Sundancer 268 prop?

Discussion in 'Sport Cruisers' started by AJ Heuvel, Apr 7, 2021.

  1. AJ Heuvel

    AJ Heuvel New Member

    6
    Mar 21, 2021
    Nanaimo BC
    1989 sundancer 268
    Single 7.4 454 w/bravo 3
    Hi there just bought at 89’ 268 with 7.4 454. I was curious what size and pitch prop people are running to maximize fuel and speed. TYI
     
  2. Pirate Lady

    Pirate Lady Well-Known Member

    Jun 2, 2020
    Chesapeake, Middle River
    91 250 Sundancer, gorgeous, no you can’t buy it.
    454 Bravo 1.
    Had an 89 268. Don’t remember. Long time. Mine was factory stainless.
     
  3. Dave - M

    Dave - M Active Member

    137
    Aug 29, 2018
    1990 270 Sundancer
    7.4 Mercruiser
    I put a stainless mirage on my '90 270. 15.5 x 17 if I remember correctly, replacing a 14 x 19 aluminum which was pitiful. I'm very happy with the performance.
     
  4. Lazy Daze

    Lazy Daze Well-Known Member TECHNICAL Contributor GOLD Sponsor

    Apr 21, 2009
    PA
    Various
    Various
    Your signature mentions that you have a Bravo III drive. That's going to be a VERY costly endeavor to change those props. Unless the current performance is WAY off, which is unlikely, it will most likely take you a long, LONG time to recoup (in fuel savings) the money you spent on props.

    But, before you even consider changing props, use the boat for a while. Do not consider changing props until you get quite a bit of time behind the wheel.

    Also, what's your current performance like? GPS speed and max RPM fully trimmed out.
     
  5. Getaway

    Getaway Well-Known Member SILVER Sponsor

    Oct 13, 2010
    Bay City, Michigan
    1998 290DA Sundancer
    Lowrance electronics, Fishhawk, Scotty Downriggers
    BoatWheels Tri-Axle Trailer
    Single big block 454 MPI Mercruiser engine and Bravo III outdrive.
    Best performance I could get was the 16x16 aluminum prop. Mine was an '88 with the 454 and Alpha drive.

    Top speed was 32mph.

    Yours must have been converted to the Bravo III. I believe the Bravo I came standard on the 89's. I'm not sure which prop would work best for you with that setup.
     
    hughespat57 likes this.
  6. hughespat57

    hughespat57 Active Member

    406
    Sep 25, 2016
    Rock Hill, SC
    300 Sundancer 1994, trailered tri-axle LoadRite roller
    Mercruiser 5.7 260HP Alpha One Gen II, twin
    Agree with @Getaway
    Are you sure its a B3? the B1/B2 are still a "Bravo" but a single prop, the B3 has the dual propellers.
    The B1 for your year was a 17" Mirage @ 4600 RPM WOT

    According to the Sea Ray Prop charts the first year B3 were offered with a 7.4 was in 1993 on the 270WE/DA that called for a 22x22 @ 4600 RPM WOT
     

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