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K&N confusion

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by BillyBob, Mar 29, 2001.

  1. BillyBob

    BillyBob 1/2 ton status

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    I'm probably going to be ditching that crappy air box on the 84, so I was lookin in the Jegs catalog for an open air element by K&N. They offer one that raises it 9/16" from the carb, and one that's flat.. Now, the flat one is pretty darn expensive, but it says it clears the HEI distributor. Do I really need this one? or can I use the other one that raises the element? I still dunno if they fit my quadrajunk, but I just wanna get some info. Sorry if I sound kinda dumb twards this, I just have no idea what I'm looking for.

    <A target="_blank" HREF=http://billybob.coloradok5.com>http://billybob.coloradok5.com</A>
    If it ain't leaking oil, it ain't my truck![​IMG]
     
  2. muddin4fun

    muddin4fun 3/4 ton status

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    I got an edelbrock open air element and then put a K&N in it. I also put an edelbrock carb on it and am not sure how the open air elements fit stock setups.

    [​IMG]


    <A target="_blank" HREF=http://muddin4fun.coloradok5.com>http://muddin4fun.coloradok5.com</A>
     
  3. Emmettology 101

    Emmettology 101 3/4 ton status

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    I had the raised bottom K&N with a Performer intake and HEI. I had to buy a spacer from AutoZone to clear the Dist.....

    The spacer is palstic and only costs around $10......

    If you do any off-roadin around water, I would suggest just using a stock replacment K&N in the factory housing with the air intake(on the fact. snorkel) pointing towards the fire wall!

    I have seen many people run the open filters and when the water hits them, they collapse!(never seen a K&N do it though)...

    I even ran an Outerwear on my open K&N and still sucked water in..

    Mike [​IMG]
    See <font color=green>EMMETT</font color=green> -&gt; <A target="_blank" HREF=http://emmett.coloradok5.com>http://emmett.coloradok5.com</A>

    "Pimpin aint easy!"
     
  4. Hayduke

    Hayduke 1/2 ton status

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    my '86 still has the stock carb and my K&N open air filter fits fine...
    HAYDUKE

    Insured By COLT, Policy #.357M

    <A target="_blank" HREF=http://haydukesk5.coloradok5.com>http://haydukesk5.coloradok5.com</A>
     
  5. Goose

    Goose 1/2 ton status

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    I have an open K&N but would go a different route now. It works good, but all the dirt, bugs, etc. that makes it through the radiator gets thrown right into the filter by the fan. This includes tons of water when I get too deep. One time I took it off and slung the water out of it. It all but killed the engine there was so much water in the filter. It didn't collapse or anything tho'. I would use the stock filter housing and a K&N filter replacement and the stock snorkel or route a new snorkel. Oh yeah, this would also help pull in cool air instead of the heated air in the engine compartment.

    [​IMG]
     
  6. Cavalry

    Cavalry 1/2 ton status

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    With an open element you are always pulling hot engine air into your intake (not the most efficient way to do things) I have a book on rochester carbs that did a flow test on various air cleaners. No air cleaner flowed 713cfm. Guess what the "chevrolet truck type(tall) aircleaner with base and lid" did...flowed the same 713cfm. Everything else was less than that....without sucking hot air and whatever else. Just my opinion of course....

    Luke
    84 K5
    [​IMG]
     
  7. blazen91

    blazen91 1/2 ton status

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    On the 86 Burb I put a K&N in the stock air clearner. If you want more air that that, just get a new top for the air cleaner. Also remember that cooler air will produce more H.P. than the hot air you are going to be using from the engine compartment. Also, if your air cleaner is the same as the Burb's, it has a big inner filter inside the regular filter that is glued in. Rip it out and toss it!!

    <A target="_blank" HREF=http://www.blazen91.coloradok5.com>http://www.blazen91.coloradok5.com</A>
    Protect the land FOR the people
    Not FROM the people
     
  8. FWP

    FWP CRS

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    Calvary, that sounds like an interesting book. Where did you get it, what's the name, etc. I would like to check it out. Thanks.

    [​IMG]
     
  9. Cavalry

    Cavalry 1/2 ton status

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    The book is called "Rochester Carburetors" by doug roe ISBN# 0-89586-301-4. You could find it in any real bookstore (B&N) Its part of the "HP series" there are quite a few good books. I think summit carries them too? I highly recommend it if you are going to keep a quadrajunk.

    Luke
    84 K5
    [​IMG]
     
  10. Twiz

    Twiz 1/2 ton status

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    FWP, you might also want to check out;
    How to build horsepower, vol 1 methods for building h.p. for any engine.
    How to build horsepower, vol 2 carburetors and intakes, this one covers some perf mods for a Q-jet, does NOT cover rebuilding them. --Also covers air filters, flow charts, tests and design, very interresting stuff!
    Both of these are by David Vizard. pob co. SA design
    also, How to build and mod. chev. small block camshafts and valvetrains. Also by David Vizard.
    I have read these from cover to cover, and still go back to them often, I have lent them out and have had nothing but good reports. Good reading and makes you think!

    Twiztid [​IMG]
     
  11. FWP

    FWP CRS

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    Thanks Calvary and Twiztid. I'll check em out. Sorry for the late reply, been moving- man what a hassle [​IMG]

    [​IMG]
     

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