Thread: Cold Air Intakes: A Waste of Money

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  1. #1 Cold Air Intakes: A Waste of Money 
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    Hello everyone,
    I'm sure we see this a lot but I recently came across a video that stunned me. This video completely scientifically disproves Cold Air Intakes and leads me to believe that they're just junks of junk. So why are so many people convinced that they need them? Please explain what the guys in this video forgot to account for, so that I can feel good about putting a CAI on my car.
    The video is called "Cold Air Intakes Mythbusted"

    Cold Air Intakes Mythbusted: http://youtu.be/gCi2yo4UqPI
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  2. #2 Re: Cold Air Intakes: A Waste of Money 
    I live here. Slick2500's Avatar
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    Old video is old, and you have to realize they tested that on one car. You can also go out and find Youtube videos of people just changing the intake and getting an increase on the dyno. There are far to many variables that that video doesn't go into explaining.
    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower
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  3. #3 Re: Cold Air Intakes: A Waste of Money 
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    An automobile is a machine. All the parts in the machine should be formatted to work together.

    People who do intakes as their first mod do it for engine noise and "throttle response". In most cases the throttle response is nothing more than a mild change for the butt dyno.

    In reality, a cold air intake should be a supporting mod.

    That being said, a cold air intake for a factory supercharged car is pretty pointless due to supercharger heat soak.
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
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  4. #4 Re: Cold Air Intakes: A Waste of Money 
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    I was going to say try dynoing on a modded car once with stock intake, once with cold air intake, I bet the results would be different.
    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower
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  5. #5 Re: Cold Air Intakes: A Waste of Money 
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    Cais also help with turbulance
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  6. #6 Re: Cold Air Intakes: A Waste of Money 
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    Quote Originally Posted by l67ss View Post
    Cais also help with turbulance
    That's more of a tubing thing than a cold air intake thing. You could just replace the factory tube and retain the stock airbox if turbulance was the issue.
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
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  7. #7 Re: Cold Air Intakes: A Waste of Money 
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    I just looked on YouTube and the only dyno runs before and after that I can find are those from cold air intake sellers. Lol. Some of them claim that they got an extra 27 hp from having a CAI alone

    Sent from my SGH-M919 using Tapatalk
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  8. #8 Re: Cold Air Intakes: A Waste of Money 
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    Jannetty Racing did a dyno test of different intakes on a 100% stock 900 mile Gen 5 Camaro with the hood closed as it would be in normal driving applications.

    The highest peak horsepower gain was 15.9 and 10.6 ft/lb torque.
    * They note that this intake took an hour for them to install and the car was pinging due to running lean, which means it would require a tune to run properly (Read: The gains were mostly from running lean to the point of being dangerous)

    https://spreadsheets.google.com/pub?...=1&output=html
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
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  9. #9 Re: Cold Air Intakes: A Waste of Money 
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    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower
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  10. #10 Re: Cold Air Intakes: A Waste of Money 
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    I like the spreadsheet, that's pretty convincing, it's always hard to tell with car mods if it really does anything for the car. I guess I'll be on the search for the right intake!

    Sent from my SGH-M919 using Tapatalk
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  11. #11 Re: Cold Air Intakes: A Waste of Money 
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    Closed box is the best design. I'm not sure if wizaired is still around, but people used to really like thier intakes for the 3800.
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
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  12. #12 Re: Cold Air Intakes: A Waste of Money 
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    And some cars (3800 Firebird) have a giant muffler on the intake that sits directly behind the radiator that soaks up a boatload of heat and actually warms the incoming air, as well as a restrictor plate in the air box, and "noise canceling" fins in the airbox lid. Switching to "cold" air intake had a seriously noticeable change in acceleration, especially from a stop.
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  13. #13 Re: Cold Air Intakes: A Waste of Money 
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    Quote Originally Posted by nickolaughagus View Post
    I like the spreadsheet, that's pretty convincing, it's always hard to tell with car mods if it really does anything for the car. I guess I'll be on the search for the right intake!

    Sent from my SGH-M919 using Tapatalk
    Make a fender well search how to make a fender well intake and click on the one that mentions cx racing
    Quote Originally Posted by theaceofspades View Post
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  14. #14 Re: Cold Air Intakes: A Waste of Money 
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    I lost .43 WHP installing my cold air twin induction super vortex kit.

    The OP knows all.
    Last edited by blueguy; 05-05-2014 at 03:58 PM.
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  15. #15 Re: Cold Air Intakes: A Waste of Money 
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    The sister company to the company I just left was developing an intake kit for the 2007+ Silverado. They made a brand new design filter, a new MAF tube, couplers, and we made a heat shield for it. Before and after dyno testing had it pick up something ridiculous like 23 hp and 42 ft lb of torque over the stock air box/filter. There was no hanky panky done either. This was a legit dyno run done on my good friends dyno.


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  16. #16 Re: Cold Air Intakes: A Waste of Money 
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    So that just says that factory air boxes are poo? Did they test that compared to like an open cone like lots of people do here?

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  17. #17 Re: Cold Air Intakes: A Waste of Money 
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    It was an open filter with just a heat shield on two sides. Well it wasn't a cone, so to speak, but an open filter nonetheless.

    EDIT:

    I found a pic of the kit on one of their links

    http://www.greenfilterusa.com/find-cold-air-intake.php


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  18. #18 Re: Cold Air Intakes: A Waste of Money 
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    Interesting, I still never saw how CAI were worth the money tho. While moving I never saw my IATs go 10-14 over ambient with stock box and open cone, and even with the shielding it would just get heat soaked anyway. Meh

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  19. #19 Re: Cold Air Intakes: A Waste of Money 
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    Quote Originally Posted by stealthee View Post
    It was an open filter with just a heat shield on two sides. Well it wasn't a cone, so to speak, but an open filter nonetheless.

    EDIT:

    I found a pic of the kit on one of their links

    http://www.greenfilterusa.com/find-cold-air-intake.php
    Those look awesome!
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  20. #20 Re: Cold Air Intakes: A Waste of Money 
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    Quote Originally Posted by Russosaur View Post
    Interesting, I still never saw how CAI were worth the money tho. While moving I never saw my IATs go 10-14 over ambient with stock box and open cone, and even with the shielding it would just get heat soaked anyway. Meh

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    Each platform is different, some cars will see gains some won't. Our cars it just makes more intake noise is all.

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    Superchargers take away horsepower
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