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  1. 02-26-2009, 12:46 AM #1
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    Any MPG Gains From Meth

    Was wondering did anyone see gains from adding meth?


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  2. 02-26-2009, 08:48 AM #2
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    I know guys with the Cummins diesel Rams claim 2-3 mpg boost, but gas motors would get a smaller gain. I ran water meth on my old Toyota Tacoma 3.4 V6 and mileage was really bad, but at least the spray kept it from destructing.
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  3. 02-26-2009, 11:46 AM #3
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    will be no gain since it is only used at high boost.

    It is an octane booster and intake charge cooler. It only helps to overcome the limitations of a gas engine under heavy load.

    There is no need for it at cruising situations and therefore no gain.

    Don't forget there is a cost to buy the meth and 1-2 mpg will not cover that cost
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  4. 02-26-2009, 11:56 AM #4
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    The only time my meth controller lights up the pump is under heavy load and significant rpm - not gonna see any mileage gains there I'm afraid.

    Kinda cool seeing the green LED come on though...

    Mike
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  5. 02-26-2009, 12:00 PM #5
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    The only gains I saw on my NA motor was it allowed me to run 87 octane on my 93 tune while making long cross country trips where no WOT was needed, it just let me buy cheaper gas.

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  6. 02-26-2009, 12:41 PM #6
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    Hmmm I tell you since my Meth comes on at 3000 RPM and WOT so that is an good indication that my mpg will be steadly going downward at a pretty good rate.
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  7. 03-01-2009, 05:35 PM #7
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    thanks for the info


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  8. 06-05-2009, 06:45 PM #8
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    Quote Originally Posted by MikeEast View Post
    Kinda cool seeing the green LED come on though...

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  9. 06-08-2009, 02:59 PM #9
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    Where can I find low voltage side of primary ignition coil


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  10. 06-08-2009, 03:57 PM #10
    Maistro69
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    Anybody have an IAT sensor mounted where it can see the difference meth makes? How many degrees does it cool the air charge?
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  11. 06-08-2009, 04:49 PM #11
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    Quote Originally Posted by Maistro69 View Post
    Anybody have an IAT sensor mounted where it can see the difference meth makes? How many degrees does it cool the air charge?
    I moved mine up by the air filter a long time ago, but that would be a cool thing to find out about...

    Mike
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  12. 06-08-2009, 06:59 PM #12
    Maistro69
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    I'm not sure very many people actually have them in the right spot to measure IAT's with a blower. N/A is easy but it's a whole new ball game with FI, especially PD blowers because it has to be in the intake itself. I've got my alky kit thanks to Eddie at SHR just curious what to expect in temp reduction
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  13. 06-08-2009, 07:08 PM #13
    351Freak
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    Quote Originally Posted by leveil22 View Post
    Where can I find low voltage side of primary ignition coil
    low voltage side is the 2 wires going into each individual coil.

    the coils use switched ground...so each coil should have 1 wire that is the same color for all coils...and that should be the +12v...the other wire is the switched ground and typically has the better signal for tach pickup...your results may vary...

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