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  • #16
    These guys are local to me and I've used them in the past for custom cams.
    They also know they're stuff on marine cams.
    Searching for a Performance Camshaft Manufacturer? Camcraft is a full service Camshaft grinder, offering new and reconditioned camshafts. Click here for info.
    Richard
    78 20' cuddy
    2004 pcm 351 HO FWC
    BW 1:1

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    • #17
      Karen, what engine do you have?
      1988 26' cuddy
      1975 20' open
      16' Sandpiper
      14' Certified Fiberglass

      Comment


      • #18
        Ludicrous speed? Where did I hear that before?
        Mark
        1990 26’ open 351W Indmar
        1987 30’ Blackwatch twin 351W Crusaders (sold)

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        • Fisherlady2
          Fisherlady2 commented
          Editing a comment
          Think 'Space Balls'.... Lord Helmut....

        • Mako2
          Mako2 commented
          Editing a comment
          Musk’s favorite movie. He talks about the movie and Ludicrous speed often.

        • GREGK
          GREGK commented
          Editing a comment
          Take your Ludicrous speeds, Jerry wants Plaid, Plaid is faster.

      • #19
        Originally posted by Quik Fix View Post
        S. rebel. Thats what I'm talking about. What has been done to your 383? What boat do you have, exactly. Tower, enclosure, outriggers, etc. I would love to cruise at 25 Knots, or even 25 MPH. Positive proof it can be done. I actually had a long talk at the engine shop today. Take my 383, FI, aluminum heads, custom grind cam, higher compression and I will have what I want. My 351 is running perfectly so I won't make the switch til winter, but its going to happen.
        Fairly plain 383 with a 600cfm Edelbrock carb, i stripped the bottom over the winter and barrier coated a long with new Pacifica plus bottom paint. I have a over built aluminum hard top that is not the lightest or most aerodynamic thing. There is 600’ of 1/2 rode in the bow along with a few hundred lbs of tackle and tools on board, i do not have any canvas on the boat and there is a set of 18’ Lee jr wishbone style riggers Click image for larger version

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        1984 26 Cuddy- currently under construction
        1977 20’ Cuddy- SOLD

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        • Fisherlady2
          Fisherlady2 commented
          Editing a comment
          Beautiful!

        • S0uthernrebel78
          S0uthernrebel78 commented
          Editing a comment
          Thank you There was a lot of hard work this spring, coming up this winter is a full redo of the topside

      • #20
        Except for the enclosure and the tower, the same boat. With my 383 in my 26 I ran 30 MPH wot. Cruise was about 22 and that was most likely at 3000 RPM. I'm going with the aluminum heads to get the higher compression and burn the 93 octane fuel. Longer burn, longer push, more power. Also less weight. FI also as long as I'm doing it. No tuning and carb guys are hard to find. Also better fuel economy. Just leave the cam to the engine builder. Thats what he does. I told him what I want, he says he can deliver. Will have it dynoed. Bringing him my engine this week.
        1988 26' cuddy
        1975 20' open
        16' Sandpiper
        14' Certified Fiberglass

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        • #21
          I just ran 48 miles round trip and trolled for 41 miles with 3 people and all my gear plus 250lb of ice. The average speed running was about 22knots at 3-3100 rpm and trolling was around 5knots, ocean conditions were 3-5’ ground swell from Isaias total fuel burn for the day was 35 gallons. If i remember correctly 26 gallons for running and 9 gallons for trolling
          1984 26 Cuddy- currently under construction
          1977 20’ Cuddy- SOLD

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          • #22
            Thats more than I burned. I think you are into the secondaries more than I would have been. I cruised at 22 MPH and burned 9.5 gph. We will see. I need an engine for my PH project anyway. My 351 will go there.
            1988 26' cuddy
            1975 20' open
            16' Sandpiper
            14' Certified Fiberglass

            Comment


            • S0uthernrebel78
              S0uthernrebel78 commented
              Editing a comment
              Being I am currently over wheeled I know the motor is burning more fuel than it should, Im hoping the wheel i am having worked up now will be better and allow the motor to really run as it should. I’ll post my track and the data for the last trip

          • #23
            Originally posted by Quik Fix View Post
            Karen, what engine do you have?
            Chevy 5.7 FI, PCM conversion. 330 hp. Excalibur 330
            Last edited by Fisherlady2; 08-12-2020, 08:18 AM.
            Karen
            Punxsutawney, Pennsylvania
            1986 Shamrock H/T with RWC 330 hp PCM, dual hydraulic helm
            1992 Mako 211CC w/Mercury Optimax 175
            3 other smaller OB boats and a trusty old canoe...

            Comment


            • #24
              Jerry
              talk to your guys about an LS. That’s what those 600HP egg beaters have. The LS platform stock, out of a junkyard with China turbos are holding together with 10 psi boost pushing out some great HP. Google them.
              Just wishin', and hopen', and dreamin'

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              • #25
                Originally posted by Fisherlady2 View Post

                Chevy 5.8 FI, PCM conversion. 330 hp
                I think they are 5.7’s. That engine pushed my 246 at 31knots wot.
                Just wishin', and hopen', and dreamin'

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                • Fisherlady2
                  Fisherlady2 commented
                  Editing a comment
                  Yep, you are correct, wrong vehicle in my head when typing. It is the 5.7, with the PCM Excalibur conversion

              • #26
                GM engines turn up a lot more than my 351. The faster you turn the prop, the faster ya go.
                1988 26' cuddy
                1975 20' open
                16' Sandpiper
                14' Certified Fiberglass

                Comment


                • #27
                  I know when we repower (which should be in 4 or 5 years) I am looking for the same or very similar engine. Very happy with it.
                  Karen
                  Punxsutawney, Pennsylvania
                  1986 Shamrock H/T with RWC 330 hp PCM, dual hydraulic helm
                  1992 Mako 211CC w/Mercury Optimax 175
                  3 other smaller OB boats and a trusty old canoe...

                  Comment


                  • #28
                    also I ran another 9 miles before i fueled the boat up the next day so it was really 90nm total burn of 35 gallons
                    Click image for larger version

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                    1984 26 Cuddy- currently under construction
                    1977 20’ Cuddy- SOLD

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                    • GREGK
                      GREGK commented
                      Editing a comment
                      Ed
                      I think Jerry wants your secret on record 67 kts. How stable was she at that speed? LOL

                    • S0uthernrebel78
                      S0uthernrebel78 commented
                      Editing a comment
                      That wasn’t on the Shamrock haha, think I accidentally turned on the track one day in the truck

                  • #29
                    Originally posted by Pedlyr View Post
                    I would look at the prop and gear. With a power increase you might have to change a few things. Now you get into prop clearance, shaft size, and reduction ratios as well.
                    Is there a formula for all of that Ed?
                    1980 pilot house 351
                    1988 260 predator 408

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                    • #30
                      Surplus gas turbine and an Arneson drive or a couple of sheets of plywood for the transom and 2 627 Seven Marines

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