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Post your fuel burn #'s and

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  • Post your fuel burn #'s and

    updated 12/26/07 new entries are highlighted




    Pete[br]MaColAh III [br]93\' 261b[br]HO 200 hp ETEC\'s[br]Cape Cod[br]

  • #2
    Here's some from today. * = unknown (stroke)

    20C, 1985, 150hp, Evinrude, 1985, 2, 15 x 17, 4000, 3.0, 30 mph, 5800 rpm, 1.8 mpg, 38 mph
    1978 Mako 25 - Blind Hog
    1985 Mako 20c - sold
    Fort Walton Beach, FL
    https://forum.classicmako.com/forum/...og-bottom-time

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    • #3
      1990 261 t/200 yams (carbed)

      4000 RPM swinging ?X17 stiletto's...29.7 knots @ 20 gph
      1990 261 T/2001 200 HPDIs[br]Basking Ridge/Mantoloking NJ[br]

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      • #4
        Pete (Sorry !) my pitch is 21.......1992 motor. Ya might want to add a prop manufactor column, as is seems boats behave differently with different brands. Mine is OMC SST

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        • #5
          No problem adding the prop manufacturer or anything else you guys would want to compare.
          Pete[br]MaColAh III [br]93\' 261b[br]HO 200 hp ETEC\'s[br]Cape Cod[br]

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          • #6
            19983 M224, Yamaha F225, 17M SWS Prop, 4,000RPM - 9.5 GPH, 33 MPH
            Prop Blast[br]Mako 224, F225[br]Tampa, FL

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            • #7
              1983 224, Armstrong 30" bracket, twin Suzi 140 4-strokes - (BOTH are std. rotation), 19 pitch props.

              MPG @ 4300rpm (30-33 mph depending on trim & loading) is approx. 2.3 mpg (@ 3700 ft elev.)

              Max RPM = 5800 (@ 3700 ft elev.)
              Working for a livin\' is HIGHLY Over-Rated...[][br]

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              • #8
                Hmmmmm! I might not be far off with these 18in pitch's I have.

                More weight on the boat, more sail area and counter rotator.

                But I do have less deadrise.

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                • #9
                  KT-

                  Those are the original 1990 yams...

                  Wart...those 18" wheels are suzi's?? Those suzi markings make absolutely no sense...their pitch always seems to be way off for some reason.
                  1990 261 T/2001 200 HPDIs[br]Basking Ridge/Mantoloking NJ[br]

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                  • #10
                    Yep, Their Suzzy wheel's. I've heard that in the past. The Suzzy wheel's are not consistant with the pitch from other company's.

                    It doesn't make sence, but that's what they say.

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                    • #11
                      I just had a thought.... it seems we are looking for some sort of a table-based output of raw data. I might be able to hack a quickie database program next week to keep track of these numbers via a web link.

                      I'll see what I can conjure up.

                      -Pat.
                      18ft MonArk tri-hull: 140HP Mercruiser Alpha One - still in pieces...to be continued[br](I know it\'s not a Mako, but hey, its mine!)[br] Time\'s fun when you\'re having flies![br]president/hostmaster:[br]P.Ring Technologies[br]Cornerstone IT, LLC[br]LOUISIANA WEB HOST, LLC.[br]CompTIA Certified Professional A+/Network+ // Microsoft Registered Partner

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                      • #12
                        Pat, whatever you think is best/easiest but what i'm doing now only takes a few minutes to update and post. Now i just have to get out in my boat and get some #'s.
                        Pete[br]MaColAh III [br]93\' 261b[br]HO 200 hp ETEC\'s[br]Cape Cod[br]

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                        • #13
                          ktug...

                          Seems I forgot to list WOT speeds.

                          47-49 MPH at full/hvy/moderate loadings, and 42-44 MPH at lighter loadings, Which I suspect is a result of some minor cavitation issues I've yet to get corrected at the lighter loadings.

                          Also, the MPG figure I gave is a tad off. After recounting our trip last night while unloading all the gear, it seems I forgot to include the miles from one full day of running, so after refiguring that day, it's really closer to something like 2.9 -to- 3 MPG, albeit that also includes a BUNCH (something like close to 6 hours) of idle/trolling speed time.

                          OB1

                          PS: I'm running OEM Suzy alum 3-blade (19 PITCH x 14.25" Dia.) props. I originally tried to get by with Suzy's 3-blade alum 21's, which worked fine @ sea level and up to 1700 ft elev., (trying the 21's was all before I added the armstrong bracket, and enclosed the transom), but the motors weren't strong enough to pull the 21's @ 3700 ft elev., so I was forced to the 19's.) Am giving some consideration to trying some SS 19's, but haven't got enough of the rest of the minor things sorted out yet, so that will have to wait.
                          Working for a livin\' is HIGHLY Over-Rated...[][br]

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                          • #14
                            1990 Mako 260 Walk around

                            2002 Yamaha 200 HP HPDI's

                            4000RPMS, 32 mph, 16 GPH

                            17" wheels
                            1987 Mako 254, 2013 Evinrude ETEC 175\'s (sold to my buddy)[br]1988 Mako 20, 2008 Yamaha 200HPDI (sold)[br]1984 Mako 17, 2005 Suzuki 115 (sold)[br]1981 Mako 21 (sold)[br]1978 Mako 17 (sold)[br]1986 Mako 260 (sold)[br]1997 Mako 232 (sold)[br]Tampa, Florida

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                            • #15
                              quote:


                              17" wheels



                              3X?X17[?]

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