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  • Tuning update!

    Just a quick note to give an update on the FI progress.
    I started using a new device called the romulator. It allows me to tune on the fly so to speak. So now I can have the wife drive the scout down the road while I make continuous adjustments to the fuel and timing. When I get the tuning the way I like it, I just save the file and burn a chip.
    Tonight I got to do my first economy run up the highway with it. Not much just 25 miles up and back. After filling up with gas, the wife set a speed of about 60-65MPH. While she drove I started to advance the timing in the RPM range we were running. Then I adjusted the fuel to compensate.
    Well at the end of the trip we filled back up and I was pleased with the results.

    50 mile round trip
    60-65 MPH
    2000-2200 RPM
    2.7 Gals
    If my math is right that’s about 18.5mpg
    Now even I’m not that optimistic to think you can avg 18.5mpg but if I can come even close to that I will be happy.
    I’m running:
    75 Scout II XLC
    345-125K+ (2nd speedometer)
    727
    3.07 gears
    31” A/T High-Tec recaps at 35psi
    89 350 GM TBI FI

    This scout set in a field for 9 yrs before I found it. It knocks every time you start it when it’s cold and the oil pressure drops to 0 when warm. But it sure does run good and gets the wife to work and home 30 miles each way. Don't know what I can do for big city traffic?

    Just a little update to wet your appetite!!
    Bill USN-1

    COMMITED TO TEACHING PEOPLE THE "PROPER" WAY TO EFI
    HAMILTON FUEL INJECTION
    May be the answer to all your fuel injection needs!
    Learn to do it right.

  • #2
    Men and there toys.

    Any need for it on the Trail rig? Any way to tune at 3 or 4 miles an hour or with the front end pointed at the sky or on three wheels? Ha ha!!!!
    My "Disasterpiece"
    1970 800A 4X4,HFI'd,304,B/W,27,44,3:73,28's.
    The rest are in my 25 year plan!

    My "Ruedh"
    FREE 1972 1110 4x4,V8(?)727,205,44 drum/60/3.54's,small cheap tires.
    LOOOOADS-O-RUST!! Donor body located. Not!! JY owner played the "crusher value" card. : angry:
    NON-working rear window. Need info!!!

    www.northtexasbinders.com

    Comment


    • #3
      Your wife is so cool!

      Anyway that sounds like a great way to tune. After you were done did you notice any difference in driving? Are you just changing certain areas for optimum highway speeds?

      I don't think 18.5 is unrealistic highway mileage under the right circumstances. I have gotten 18 out of mine when it was stock 345 two barrel auto 3:07 gears and a tailwind in the warm summer months. Those gears and tires keeping the RPM down is a big help too! I run about 2800 at 60 with the 4:09s

      Stock photo
      [CENTER]1994 Buick RoadMaSSter Estate Wagon LT1/4L60E. White and Woodgrain Sleeper...PCM 16188051 With SS/V4P/Custom Tune! WOT 12.9 AFR!

      1990 Chevy Suburban Silverado 5.7L 2wd ECM 1227747 HiWay Lean Cruise 18.5 MPG and 12.5 to 1 AFR at WOT!

      1972 IH 1210 Isky Cammed Balenced 345 4 speed PCM 16197427 Project!

      [SIZE=3][B][URL="http://www.gearhead-efi.com/"]GearHead-EFI.com[/URL] EFI Conversions and Chip Tuners![/B][/SIZE]
      [B]May be all you need to know about EFI![/B]

      and I still help local JustIH members (for fun) free! :cool: [/CENTER]

      Comment


      • #4
        I just started tweeking for the hiway spots right now. The bottom end was working pretty good as you know.
        After I got done, I went back in the house and used the graphing function and started to smooth the entire spark curve out the same as I did on the fuel curve.

        I have not been able to run the new chip yet since I was out of time before uncle sam said it was time to leave again.

        Now I have to sit and wait till I get back home to try it out!
        Last edited by Bill usn-1; 11-04-2003, 09:03 AM.
        Bill USN-1

        COMMITED TO TEACHING PEOPLE THE "PROPER" WAY TO EFI
        HAMILTON FUEL INJECTION
        May be the answer to all your fuel injection needs!
        Learn to do it right.

        Comment


        • #5
          Where you be now??? In the states???
          My "Disasterpiece"
          1970 800A 4X4,HFI'd,304,B/W,27,44,3:73,28's.
          The rest are in my 25 year plan!

          My "Ruedh"
          FREE 1972 1110 4x4,V8(?)727,205,44 drum/60/3.54's,small cheap tires.
          LOOOOADS-O-RUST!! Donor body located. Not!! JY owner played the "crusher value" card. : angry:
          NON-working rear window. Need info!!!

          www.northtexasbinders.com

          Comment


          • #6
            I'm on the east coast.
            Havelock, NC.
            Where the hurricane went thru.
            Bill USN-1

            COMMITED TO TEACHING PEOPLE THE "PROPER" WAY TO EFI
            HAMILTON FUEL INJECTION
            May be the answer to all your fuel injection needs!
            Learn to do it right.

            Comment


            • #7
              My sis is in Greensboro. Man do you "hop" a military wing or fly commercial to all these places. Lots of frequent flyer miles?

              Have fun!!!!
              My "Disasterpiece"
              1970 800A 4X4,HFI'd,304,B/W,27,44,3:73,28's.
              The rest are in my 25 year plan!

              My "Ruedh"
              FREE 1972 1110 4x4,V8(?)727,205,44 drum/60/3.54's,small cheap tires.
              LOOOOADS-O-RUST!! Donor body located. Not!! JY owner played the "crusher value" card. : angry:
              NON-working rear window. Need info!!!

              www.northtexasbinders.com

              Comment

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