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  1. #1
    PWC Addict Magnummmmmmmmmm's Avatar
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    Sunoco supreme 112 fuel in 4tec

    Is this stuff safe to run in a 4tec 260? Should it be mixed with 93 or can it be run %100? I'm chasing numbers and want to run more timing. Btw this fuel is LEADED. Thanks.


  2. #2
    Branden's Avatar
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    there are no 02 sensors to kill so there should be no issue. whats done to your ski? If you are mostly stock i dont think you will gain very much to be honest.

  3. #3
    ecpChris's Avatar
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    If it is stock or close to, it would be a waste running that fuel in it. What mods are done to it?

  4. #4
    PWC Addict Magnummmmmmmmmm's Avatar
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    Mods are:
    4" air
    TDR waterbox
    riva thru hull
    riva ss grate
    r&d pump seal
    12.5/18 solas
    vtech

    im just looking to run a couple degrees more timing without fear of deto. It isnt something i want to do all the time. I know the fuel is overkill but its the only race gas near me.

    Plus, who doesnt want to smell race gas every once in a while lol

  5. #5
    Branden's Avatar
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    lol yea i doubt you will realize a gain but if you enjoy the smell and have the money to burn go for it the only time when fuel like that starts to benefit you is when you have really strung out the limits of pump gas. a big charger or a turbo making some big boost would be where that fuel would start to shine.

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  7. #6
    Mod less, ride more! troyheb's Avatar
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    IMO, I would not try to gain any speed through timing, even using higher octane.

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  9. #7
    Branden's Avatar
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    Quote Originally Posted by troyheb View Post
    IMO, I would not try to gain any speed through timing, even using higher octane.
    i thought i was the only one lol

  10. #8
    PWC Addict Magnummmmmmmmmm's Avatar
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    I could tell a difference between 34 and 36 degrees. I think it pulls harder.

  11. #9
    Branden's Avatar
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    timings sole job is to light the fire, nothing more, nothing less and to a point a motor will pick up power until you reach a point where it starts to nose over and beyond that you will melt shit. your motor may like the extra timing, but my goal when i tune a motor is to run the least amount of timing i can that makes the motor happy. In other words if i add a degree and it picks nothing up in terms of MPH or power i will back it off a degree or two. Efficiency is what ultimately makes power and i would rather throw a bigger charger or throw more boost at it and pick up 3 mph than to try and cram that 1 extra degree of timing in the thing to pick up .02 mph. just my opinion.

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  13. #10
    boost junkie skidoochris's Avatar
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    big numbers come from high rpms! not timing

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