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E85 or meth?

Discussion in 'The Distillery' started by Klaus, May 4, 2018.

  1. GodStang

    GodStang Well-Known Member Established Member

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    Remember using Meth on a Centri or a Turbo is a bit different than using Meth on a TS/Roots blower. On a turbo or Centri you can spray post compressor to cool the intake air after it is compressed getting decent gains. On a TS/Roots spraying the intake system before the blower is almost totally nullified after it enters the blower and it is compressed heating the intake air back up. The only decent way to do Meth on a TS/Roots is spraying after the blower usually by installing ports in the lower intake manifold. On a TS/Roots blower E85 is really the better way to go.
     
  2. lshin037

    lshin037 Member Established Member

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    Location:
    Atlanta
    Meth is great for octane boost and IAT cooling. My system has been in for about 3 years. It wasn't tuned for meth since my tuner wont tune for meth so I used it as a safety net.

    With meth systems, you have to keep checking to make sure its working. I pulled out the nozzle and ran the system to make sure it's spraying right. Did this 3-4 times a year. Im glad I did this because the nozzle got corroded and it was just dripping. I checked the lines and all the connectors were corroded. The flange inside the AN fittings were made of aluminum and that's where all the rust was coming from. I changed all the lines to ones that had brass fittings and hasn't happened since.

    A return fuel system was installed and made the switch to E85 a few weeks ago. I still use the meth for IAT cooling since E85 cant do that.
     
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  3. Klaus

    Klaus Well-Known Member Established Member

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    minnesota
    Thanks for followup on this. I opted for door #3: blower upgrade. May switch to return style over the winter although I am cautious about e85 as my car is driven so little. Good point on not tuning to meth and using it only as safety net.
     
  4. SVTdreamin04

    SVTdreamin04 What's a "Termi"??? Premium Member Established Member

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    Well, the good thing....I guess, about 85 is that you will empty a tank of it quicker than you can blink. So, it won't take very long to get it low. Buy you a 5 gallon jug to have on hand and treat it with a stabilizer. Or, you could do like I did and buy a 50 gallon tank with a hand pump.


    Sent from my iPhone using Tapatalk
     
  5. SheepDog

    SheepDog Premium Member Premium Member Established Member

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    Not to revive a dead thread, but I had one of the nightmare situations that others have mentioned happen to me. I had a Mazdaspeed3 and was spraying meth just for the cooling benefits, not relying on it for fuel headroom, anywho, one night the controller decided to fail and the system sprayed a gallon of water/meth into my intake plumbing and intercooler. I was unaware of this, and when I went to start my car it hydro-locked the engine and bent a rod. This was a reputable name brand kit, and had worked perfectly for 2 years before the failure. Return style system and E85 is the only way to go IMHO.
     
  6. KEVINS

    KEVINS Active Member Established Member

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    That sucks! Does the kit come with a LED indicating pump is running?

    ks
     
  7. SheepDog

    SheepDog Premium Member Premium Member Established Member

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    I
     
    Last edited: Oct 5, 2018
  8. SheepDog

    SheepDog Premium Member Premium Member Established Member

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    Yes it did, however I was asleep when it happened. Car was off, keys were on my dining room table. The controller short circuited internally and energized the pump. Bad day. After that, I put a manual check valve inline and would always close it after I put the car in the garage. Water/meth works great, until it doesn't
     
  9. lshin037

    lshin037 Member Established Member

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    Im guessing you had it wired straight to the battery? My AEM controller's power is from a switched power source.
     
  10. SheepDog

    SheepDog Premium Member Premium Member Established Member

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    That particular controller (Devil's Own) used constant power from the battery, and would complete the circuit through ground when the ignition was switched on. I also used an AEM controller afterwards and never had that issue again.
     

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