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  1. Reserector_

    Building a '93 Caravelle 1750 Classic Bowrider

    According to that calculator, the engine is turning around 4750 RPMs. Either that, or the final drive ratio is 1.28:1 LOL Earlier in the build I turned the input shaft and counted the revolutions of the output shaft and estimated 1.88:1 That was based on a 17 spline output shaft rotating...
  2. Reserector_

    Building a '93 Caravelle 1750 Classic Bowrider

    I also have one of these on the lower unit. I don't think it's necessary. I wonder how much drag that creates?
  3. Reserector_

    Building a '93 Caravelle 1750 Classic Bowrider

    The highest I recall was 34 on the gauge. 33 on GPS. Here is a screen shot from the video. Looks like just over 33MPH on the gauge at 3,250 RPM The video is posted up above in a previous post. It SOUNDS about right for that reading.
  4. Reserector_

    Building a '93 Caravelle 1750 Classic Bowrider

    I agree. It's fast enough for the small lakes in my state. I just don't want it lugging. Yes, I finished the crack repair with the Lock-n-stitch. It worked out well. That adapter plate is interesting. Too bad it goes the wrong way for my situation. But it has me wondering about the "High...
  5. Reserector_

    Building a '93 Caravelle 1750 Classic Bowrider

    That's what I have, the 1.84:1 There may also be a power (engine) issue, but I don't want to get ahead of myself. You see, it is a 1982 block and head (large ports on the head) with a '93 manifold. (Smaller ports) There is a bad mismatch that surely interferes with flow, but to what degree, I...
  6. Reserector_

    Building a '93 Caravelle 1750 Classic Bowrider

    It should be around 4,400 or so, as you say. Without knowing the HP and torque graph for the GM 3.0, I can only assume that I am running on torque at this point. I expect the HP to increase beyond torque at some point and get me past this plateau if I can get the RPMs up. It is a '93 OMC Cobra...
  7. Reserector_

    Building a '93 Caravelle 1750 Classic Bowrider

    So it seems that the boat runs at around 33-35mph with a few different props; 19P, 17P and 15P a slightly different diameters. The only thing that seems to change is the rpm. This last time out, I stepped down to the 15P and it gave me 34MPH at around 3,500 RPM. My next prop to try is a 13P...
  8. Reserector_

    '65 Lyn Craft Seabreeze 1500 Sport Runabout

    I'm getting excited!
  9. Reserector_

    88 Capri Restoration (Splashed 08/2022)

    I got out once before the heat got bad. So many 100° days this summer. BUT, she's running great, and I have two more props to experiment with. Planning to run right on through November. Hoping to get a few more outings in before the long three weeks of winter hit.
  10. Reserector_

    '65 Lyn Craft Seabreeze 1500 Sport Runabout

    Have you splashed her yet?
  11. Reserector_

    '65 Lyn Craft Seabreeze 1500 Sport Runabout

    OH, man!!! Great photo! All you need to do now is take that same shot, but with a different background, such as open water. ;)
  12. Reserector_

    '65 Lyn Craft Seabreeze 1500 Sport Runabout

    Stunning!
  13. Reserector_

    '65 Lyn Craft Seabreeze 1500 Sport Runabout

    We need a splash this year, and I think you're the guy! :)
  14. Reserector_

    88 Capri Restoration (Splashed 08/2022)

    Sorry to hear that you are struggling. But I am glad to hear that you are still advancing the project. Mine is ready to use, but the heat lately had been brutal, so I will wait for the temps to drop a bit. I admit that I have not been reading up on the projects in this forum like I used to...
  15. Reserector_

    Building a '93 Caravelle 1750 Classic Bowrider

    New prop to try. This one a 15P x 15 1/2 It is about an inch lathe in diameter than my other two props, but if it fits, it ships. I started with a 19P, then a 17P and now a 15. The boat should leap out of the water on launch, now. Lol. I figure the extra diameter will reduce slippage...
  16. Reserector_

    Building a '93 Caravelle 1750 Classic Bowrider

    I will likely sell the 19. In the end, all I need is one prop that works well, and a runner-up as a spare.
  17. Reserector_

    '65 Lyn Craft Seabreeze 1500 Sport Runabout

    She's really looking good!! I like the clear coat. The trim looks fantastic, as well.
  18. Reserector_

    Building a '93 Caravelle 1750 Classic Bowrider

    The 17P prop was an improvement over the 19P. Slightly better holeshot, slightly higher speed, and slightly higher rpms. Rpms came up around 300-ish from what I can see in the videos. Based on that, I just ordered another used OMC prop. This time it will be a 15.5 x 15P (3 blade alum.)...
  19. Reserector_

    Building a '93 Caravelle 1750 Classic Bowrider

    Here's another short video clip that I like.
  20. Reserector_

    Building a '93 Caravelle 1750 Classic Bowrider

    Here is the video from today.
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