Sheet metal upper intake ?s. - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 10 Old 07-14-2009, 06:49 PM Thread Starter
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Sheet metal upper intake ?s.

The bread box style, are they worth anything hp/tq wise? For the 86 to 93 stock intake.

Thanks.


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post #2 of 10 Old 07-14-2009, 07:16 PM
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The bread box style, are they worth anything hp/tq wise? For the 86 to 93 stock intake.

Thanks.
It would be pointless to but a breadbox on top of the stock intake. The lower is the limiting factor in the stock manifold u/l. Now putting a bread box style upper on top of the stock 5.0 TRUCK intake(similar to systemax lower *square ports) would net you some sweet power.


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post #3 of 10 Old 07-15-2009, 12:51 AM
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I do think it is pointless as well although know someone who made something like 618fwhp with a stock lower and a breadbox upper. He had Dart Sr heads, custom cam, 60-1 hifi turbo and basically that was it.

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post #4 of 10 Old 07-15-2009, 09:10 AM
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I currently run a Jegs Max Box intake on a completely stock lower - no issues so far but I do want to sell the setup (my wife bought me an RPM intake)




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post #5 of 10 Old 07-15-2009, 12:09 PM Thread Starter
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I thought about building my own, either for the truck intake or a GT40 lower intake.

ratedz: Where in OHIO are you, I'm south of Columbus.

Thanks.
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post #6 of 10 Old 07-15-2009, 12:25 PM
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Originally Posted by Stampede4ever View Post
I thought about building my own, either for the truck intake or a GT40 lower intake.

ratedz: Where in OHIO are you, I'm south of Columbus.

Thanks.
I'm just south of Cleveland

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525hp/626tq
*Sold drivetrain - Rolling Chassis may be available*
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post #7 of 10 Old 07-17-2009, 03:14 AM
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I do think it is pointless as well although know someone who made something like 618fwhp with a stock lower and a breadbox upper. He had Dart Sr heads, custom cam, 60-1 hifi turbo and basically that was it.
I'm willing to bet the mid-range torque would be down quite a bit as compared to a traditional long runner intake. The box uppers usually shine in the upper rpm range. http://www.theturboforums.com/smf/in...6734#msg966734

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post #8 of 10 Old 07-17-2009, 06:12 AM
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I will be going sheet metal upper. Aluminum to be exact. But it will be on a 4150 carb'd base Super Victor intake for EFI.
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post #9 of 10 Old 07-17-2009, 10:46 AM
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I should have stated in my last post that the overall combo will dictate how well a sheet metal/box type intake will work in a given setup.

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post #10 of 10 Old 07-17-2009, 11:02 AM
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I'm willing to bet the mid-range torque would be down quite a bit as compared to a traditional long runner intake. The box uppers usually shine in the upper rpm range. http://www.theturboforums.com/smf/in...6734#msg966734
On a turbo car the upper range is where I'd rather things shine anyway. I ran a homemade box upper on a ported/welded GT40 intake for awhile and had zero complaints and I bought it off someone who had zero complaints about it as well but was selling it because was searching for power to get him deeper into the 9s.


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