Water / Meth injection

Engine, Trans & Driveline

  1. HEMI-ITIS

    HEMI-ITIS STREETER FBBO Gold Member

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    I would like to know if any w/m users were able to satisfy a need for 112 octane with pump gas & w/m injection.
    I find my boosted carbs really like to spin faster,the cars are so much responsive when the blower is spinning faster and I prefer not to have to mix race fuel.Higher boost levels I would be using straight c12 on to 14 lbs of boost.
     
    Last edited: Oct 11, 2018
  2. garrett1308

    garrett1308 Well-Known Member

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    I run water injection on my 81 turbo trans am. (got tired of buying methanol, TTA sucks the gallon tank down quick). Used to get detonation at 7-9psi and sometimes lower when flooring it on the highway. Now I push 15 pounds of boost no problem, other than the 15 being way more than the factory head gaskets could handle. Going higher after replacing them.

    No idea what octane rating the car is at with the WMI spraying. I always run it on 93 octane
     
  3. HEMI-ITIS

    HEMI-ITIS STREETER FBBO Gold Member

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    What is your static CR?

    Next "Q" is 8 lbs of boost from a roots the same effective CR as turbo or centrifical....

    3.6.14 025.jpg
     
  4. 5.7 hemi

    5.7 hemi FBBO Gold Member FBBO Gold Member

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    Window cleaner can be used.
     
  5. HEMI-ITIS

    HEMI-ITIS STREETER FBBO Gold Member

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    Windshield washer fluid or boost juice might have a higher meth content which in turn might increase the octane value......
     
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    • 5.7 hemi

      5.7 hemi FBBO Gold Member FBBO Gold Member

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      That’s what I meant. Damn brain not firing properly!!!!
       
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      • Fran Blacker

        Fran Blacker FBBO Gold Member FBBO Gold Member

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      • HEMI-ITIS

        HEMI-ITIS STREETER FBBO Gold Member

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        I knew what ya meant......plus,,,your disabled:thumbsup:
         
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        • HEMI-ITIS

          HEMI-ITIS STREETER FBBO Gold Member

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          Shipped,it would as much as race fuel in 5 gallon pails.
          I would like to be able to street drive with an effective CR of maybe 13:5:1 or 14:realcrazy:


          With pump gas and some kind of injection ,,,,but NO nitrous:popcorn2::fool:
           
        • garrett1308

          garrett1308 Well-Known Member

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        • RF2

          RF2 FBBO Gold Member FBBO Gold Member

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          Devils own premix water methanol is $28.18 per four gallons.
           
        • furryfrog

          furryfrog Well-Known Member

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          I use diluted windshield washer fluid, 50/50, guessing about 15% methonal. I run a blow through carb on my turbo system so the higher the meth number the more afr's are affected, so I tune for what I mix. A lot of water meth manufactures recommend running straight water if using a carb. Its the water that provides anti detonation, the meth content drops afr's. Ricers running 30lbs of boost will up the meth content if there spark plugs misfire. Easy to buy windshield washer fluid when buying gas.I have used windshield washer fluid for water injection, on about 4 different cars in the last 15 years. Not sure on the octane rating, but I helped a friend put a supercharger on a bmw 320i. 11 to one CR, had detonation at 1/2 psi of boost on 94 octane, after water injection we got to 11 psi and had to back it off cause the clutch was slipping. he spanked on the car for a couple years until his girlfriend crashed it. I think I"m running about 750cc/min worth of nozzles on my 440, with about 6lbs of boost, its more nozzle than I need to run.
          I know snow performance advertises 116 octane plus with there system, I don't have the experience using fuel with that high of an octane, but my guess is they are understating the capabilities of water meth.
           
        • furryfrog

          furryfrog Well-Known Member

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          In the past, I have bought straight methanol in the paint section at the local hardware store, to mix 50/50 blends with water, One car I had, I even had the water meth intake hooked into my windshield washer reservoir.
           
        • HEMI-ITIS

          HEMI-ITIS STREETER FBBO Gold Member

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          It's so hard to believe they can satisfy the demand for 116.That is the reason for my post!I can go to 13 lbs on 112 and then require 116 above 14 lbs.So I doubt I will ever need 116.My heap has been 9.3 @ a click under 147 with 6 lbs through the exhaust being CHOKED!
          When I increased the boost to 10 lbs it separated one of the slip tubes in my left header.So then we put dumpers on.My fat bitch weighs 3700 with me in it.



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          • Fran Blacker

            Fran Blacker FBBO Gold Member FBBO Gold Member

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            Popped a header slip tube, and you have 4" exhaust?
             
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            • moparsquid

              moparsquid Well-Known Member

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              tried e-85 or a mix off?
               
            • HEMI-ITIS

              HEMI-ITIS STREETER FBBO Gold Member

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              I have mixed at 7 lbs in the street,few test recordings i the street checking AFR and boost.

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            • HEMI-ITIS

              HEMI-ITIS STREETER FBBO Gold Member

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              Yes,the header tubes are 2 1/8 with a 4 inch collector an "X" pipe Hooker and tail pipes

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            • hangn0ut

              hangn0ut Well-Known Member

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            • Fran Blacker

              Fran Blacker FBBO Gold Member FBBO Gold Member

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              Just did a quick search, think it could be found cheaper.