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Ok Crazy intake or Snorkle Idea.

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Grim-Reaper, Mar 13, 2001.

  1. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    Well most of us know the pro's and con's of the factory through the grill intake. Some have put other snorkles on by adapting ARB kits from other vehicles or using PVC pipe. I too want to move my intake to a location where it can get clean cool air and be protected from sucking water. Around here a snorkle up the side of the truck is just something to get ripped off on branches the places I wheel. I need something less likely to get ripped off but still serve the purpose.
    Has anybody tried sucking air from the box at the base of the windsheild? Plenty of air there. Fairly well protected from water having a straight shot in. On the hwy that's a proven pressure zone so it would work like a cowel induction hood does on some cars. On the after 80 trucks with the fixed cowl grill you could even install a stack like a Hummer at the base of the windsheild. For us older truck guys we could route through the fender right in front of the door instead of having to come 2 ft down the fender.


    Diging it in the dirt with my K5's
    Grim-Reaper
    <A target="_blank" HREF=http://grimsk5s.coloradok5.com/>http://grimsk5s.coloradok5.com/</A>
     
  2. delta9blazer

    delta9blazer 1/2 ton status

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    I thought about that same location, but if you go through deep water, it runs up the hood, and i'm afraid of it dropping down the slots. also, what will rain do? or a car wash?
    on the plus side, it would definitely be dense air on the highway.

    <font color=purple>delta9blazer</font color=purple>
     
  3. realsquash

    realsquash 1/2 ton status

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    Yeah, i know what water does if it goes over the hood. I would run a tube from the air cleaner to the area right next to the heater box and cut a 3/4 circle out of the rear of the hood and run it up the windsheild to an intake that can be turned forward or backward (hiway or offroad). It would run up the windsheild with a mount on the bottom of the window (on the cab) and the top (on the cab). Then you could open the hood, have "ram air", and get it up outta the way. What do you think?

    Squash
    <A target="_blank" HREF=http://www.trailrunners4x4.org/users/realsquash>http://www.trailrunners4x4.org/users/realsquash</A>
     
  4. dyeager535

    dyeager535 1 ton status Premium Member

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    As much as I hate cutting holes in our trucks, the best area would be right through the firewall/cowl area, into the channel that the wiper linkage hides in. A vertical backwards facing intake, at the speeds I assume you would be hitting water, would likely not be enough to suck in water....you could easily put a plate directly above the air hole you cut, attached to the louvered piece, so that it would only block water falling straight down. It must not be too bad of a problem with water in that area, or cowl inductiuon hot rods (truely functional cowl intake) would have extreme problems driving in the rain and such. Firebirds with forward facing scoops had this problem, but to my knowledge, there was never a problem with cowl induction camaro's, Chevelles, etc.

    Dorian
    My K5 and Chev/Olds tech/links page: <A target="_blank" HREF=http://www.dorianyeager.com/index2.html>http://www.dorianyeager.com/index2.html</A>
     
  5. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

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    Good Idea dyager535 sorry I didn't think about it.

    Diging it in the dirt with my K5's
    Grim-Reaper
    <A target="_blank" HREF=http://grimsk5s.coloradok5.com/>http://grimsk5s.coloradok5.com/</A>
     
  6. Mudzer

    Mudzer 1/2 ton status Author

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    Ok, after reading these posts, I thought of an idea which would use Grims idea, but take it a little further. How about on the newer style front clip '81-'91 routing the intake into the cowl area, then keep the tubing sealed inside the cowl with a 90 degree turn straight up, and cutting a hole through your cowl sheetmetal. This would be sort of like a Hummer. You would then put some sort of breathable rain cap on there like a Hummer has. This would not work on the older '73-'80 body style because the hood is the cowl cover, but it would work for the '69-'72 and '81-'91. I think Ill give this a try sometime.

    Mudzer 1978/91 K5
    <font color=blue>www.mudzer.coloradoK5.com</font color=blue>
     
  7. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    Well, there is not a huge amount of room in those cowls but it could probably be done using some sort of oval tubing (if you could find it AND a 90) instead of round to get the required volume. I suppose you could get some sheet and fab what you need from scratch.

    And on the older stuff, it might even be easier since you could use standard PVC and the hood could always close over it like the old "shaker" hood scoops...

    Bad Dog

    85 K30 CUCV, 350 TBI, TH400, NP205, D60/C14, 4.56
    Coming soon: 4" lift, 40" tires, massive cutting, shorter wb and rear overhang.
     
  8. coopertwpk

    coopertwpk 1/2 ton status

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    why not just suck air from the inside of the cab next to the heater just have a switch from one to the other you would never have to worry about it the race trucks suck air from inside the cab its cleaner that way.

    88k5 silverado w4"lift soon to have <font color=orange>d44 and corp14ff</font color=orange> with 4.56s
     
  9. BadDog

    BadDog SOL Staff Member Super Moderator Author

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    You know, I thought about that "pull from the cab" when I made my previous reply. I removed it because I thought it might be too noisy. Not sure, I guess it depends on the person. If they put a switch on it as you suggest, that would remove the problem of noise for daily driving...

    Bad Dog

    85 K30 CUCV, 350 TBI, TH400, NP205, D60/C14, 4.56
    Coming soon: 4" lift, 40" tires, massive cutting, shorter wb and rear overhang.
     
  10. jarheadk5

    jarheadk5 1/2 ton status

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    I think if you had the engine air intake in the cab, it would suck dust in through every crack, crevice, and worn-out weatherstrip on your truck. Something to consider (or debate!)...

    [​IMG] Semper Maintenance!
     
  11. HarryH3

    HarryH3 1 ton status Author

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    I knew a guy in Florida that did this over 20 years ago. He liked to play in the swamps so he installed some dryer vent tubing through the firewall. When he wanted to play in the deep stuff he would connect the tube to his air cleaner and let the engine get it's air from the cab. He also weatherstripped the doors so they wouldn't leak too fast when under water. He used to carry around a picture of him, sitting in his truck in a lake, with the water just below the side glass!

    And yes, you have to leave a window open somewhere when the engine is getting air from the cab! [​IMG]

    <font color=black>HarryH3 - '75 K5</font color=black>
    <A target="_blank" HREF=http://ThunderTruck.ColoradoK5.com>http://ThunderTruck.ColoradoK5.com</A>
     
  12. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    I think this would be a good idea even just for getting cool outside air to the carb instead the hot underhood air. I've been thinking about doing something like this for a while but it never seems to make it far enough up the priority list....[​IMG]

    I never really liked the idea of intake air from the grill area, it always looked like an invitation to disaster, and our trails are so tight a snorkel kit would be hanging off the branches the first trip. I have a hard enough time with antenna's and mirrors!

    Rene (eyeing up the dryer hose....[​IMG])

    [​IMG]<A target="_blank" HREF=http://jules.coloradok5.com>http://jules.coloradok5.com</A>
     
  13. Corey-88K5

    Corey-88K5 1/2 ton status

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    I would vote against it. If the truck sits, the fumes from the fuel in the carb would drift back into the inside of the vehicle. If you doubt this, some time, open the hood and take a wiff, its even worse if you open the breather cover, and this is what the "snorkle" would be connected to. If you want a snorkle, just run a cable from the top of the truck down to the hood, or corner of the bumper. This will push the bushes out of the way and allow you to have your snorkle. I think the Camel Trophy trucks do something like this.

    Corey
    88K5

    [​IMG]<font color=red>Girls Like Guys In Bow Ties
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  14. Thumper

    Thumper 1/2 ton status

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    To add to the in-cab air intake... I have rode in trucks with these in the mud racing pits, and they are super noisy... and at full throttle, they make it real tough to breathe! lol

    Mike


    <font color=blue>Thumper
    85 Fullsize Jimmy
    [​IMG]
    <font color=red>Lets Go Wheelin! </font color=red>
     
  15. EDdaTREE

    EDdaTREE 1/2 ton status

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    I think some type of flapper valve could be rigged up with a cable from a manual choke cable kit to pull from inside the cab. Just rivet on an extra snorkel onto the air-cleaner from the boneyard and route it to near the glove box.

    "Rage WITH the Machine!"
     

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