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  1. W

    Trying to determine proper engine/ trans/ prop pairing

    If I can't get the owner to pull the boat out so we can look at the props and bottom, I will walk away and look elsewhere. You're right. There are so many boats for sale and have been for sale six months or longer. Thanks for your help.
  2. W

    Trying to determine proper engine/ trans/ prop pairing

    According to the owner, WOT and staying on it turns 4K. That's not enough. The specs from the other post are correct. So it's not propped right? But the 1:1 gearbox is good? I guess I'm asking if the gearbox can stay and I just experiment with the props? If my wife didn't like the large...
  3. W

    Trying to determine proper engine/ trans/ prop pairing

    Hey MD 2 The owner got back to me. 3000 rpm @ 17 knots (not mph as I thought-- GPS was on knots) WOT 4000 rpm @ 25 knots he recalls?? (Is that near optimal with twin 330 hp??) Prop size could be?? 13 12 and the gearbox is definitely 1:1 Where the boat is docked in Edenton NC is largely...
  4. W

    Trying to determine proper engine/ trans/ prop pairing

    And anyone involved with the company back then is probably long retired or dead.
  5. W

    Trying to determine proper engine/ trans/ prop pairing

    Thanks for that. Now I'm waiting for the owner to give me the WOT speed and what the RPM are. Chris Craft is offering zero assistance. They don't respond to any requests. Before I go back for another sea trial in better weather, I need to know if this current setup is worth pursuing. I'll...
  6. W

    Trying to determine proper engine/ trans/ prop pairing

    Correct. It was stated by the owner it will top out at 23. I'm not going to explain the days events. All I asked was with the information I gave, does that combination seem optimal.
  7. W

    Trying to determine proper engine/ trans/ prop pairing

    It's fiberglass. Captain's Choice 5.7 MPI Engine Displacement: 5.7L/350 c.i.d. Rated Power:* 330 hp@5000 rpm Cruising RPM: Idle-4000 rpm Max RPM: 4800-5200 rpm Fuel System: Multi-Port
  8. W

    Trying to determine proper engine/ trans/ prop pairing

    It's 28 feet and an 11 ft beam, 30" draft , dry weight at 8000 lbs, 17 mph at 3000 rpm. We never went WOT.
  9. W

    Trying to determine proper engine/ trans/ prop pairing

    I sea trialed a 1972 Chris Craft Commander Sport Express. It has twin 2015 Captains Choice 330 hp and 1:1 trans. Not sure about prop info. The boat cruises at 18 mph and tops out at 23. That seems dismal! Does anyone have knowledge about the proper pairing of transmissions and prop size for...
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