Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

RAM AIR ?FOR OFF ROAD USE

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by wheelin247, Jan 6, 2001.

  1. wheelin247

    wheelin247 1/2 ton status

    Joined:
    Aug 29, 2000
    Posts:
    178
    Likes Received:
    0
    Location:
    hayward,ca
    THEY CAME OUT WITH A RAM AIR SYSTEM ON THE NEW CRATE ENGINES FROM GN I WAS WONDERING IF I WOULD BE GOOD FOR OFF ROAD USE BECUASE I WAS THINKIN WATER AND MUD MIGHT GET IN THERE AND GET CLOGED I DUNNO ?......
     
  2. smp

    smp 1/2 ton status

    Joined:
    Jul 5, 2000
    Posts:
    708
    Likes Received:
    0
    Location:
    Florida
    The only ram air that i know about is on some sports cars and some motorcycles it has an intake that goes to a snorkle on the hood or in front on a bike and when you hit 60 mph or faster it presurizes(sp?) the air box and forces more into the intake and it does increase power but this would be useless on an offroad vehicle because of lack of speed. Think of it as a supercharger that uses wind force to increase atmospheric pressure instead of engine power to turn a rotor or vain to increase pressure like a supercharger. Ram air does not make as much power as a super or turbo charger but it is almost free extra power at higher speeds.



    <A target="_blank" HREF=http://WWW.SMP.COLORADOK5.COM>http://WWW.SMP.COLORADOK5.COM</A>
     
  3. Goose

    Goose 1/2 ton status

    Joined:
    Feb 17, 2000
    Posts:
    1,127
    Likes Received:
    1
    Location:
    South Central Kansas
    The one I think you are talking about is an add on intake and fuel injection system by a company I can't remember right now. It should be the ultimate and great for off road. Just hook up a snorkle to the intake, seal everything else real good and go swimming! Don't really know why they call it "Ram Air" must just be a marketing thing.

    [​IMG]
     
  4. TX Mudder

    TX Mudder 1/2 ton status

    Joined:
    Jul 10, 2000
    Posts:
    2,514
    Likes Received:
    0
    Location:
    Houston
    SMP is right, the Ram Air is like ont he motorcycles - uses vehicle speed to force air through the air cleaner to the cyclinder - potentially at higher then atmospheric pressures. Wouldn;t do squat at 10 mph and less. They use these on 200 mph+ jap bikes.
    Actually, I'm not even sure if they still use them since they all went FI isntead of carb. I remember the carb's ZX-11 and others used them.
    -- Mike ( I have a bike and a truck - who needs a car? )
     
  5. Adrock

    Adrock 1/2 ton status

    Joined:
    Feb 17, 2000
    Posts:
    214
    Likes Received:
    0
    Location:
    Marlboro, MA
    if you put a hood scoop on your truck it may boost HP a little. since you engine right now takes warm or hot air from the engine bay it is less dense. and the colder the air, the more dense it is, so if you put a scoop on your hood and place it about where your airfilter is, you engine will get colder air. Now i THINK this is how it works- you put the same amout of air in your cylinders, but since it is more dense, its like you are getting more air, which in turn gives you slightly more HP. I believe that is true. i have a hood scoop on my truck for use as a snorkel. when i close the hood, the hoodscoop has an airtight and watertight connection to the airfilter. i guess i could go to just about the top of my hood in water, but i havent made it anywhere close to that yet. hope that helps.

    Adam
    a.k.a. Adrock
    88 Chevy Blazer FI 383
    Feel the Thunder
    [​IMG]
     
  6. Cmoe

    Cmoe 1/2 ton status

    Joined:
    Feb 19, 2000
    Posts:
    2,884
    Likes Received:
    0
    Location:
    Mesa,AZ
    There is a company (Air Inlet Systems) that makes a Ram Air Box. I haven't got one yet but it is something that is on my list of things to do if I dont do a TPI system.

    http://www.ramairbox.com/

    C'moe

    <font color=black>the blazer is "Back in Black"
     
  7. Rob 85K5

    Rob 85K5 1/2 ton status GMOTM Winner

    Joined:
    Feb 17, 2000
    Posts:
    1,487
    Likes Received:
    0
    Location:
    Pensacola, Florida
    You may be thinking of the the newCrate motor that is fuel injected. This is easily adapted to a ram air application because of the throttle body at the front of the motor. There are 2 pluses for offroad use, on the fule injection, and 2 the ease to hook up a snorkel. Ram air would be a waste of money on and offroad truck unless you are doint high speed dessert racing

    Rob 85K5

    <font color=orange>Bleedin' Chevy Orange</font color=orange>
     
  8. Zepplin

    Zepplin 1/2 ton status

    Joined:
    Aug 29, 2000
    Posts:
    920
    Likes Received:
    0
    Location:
    Bay City, MI 48706
    Pace Parts sells a complete Big Block 502 with RamJet Fuel Injection. It is a complete drop in motor and it only costs $7,000! The picture in my signature is the ramjet engine. Or go to <A target="_blank" HREF=http://www.paceparts.com>http://www.paceparts.com</A>

    74 Blazer
     
  9. BlazerGuy

    BlazerGuy 3/4 ton status

    Joined:
    Apr 20, 2000
    Posts:
    9,206
    Likes Received:
    0
    Location:
    abcde
    I dont think it would be a complete waste because you will be getting in cooler air, it just wont be forced in the intake during low speed, am I wrong???

    [​IMG]
     
  10. dyeager535

    dyeager535 1 ton status Premium Member

    Joined:
    Dec 13, 2000
    Posts:
    26,982
    Likes Received:
    191
    Location:
    Roy WA
    "Ram Air" is less effective for the "ramming" effect it has on incoming air, as it is for COLD incoming air. As an example, cooling the intake air charge from approximately 150 degrees to 75 degrees provides a 30% power increase! Obviously that is no small amount. Stock underhood temps of 150 are easily attained, and with ambient air temp at 75, the more cold air you can ge the engine to ingest, the better. That is why cowl induction works so well. Functional cowl induction, not fake cowl induction. That is also why you have to be careful with open element air cleaners...they flow more, but they also flow more HOT air. Obviously the best trade off is a high flow cold air system, basically any that provides a straight path for large volumns of cold air to the engine.

    Dorian
    My K5 and Chev/Olds links: <A target="_blank" HREF=http://yeagerd.home.mindspring.com/index2.html>http://yeagerd.home.mindspring.com/index2.html</A>
     
  11. BlazerGuy

    BlazerGuy 3/4 ton status

    Joined:
    Apr 20, 2000
    Posts:
    9,206
    Likes Received:
    0
    Location:
    abcde
    I guess that's why you see guys at the dragstrip with bags of ice on the intake between runs [​IMG]

    [​IMG]
     

Share This Page