roto molded plastic or aluminum CAI? - Ford Mustang Forum
View Poll Results: what kind of cai do you prefer?
Roto Molded Plastic with box enclosure for the filter 2 13.33%
Aluminum tube with box enclosure for the filter 1 6.67%
Roto Molded Plastic with heat shield that seals against the hood 12 80.00%
Aluminum tube with heat shield that seals against the hood. 0 0%
Voters: 15. You may not vote on this poll

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post #1 of 32 (permalink) Old 06-26-2013 Thread Starter
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roto molded plastic or aluminum CAI?

just curious what you guys prefer, and why
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post #2 of 32 (permalink) Old 06-26-2013
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Mine's aluminum with some kind of chrome finish. I feel that it will help reflect heat better than a black plastic one. All my previous cars had similar intakes as well. In fact, I had never seen a plastic intake until I got a mustang.
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post #3 of 32 (permalink) Old 06-26-2013
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The plastic is more heat resistant than the chrome or aluminum of many CAI. It's better. That being said I think the ultimate CAI is one that seals against the hood but also has a box enclosure and a link to the stock CAI duct. There isn't one like that, other than the STEEDA.

1st Time at the 1/4 Mile Best E.T out of 4 passes (Without Ported Intake Manifold):
Uncorrected 2500DA 13.5@105.69 MPH w/ a 2.17 60".Corrected 13.3@107 MPH
Ford Racing 4.10 Gears/ Borla S Type Axleback/BBK Chrome Equal Length Shorties/Lethal Performance Catless H Pipe/JLT CAI/Ported Upper and Lower Intake Manifolds/Steeda 91 Octane Tune/ SR Springs
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post #4 of 32 (permalink) Old 06-26-2013 Thread Starter
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actually I believe the afe power intake is like that as well
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post #5 of 32 (permalink) Old 06-26-2013
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My roush is enclosed with seal against hood and ram air duct thru grill. All plastic.
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post #6 of 32 (permalink) Old 06-26-2013
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The K&N is also a sealed design.



I fail to grasp how thicker, black plastic can dissapate heat better than a thin reflective piece of metal. It's counterintuitive at best. Black absorbs heat, shiny metal reflects it away.
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post #7 of 32 (permalink) Old 06-26-2013
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Well I stand corrected there are quite a couple like that. Those are the best ones, I would think

1st Time at the 1/4 Mile Best E.T out of 4 passes (Without Ported Intake Manifold):
Uncorrected 2500DA 13.5@105.69 MPH w/ a 2.17 60".Corrected 13.3@107 MPH
Ford Racing 4.10 Gears/ Borla S Type Axleback/BBK Chrome Equal Length Shorties/Lethal Performance Catless H Pipe/JLT CAI/Ported Upper and Lower Intake Manifolds/Steeda 91 Octane Tune/ SR Springs
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post #8 of 32 (permalink) Old 06-26-2013
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Quote:
Originally Posted by J Orbit View Post
The K&N is also a sealed design.



I fail to grasp how thicker, black plastic can dissapate heat better than a thin reflective piece of metal. It's counterintuitive at best. Black absorbs heat, shiny metal reflects it away.
Try putting your hand on your intake tube after a hard drive for an hour. Can you do it? because I can rest my hand on mine no problem.

1st Time at the 1/4 Mile Best E.T out of 4 passes (Without Ported Intake Manifold):
Uncorrected 2500DA 13.5@105.69 MPH w/ a 2.17 60".Corrected 13.3@107 MPH
Ford Racing 4.10 Gears/ Borla S Type Axleback/BBK Chrome Equal Length Shorties/Lethal Performance Catless H Pipe/JLT CAI/Ported Upper and Lower Intake Manifolds/Steeda 91 Octane Tune/ SR Springs
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post #9 of 32 (permalink) Old 06-26-2013
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I know the BBK one my wife has keeps the IAT's right at ambient temp.

Just wish Cold Air Induction's made a CAI for the Mustang, I have it on my Camaro and its ceramic coated fully sealed box with a heat shield inside to keep the engine temps out.

Wife = 2012 Mustang V6 Premium Grabber Blue BBK CAI, BBK LT w/ HFC, Borla ATAK, MPT Tune, DSS Driveshaft, 3.73 FRPP Gears, BMR LCA's | Best = 13.5 @ 105
Husband = 2010 Camaro V6 Synergy Green Edition IPF Supercharger Best = 12.5 @ 111
Closest finish @ the line = Wife by 0.0028 seconds (4.79 inches)

Also own a 2014 Mustang GT Premium, Brembo Package, 401A, Comfort Package, Shaker Pro System, Pedestal Spoiler
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Quote:
Originally Posted by powerwhee View Post
Try putting your hand on your intake tube after a hard drive for an hour. Can you do it? because I can rest my hand on mine no problem.
Yeah, I can but it's not bad at all.

Correct me if I'm wrong but I think you'd WANT it to be hot to the touch, that would tell me the surface is reflecting the heat away, not being soaked up by thick plastic. The metal intake shouldn't soak up too much heat since it's not in direct contact with the engine.

I installed an intake manifold gasket on my last car and the intake itself would be cool to the touch even after 20 min hot laps in TX heat. I wonder if we could benefit from the same.
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Where's the ceramic CAI?
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I would recommend the plastic tube intakes. Metal is a better conductor of heat than plastic. When you put your hand on the hot metal intake, the inside is just as hot as the outside.

Look in you cupboards at your frying pans. They all have a plastic/rubber moulding over the metal handle.

Also, most of your cooking utensils are made of plastic: spoons, spatulas, etc.

Just my $.02.

2012 Grabber Blue, V6, Manual w/ 2.73, 91H BAMA tune, Airaid CAI, Magnaflow Cat-Back Competition Series Exhaust, J&M LCAs, Hood Spears, Misc. Plasti Dip Accents
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Quote:
Originally Posted by J Orbit View Post
Yeah, I can but it's not bad at all.

Correct me if I'm wrong but I think you'd WANT it to be hot to the touch, that would tell me the surface is reflecting the heat away, not being soaked up by thick plastic. The metal intake shouldn't soak up too much heat since it's not in direct contact with the engine.

I installed an intake manifold gasket on my last car and the intake itself would be cool to the touch even after 20 min hot laps in TX heat. I wonder if we could benefit from the same.
No, that would mean the whole intake tube is hot and therefore the air charge inside the tube will also be hotter because of it. The plastic not being hot does not mean it was absorbed into the plastic so throughly it's not Hot to the touch, that doesn't make sense. It means the heat wasn't absorbed period. Plastic is not a good conductor of heat. Metal is


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1st Time at the 1/4 Mile Best E.T out of 4 passes (Without Ported Intake Manifold):
Uncorrected 2500DA 13.5@105.69 MPH w/ a 2.17 60".Corrected 13.3@107 MPH
Ford Racing 4.10 Gears/ Borla S Type Axleback/BBK Chrome Equal Length Shorties/Lethal Performance Catless H Pipe/JLT CAI/Ported Upper and Lower Intake Manifolds/Steeda 91 Octane Tune/ SR Springs
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Metal tubes just look cooler but there hotter. Teeeheee
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Wish the body panels were high impact plastics. Oh wait a minute somebody already did that.
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