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Propane injection

Discussion in '1982-Present GM Diesel' started by Judd, Nov 2, 2002.

  1. Judd

    Judd 1/2 ton status

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    Anyone tried propane in a N.A. diesel? All the kits I see are for Turbo applications. How bout a home brew rig, any ideas?
     
  2. AzzKicker

    AzzKicker 1/2 ton status

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  3. RLBstein

    RLBstein 1/2 ton status

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    I think I am going to start collecting the stuff needed to do this myself. Although I have heard conflicting stories saying that propane injection isn't very noticeable on NA diesels. I also think using either a push-button switch (one that turns the propane on or off when pushed) so that it isn't always on if I forget to turn it off going downhill, or if there is a throttle controlled switch I could get that would only kick it on when I reach a certain percentage of throttle. Let me know if anyone knows about where I could get something like that.

    I also can't see buying hydraulic hoses, seems way too expensive, especially since I would mount my tank in the far back. I know a real good shop around here that can fabricate a much cheaper hose that would work just fine.
     
  4. arveetek

    arveetek 1/2 ton status

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    I don't believe that propane works on an N/A diesel because the LP will actually displace some of the air present in the combustion cycle. It only works with turbocharging, from what I understand.

    Here is an exchange I had with a diesel specialist awhile back:

    ME: "I understand that propane injection is best suited for turbocharged trucks. However, I was working with some LP next to my running diesel engine (don't ask what I was doing), and I decided to see what would happen if I squirted some vapor into the air cleaner. Just a little bit of LP made the engine speed up. This got me wondering why it wouldn't be effective on N/A engines as well. Is it because the LP acted as fuel, and under full load condtions, it doesn't matter if LP or diesel fuel is present, without enough air, it just isn't going to burn? I think I may have just answered my own question."

    HIM: "Yes, you answered your own question. However, if you inject liquid propane along with liquid nitrous, thru a NitrousOxideSystems nozzle, or eight of them plumbed into the intake manifold - one above each intake valve - then you might have a VERY INTERESTING engine."



    Casey
     
  5. Diesel Dan

    Diesel Dan 1/2 ton status

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    then you might have a VERY INTERESTING engine."



    Or Can we say that you HAD a very interesting engine! /forums/images/graemlins/shocked.gif
     
  6. imiceman44

    imiceman44 1 ton status

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    Hey dan, why are you turning blue? Is it too much propane?
    Well I don't have time to look it up now, but I was on a website 3 weeks ago and they had a diesel Turbo, with both propane and nitrous.
    He is right it works and no the engine will not explode.
    The nitrous will cool it down and they get ridiculous amounts of torque, but they were racing this engine.
    I also read about the same additions in one of the 4wd magazines I get.
    If I get some time this week I will look them up and post on here.
    As for a home brew for propane injection, do a search on here, I had that question 3 weeks ago, and someone posted a really helpfull message with all the hardware details and prices.
    I am installing it on my turbo'd diesel soon.
     
  7. imiceman44

    imiceman44 1 ton status

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    OOPs different Diesel Dan.
    /forums/images/graemlins/rotfl.gif /forums/images/graemlins/rotfl.gif /forums/images/graemlins/rotfl.gif
    Man that space isn't enough difference, well I guess the blue and orange is enough difference, don't pay your membership, /forums/images/graemlins/thumb.gif /forums/images/graemlins/thumb.gif
     

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