Post up pics of your engine bay - Page 491 - Dodge SRT Forum
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post #7351 of 7361 (permalink) Old 11-30-2016, 11:41 AM
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Reviving an old thread.. but I put in a Killer Glass tube recently, and wanted to show it off.
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locadio and SER-ious like this.
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post #7352 of 7361 (permalink) Old 11-30-2016, 11:57 AM
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Reviving an old thread.. but I put in a Killer Glass tube recently, and wanted to show it off.
That's a great show piece. Is it polycarbonate/plexiglass? I would hope so, I'd be paranoid about it breaking if not.

Also, are you aware that your valve cover breather is not under vacuum?
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post #7353 of 7361 (permalink) Old 11-30-2016, 12:08 PM
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That's a great show piece. Is it polycarbonate/plexiglass? I would hope so, I'd be paranoid about it breaking if not.

Also, are you aware that your valve cover breather is not under vacuum?
It's tempered glass and very thick. Very very sturdy.

The right side is not under vacuum, correct. It can either be plumbed into the intake or vent directly to atmosphere. The left side coming off the PCV valve runs through a catch can and a check valve, then into the intake manifold.
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post #7354 of 7361 (permalink) Old 11-30-2016, 12:23 PM
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It's tempered glass and very thick. Very very sturdy.

The right side is not under vacuum, correct. It can either be plumbed into the intake or vent directly to atmosphere. The left side coming off the PCV valve runs through a catch can and a check valve, then into the intake manifold.
Hrm. Just found this: Thes engines need vacuum all of the time...

Interesting. There's so many people saying venting to atmosphere is fine, but DCR is saying it needs vacuum. Well, this probably isn't the best thread to continue this conversation but anyone who sees it should definitely research what DCR said.
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post #7355 of 7361 (permalink) Old 11-30-2016, 12:36 PM
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It's tempered glass and very thick. Very very sturdy.
Nice.


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It can either be plumbed into the intake or vent directly to atmosphere.
I know lots of people have done this in the past, myself included, but wasn't this determined to be incorrect? The engine must be under vacuum at all times. Out of boost, the manifold pulls through the PCV to maintain negative pressure. Under boost, the manifold has positive pressure, so the vacuum must come from somewhere else. That somewhere else is the port on the driver's side valve cover, which is connected to the stock airbox or aftermarket intake nipple. When under boost, the turbo is sucking enough air to lower the pressure in the airbox or intake tubing, thus pulling through this port on the valve cover.

Many threads over the years have mentioned issues with oil control, seals, and even loss of power when eliminating this source of vacuum under boost. A catch can and/or check valve in the path is fine, but this nipple should be connected to the one on your aftermarket intake. After all, there's a reason they put it there.

Edit: ah, looks like you found some posts as well

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post #7356 of 7361 (permalink) Old 11-30-2016, 12:53 PM
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Originally Posted by Jeremy Smolik View Post
Nice.




I know lots of people have done this in the past, myself included, but wasn't this determined to be incorrect? The engine must be under vacuum at all times. Out of boost, the manifold pulls through the PCV to maintain negative pressure. Under boost, the manifold has positive pressure, so the vacuum must come from somewhere else. That somewhere else is the port on the driver's side valve cover, which is connected to the stock airbox or aftermarket intake nipple. When under boost, the turbo is sucking enough air to lower the pressure in the airbox or intake tubing, thus pulling through this port on the valve cover.

Many threads over the years have mentioned issues with oil control, seals, and even loss of power when eliminating this source of vacuum under boost. A catch can and/or check valve in the path is fine, but this nipple should be connected to the one on your aftermarket intake. After all, there's a reason they put it there.

Edit: ah, looks like you found some posts as well
^

Looks like I have some replumbing to do. Thanks Jeremy.
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post #7357 of 7361 (permalink) Old 12-09-2016, 10:03 AM
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my valve cover is completely vented to atmosphere....car works fine.

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go ahead...change yours too now; again
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post #7358 of 7361 (permalink) Old 01-23-2017, 08:06 AM
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This is how i do
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post #7359 of 7361 (permalink) Old 01-24-2017, 07:59 PM
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The gold/red thing you got goin on looks sick
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post #7360 of 7361 (permalink) Old 02-04-2017, 07:23 AM
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My engine bay. Car is for sale anyone who is interested
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post #7361 of 7361 (permalink) Old 02-06-2017, 10:01 AM
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All work done by me
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