93 cobra intake vacuum line setup - Mustang Evolution

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Old 06-28-2014, 09:11 AM   #1
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93 cobra intake vacuum line setup

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Going from a stock GT manifold to the cobra, does the middle port that I have capped also have to goto the fitting for the PCV. I pulled the intake back off to chase down a vacuum leak. But can't notice anything visually (pinched gasket,bad lines,cracked fittings)
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Old 06-28-2014, 09:40 AM   #2
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Or should it be like this.
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Old 06-29-2014, 05:01 AM   #3
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Hi, I don't have an answer for you. Wish I did. I'm doing the GT40 / Cobra set up on my 94 GT so I'm trying to find out things too.
In your top picture I noticed you have one fat line that you have connected to your lower intake in the 2nd picture.
On my Gt40 intake I have kind of a stiff rubber line that comes out the other side of that port the fat hose is on. It runs to what would be the top side of the manifold (in pic #1) . I have a port on that side the line runs to. The port is in the same place as the lines that come out in pic#1.....Just on the opposite side. I can't see in the pics if you have that port or not. I'm wondering if you do & if you removed that line & capped it off or something. I do see a yellow cap on the other end of the port that the fat hose is on so you got me wondering about it.
Any info you can provide on your install would sure be of great help. I know there's a lot of us that would like to know how to do it so please do a write up on how to install a GT40 / Cobra intake.
I'd much rather hear it from someone who actually did the swap & not someone who read about it...or his friend did it...or whatever. Too many people give info they don't know enough about. I found out the hard way when I spent $4K on a $2500 build because of bad or incomplete info.
Oh...GT40 Heads are a direct swap. No they are not. There's Air Intake Ports on E7 Heads & there are not on GT40's. You must modify. Best to use Dual Valve Springs. Yes, if you want to spend an extra $200 to have a ton of machine work done on the Valve guide Bosses so they will fit. My advice...Just use a good Single Spring & save the $200 in machine work.
Yeah...Been given a whole lot of incomplete info that ran up the cost of my build big time.
So please...post your install info.
THX, Hellish Horse.
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Old 06-30-2014, 08:17 AM   #4
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The 2nd pic you posted is the correct way to route it.
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Old 06-30-2014, 11:03 AM   #5
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Quote:
Originally Posted by scottydsntknow View Post
The 2nd pic you posted is the correct way to route it.
If i went from the middle port, then to the yellow capped line in the first pic, then to the PCV would it still work the same. Or does it have to be with the "T" setup.
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Old 06-30-2014, 01:25 PM   #6
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I'm having trouble visualizing it but as long as its all connected together it should work the same.
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Old 07-02-2014, 09:59 AM   #7
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The 2nd pic you posted it the correct way to run the vacuum lines.


When you buy a Cobra intake "New" you get a hose kit included plus the fitting that screws into the upper intake along with the upper and lower intake.
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