CAHood vents, are they strong low pressure areas?

Discussion in 'SRT Hellcat General Discussions' started by paul suloff, Jul 24, 2015.

  1. paul suloff

    paul suloff Silver Member

    Joined:
    Aug 25, 2014
    Messages:
    645
    Likes Received:
    208
    Trophy Points:
    193
    With all this CAI talk I was considering opening up the top of the stock air box. If the hood vents are pulling air in it could add some flow. If they are just for letting head out could fab up a little scoop to catch air coming over the hood and seal the vent to the top of stock air box. Something to use at the track, change it back for daily driving. I noticed the aFe had a window there.
     
  2. Paladin06

    Paladin06 Have Guns Will Travel Staff Member Hellcat Car Club Gold Supporting Member

    Joined:
    Sep 3, 2014
    Messages:
    4,641
    Likes Received:
    1,785
    Trophy Points:
    778
    Location:
    San Tan Valley, AZ
    Vehicle:
    Challenger SRT Hellcat
    The two left and right of the center scope are extractors for letting heat out.
     
    • Agree Agree x 2
  3. butterscotch71

    butterscotch71 Hellcat Member

    Joined:
    Nov 22, 2014
    Messages:
    71
    Likes Received:
    13
    Trophy Points:
    8
    Vehicle:
    Challenger SRT 392
    If you open the top of the stock box you'd be pulling unfiltered air in. The stock box pulls air in from the bottom through the filter.
     
    • Agree Agree x 2
  4. paul suloff

    paul suloff Silver Member

    Joined:
    Aug 25, 2014
    Messages:
    645
    Likes Received:
    208
    Trophy Points:
    193
    Car makes 12 more HP without filter from posts here. More air flow could up that. This would be for track use only.
     
  5. Paladin06

    Paladin06 Have Guns Will Travel Staff Member Hellcat Car Club Gold Supporting Member

    Joined:
    Sep 3, 2014
    Messages:
    4,641
    Likes Received:
    1,785
    Trophy Points:
    778
    Location:
    San Tan Valley, AZ
    Vehicle:
    Challenger SRT Hellcat
    So you would sacrifice heat extraction/engine cooling? Not a good idea. Keep in mind the air is filter the bottom side of the filter. Opening the top would bring in unfiltered air into you $20 (+) engine.:(
     
  6. paul suloff

    paul suloff Silver Member

    Joined:
    Aug 25, 2014
    Messages:
    645
    Likes Received:
    208
    Trophy Points:
    193
    a 1/4 mile at a time, what heat build up is there? insignificant! That's why there is a hood latch.
     
  7. Paladin06

    Paladin06 Have Guns Will Travel Staff Member Hellcat Car Club Gold Supporting Member

    Joined:
    Sep 3, 2014
    Messages:
    4,641
    Likes Received:
    1,785
    Trophy Points:
    778
    Location:
    San Tan Valley, AZ
    Vehicle:
    Challenger SRT Hellcat
    Have fun..
     
  8. MoparPhil

    MoparPhil Gold Member

    Joined:
    Feb 15, 2015
    Messages:
    174
    Likes Received:
    147
    Trophy Points:
    413
    Location:
    Provo, Utah
    Vehicle:
    Challenger SRT Hellcat
    The intake is in the headlight area because it is a high pressure area. The top of the hood is a low pressure area. The air deflects up and over the nose of the car. That's why Pro Stock scoops are so high up above the hood; to get into the airflow. All of those cool hood scoops from the muscle car era were basically window dressing. Even our beloved shaker hoods provided minimal gains. The only one that really had a chance of doing much good because they were large enough to be up in the airflow were the '69 1/2 six pack and six barrel scoops. The next high pressure area is the windshield. That's why so many use cowl hood scoops. You'll be ruining perfectly good parts for no real gain.

    There is a lot of heat build up in a 1/4 mile. Unless you have a long time between passes, cooling is huge. Don't screw up an amazing cooling system.
     

Share This Page

Search tags for this page

hood vent low pressure