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  1. #1
    slydogge's Avatar
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    3 deg keyway and 150psi comp ok on 93oct?

    Hey guys I have a local here telling me that its fine to advance the timing 3 deg and run up to 150psi cyl. pressure and still run 93 octane fuel? I know the new 10% ethty fuel sucks and thats all we have around here. So in a nutshell

    Can you get away with 93oct fuel that contains ethy while running 150psi and 3 deg advance?


  2. #2
    305coco's Avatar
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    3* degree keyway and 150-155 psi is a very popular combination..
    and yes you'll be just fine with 93 oct, thats what i run and most gas stations in my area have 10% ethanol

  3. #3
    slydogge's Avatar
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    thanks for the input I was thinking it would be fine but I could not find anything when searching to make sure.

  4. #4
    WATER WOODY's Avatar
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    Thats perfect!

  5. #5
    txgp1300r's Avatar
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    I have been running 10% ethonol and 150 psi w/3 deg key for a few years now on super unleaded with no problems......I even ran the mudbug swamp gas at gro's (not sure what it is) you should be just fine.

  6. #6
    mike1706's Avatar
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    sorry for saying this but what is the 3 deg keyway on a gp1300r. What does this do on the motor and what does this performance to get more mph. thank

  7. #7
    L Carlson's Avatar
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    Quote Originally Posted by mike1706 View Post
    sorry for saying this but what is the 3 deg keyway on a gp1300r. What does this do on the motor and what does this performance to get more mph. thank
    ReRead the first post! It will advance your timming curve.

  8. #8

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    Quote Originally Posted by mike1706 View Post
    sorry for saying this but what is the 3 deg keyway on a gp1300r. What does this do on the motor and what does this performance to get more mph. thank

    Its the keyway on the crank that holds the flywheel from spinning. An offset keyway advances the timing.

    Better accelleration, and about 50-60rpm on top which equals more mph.

  9. #9
    slydogge's Avatar
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    wow I thought I posted that its a 1300. Yep its a fuel infected 1300

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