1. Welcome To GMTruckClub.com!

    The #1 Chevy Truck Forum Online
    Online since 2004, we are the #1 Chevy Truck & SUV forum and user community. If you have any questions about your Chevy or GMC Truck, SUV or Crossover, or just want to connect with other GM owners and enthusiasts around the world, you've found the best place on the internet to do that.

    Join Today ~ It's Free
    Registering is Free and Easy! Hope to see you on the forums soon!

How to shop for an intake

Discussion in 'Performance & Fuel' started by JennaBear, Jun 21, 2009.

Random Gallery Photos

Thread Status:
Not open for further replies.
  1. JennaBear

    JennaBear New Member 100 Posts

    There are three different types of intakes:

    Closed Box (ie. Volant, Outlaw)
    Open Element (ie. AEM, K&N FIPK)
    Drop In filter (ie. K&N)

    When looking at manufacturers claims, one shouldn't just look at the HP numbers:

    You need to look at the highest average airflow which is directly related to torque (subsequently HP).

    Manifold pressure (MAP) is a measurement of restriction, the higher the number the less restriction, so this is another big point.

    IAT (Intake Air Temp) recovery is another big factor in narrowing down a good intake.

    Closed box intakes do better at lower speeds as there won't be as much of a heat soak issue. The open elements use metal shields which absorbs heat (heat soak).

    The open element intakes drop temperatures a lot quicker at higher speeds which in turn creates denser air. The denser air allows for more airflow, which then of course makes more power.

    This all being said, intakes (as well as exhausts) are a matter of personal preference, just taking off the stock tube takes off a lot of restriction. Realistically, the differences between intakes (ie. open vs. open and closed vs. closed) will be minimal. One thing I do encourage anyone who purchases an aftermarket unit to do, is check the fitment every couple hundred miles, these things find a way to wiggle loose and can cause a drop in performance as well as MPG.
    1 person likes this.
  2. 97chevz71

    97chevz71 New Member 100 Posts

    Will check mine thanks
  3. Jimmiee

    Jimmiee New Member 1000 Posts 100 Posts

    Thanks for clarifying that for us!
  4. Springthing

    Springthing New Member 1000 Posts 100 Posts

    Awesome information. I don't think I've ever read what the differences are between the CAIs. Thanks!
  5. masterfoxscout

    masterfoxscout New Member 100 Posts

    Good post Jenna. This should help out the nooblets shopping for a CAI. I personally think this should be a sticky!!!!!
  6. bry2500

    bry2500 New Member 1000 Posts 100 Posts

    Great info!!!!! I second the Sticky
  7. iPublicEnemy47

    iPublicEnemy47 New Member 100 Posts

    good info on intakes
  8. JennaBear

    JennaBear New Member 100 Posts

    Thanks guys, I hope this will help folks out in their quest for a new intake! :glasses:
  9. 2ToNe04

    2ToNe04 New Member 1000 Posts 100 Posts

    they should sticky the tbs thread and cai thread and the others.

    Inform those who dont know yet :)
  10. JennaBear

    JennaBear New Member 100 Posts

    Thanks guys, we tested a bunch of intakes on the dyno paying close attention to all the above mentioned factors. If you have any questions, you know where to find me! :great:
Thread Status:
Not open for further replies.

Share This Page