only issue with that, I think, would be that you also get moisture (water vapor and stuff) in the PCV. My oil that is collecting kinda looks milky for that reason. I don't mind topping off the oil every few weeks, personally. It doesn't even eat 1 quart between oil changes. As long as the engine doesn't actually burn that oil, I am a MUCH happier man.

As far as actually SOLVING the problem, this does NOT do it. To solve the issue of oil getting through the PCV, the LS6 PCV or maybe a tall valve cover with some kind of special baffling could fix this. However, the LS6 PCV is $$$ and requires block modification. Tall valve covers alone are like $400.

Maybe a solution in my personal future, but for now I can just stick to checking my oil once a month or so, and not worry about gumming up the internals and blowing smoke at WOT (which the car does NOT do anymore).

Dope
Old 08-02-2002, 01:37 PM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

Nice installation, Dope. I've been preaching the Greddy can for some time now, but there seemed to be little interest. I've been running one on my 2000 SS for about a year now and its been working great. Mine is installed in the same location as yours except I have it oriented at an angle. I picked up a few feet of 3/8" fuel line at the local auto parts store and used that instead of the supplied white tubing.
I haven't drained my catchcan since I installed it and after about 4000 miles its got at least 0.25" of oil visible in the sight glass, which is more than I expected. As far as I can tell I have no more problem with oil getting into the intake. I have noticed absolutely no negative effects of having the catchcan installed other than adding a bit of time to the battery removal process. I believe that those folks who have traction control cannot use the location behind the battery, but it should fairly easily fit elsewhere.

EDIT: oh, if someone would be interested in hosting a couple of pics for me I can show you my installation and some pics of the can disassembled...

<small>[ August 02, 2002, 01:38 PM: Message edited by: Fulton 1 ]</small>
Old 08-02-2002, 03:44 PM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

Thanks for the report Fulton. I hope someone can host your pics, I would love to see them.
Old 08-02-2002, 04:30 PM
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Default Re: Is there any actual reason (besides emissions) for the PCV to be a 'sealed' system?

Fulton - email me at dope@twelveinch.com and I will host them for you.

Dope



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