Intake manifold w/ S/C install

[GregO]

I wonder if Steeda knows

There’s some significant plumbing differences on the Mach 1 manifold pictured here vs. the Shelby GT350.
IMRC plumbing for sure.
Brake Booster aspirator is another.
Those IMRC actuator solenoid connections are not typical of the GT350 manifold either.

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[jmagnus87]

Got that Frigidaire intake manifold, guaranteed to bring your IATs down to Mt. Dew levels!

 

[K4fxd]

There’s some significant plumbing differences on the Mach 1 manifold pictured here vs. the Shelby GT350.

It looks like a major difference but it is not. The top right hand aspirator goes to the brake booster, the bottom left hand goes to the CAI and the open port on the left side of the mani goes to the PCV valve.

Did not get a good shot of the rear but it does look like it uses 18 up IMRC plugs. However in the tune it uses 15 to 17 data. So would still be plug and play with the IMRC adapter plugs and the 15 to 17 80mm TB, on a gen 2.

 

[GregO]

It looks like a major difference but it is not. The top right hand aspirator goes to the brake booster, the bottom left hand goes to the CAI and the open port on the left side of the mani goes to the PCV valve.

Yup,
I plumbed mine using the OEM Shelby GT350 brake booster line. My aspirator port is capped and the brake booster port is connected just as a GT350.
No dispute here there’s a few ways to get this all done. I treated my aspirator plumbing as a manual transmission not an automatic but now I’m just getting in the weeds with personal preferences.

This leads me to a new question; when using a centrifugal SC’er which is the most correct brake booster routing ? Direct to Aspirator or direct to manifold port as it is on the production GT350 ?

 

[Proshop]

Yup,
I plumbed mine using the OEM Shelby GT350 brake booster line. My aspirator port is capped and the brake booster port is connected just as a GT350.
No dispute here there’s a few ways to get this all done. I treated my aspirator plumbing as a manual transmission not an automatic but now I’m just getting in the weeds with personal preferences.

This leads me to a new question; when using a centrifugal SC’er which is the most correct brake booster routing ? Direct to Aspirator or direct to manifold port as it is on the production GT350 ?

I don’t have a gt350 mani just my 18+ but my brake booster is hooked straight to the manifold and not the aspirator and have no issues.

 

[K4fxd]

This leads me to a new question; when using a centrifugal SC’er which is the most correct brake booster routing ? Direct to Aspirator or direct to manifold port as it is on the production GT350 ?

Either way would work as long as there is a check valve preventing boost from getting to the booster.

 

[jmagnus87]

Just got my GT350 manifold in today, holy crap this thing is beefy! Way heavier than i was anticipating! Are the IMRC fins AND rod made of steel? And do they work essentially like a blend door for hvac?
i didn't take it completely out of the box and plastic yet but is the mating surface all aluminum? I couldn't tell what the aluminum tubes were that we're sticking up on either side of it? The TB was pretty straightforward though.

 

[HKusp]

Just got my GT350 manifold in today, holy crap this thing is beefy! Way heavier than i was anticipating! Are the IMRC fins AND rod made of steel? And do they work essentially like a blend door for hvac?
i didn't take it completely out of the box and plastic yet but is the mating surface all aluminum? I couldn't tell what the aluminum tubes were that we're sticking up on either side of it? The TB was pretty straightforward though.

Pics or it didn't happen. ;)

 

[jmagnus87]

Pics or it didn't happen. ;)

Oh it happened alright!!

 

[HKusp]

Sexy looking!

 

[GD~]

Sexy looking!

So is the orderliness of that wrench drawer!

 

[jmagnus87]

So is the orderliness of that wrench drawer!

Yeah um, i may have OCD but i can't confirm never been tested

 

[Twistrr]

VMP posted dyno results of a CNC ported 18+ intake on a gen2 and it was impressive. I have 2021 and may do that manifold with cams, long tubes and a Procharger D1x.

 

[jmagnus87]

VMP posted dyno results of a CNC ported 18+ intake on a gen2 and it was impressive. I have 2021 and may do that manifold with cams, long tubes and a Procharger D1x.

Yeah man, after the throttle body and the other things i needed, a ported 18 intake would have been cheaper but i wanted to have some bit of a Shelby on my car lol

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