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"intake hoses" on LS2

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Old 04-04-2011, 10:02 AM
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Default "intake hoses" on LS2

Ok, maybe a bad title but I'm not sure what to call them. PCV lines, vacuum lines??

Anyway, I put a GTO intake on my TBSS LS2, can someone verify my hose connections?

1. The barb on the valley pan is capped.
2. The barb on the driver's side of the TB, has a hose to the rear of the driver's side valve cover.
3. The big barb on the rear of the intake to my brake booster.
4. The small one (for HVAC) is capped.
5. The barb on the passenger side of the TB has a hose to the passenger side valve cover.

Seem right?

And this thing doesn't run a PCV valve, right?

Thanks.
Old 04-04-2011, 12:25 PM
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they all run a PCV valve. ALL modern engines MUST run one... by modern i mean after about 1965 or so... lol
i'll try to find a diagram of the PCV valve location and system
Old 04-07-2011, 08:23 PM
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Magntik...I'm doing the same thing as you. I haven't been able to confirm the hose routing as you have stated. The TBSS valley cover doesn't have the connection for the vacuum line behind TB. I don't know if its as simple as attaching Driver Side valve cover to that spot on passenger side of intake or not. The passenger side valve cover connection is to the air intake forward of the TB. What I decided to do is just buy the valley cover that has the PCV connection...attach the preformed hose from my car intake to it like it was designed. I will cap off the driver side valve cover. The passenger side valve cover will attach forward of TB on the GTO K&N CAI I am using.
Old 04-07-2011, 08:41 PM
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Originally Posted by ModMuscle
...The TBSS valley cover doesn't have the connection for the vacuum line behind TB.
So whats the connection on mine that's sticking up somewhat angled towards the pass. valve cover?

Originally Posted by ModMuscle
What I decided to do is just buy the valley cover that has the PCV connection...attach the preformed hose from my car intake to it like it was designed.
Where do you plane on buying that from and do you have a part number for it?
Old 04-07-2011, 09:23 PM
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Well...I stand corrected. I guess I should have said "Mine does not have the connection..."

Here is the cover I am buying P/N 12599296:

http://cgi.ebay.com/ebaymotors/GM-PN...item3f06d03d17
Old 04-08-2011, 07:33 AM
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Originally Posted by ModMuscle
Well...I stand corrected. I guess I should have said "Mine does not have the connection..."

Here is the cover I am buying P/N 12599296:

http://cgi.ebay.com/ebaymotors/GM-PN...item3f06d03d17
I never took mine off, partly because I read there was "nothing" under it so to speak and partly because the gasket from the dealership was almost $50.

So I guessing mine looks like that and I should run a hose to it, huh?
But from where?
I didn't get a preformed hose with the intake I bought, where does that one go?
Old 04-08-2011, 07:52 AM
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Here is a pic from this thread:
https://ls1tech.com/forums/conversio...nnections.html

Old 04-08-2011, 08:51 AM
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damn, that's where my pass. valve cover is connected to the intake! LOL
Old 04-08-2011, 09:01 AM
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Passenger side should attach to intake tube forward of the throttle body.
Old 06-03-2011, 01:24 PM
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What if I don't want to change the valley cover... I am running a TBSS LS2 also... and I am missing the valley cover tube.

Chris
Old 06-03-2011, 01:49 PM
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I used this thread to help me with the PCV for GTO LS2


http://www.ls2.com/forums/showthread.php?t=829128

Regards,

Matt
Old 06-03-2011, 02:30 PM
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^ there's good info in that link



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