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  1. #1
    Join Date
    Aug 2011

    1997 180 w/ 5.7 Prop Question

    As title says, I've got a 97 180 Islander with a small block 350 (5.7L) in it.

    I've currently got a 19p Rapture which is pretty good for pulling/hole shot, but leaves my top end a little low. I'm pushing about 4900rpms WOT and hitting right at 50 on GPS.

    I'm looking to drop the RPMs just a tad (or keep them the same, even), but bump the top end up. I figure I'll use the 19 for water fun and something else for speed/cruising. I've been looking at both the LaserIIs and the Mirage+'s, but am unsure of using a 21 or 23p.

    Thoughts, or am I way off base?


  2. #2
    Join Date
    Jun 2011
    Your best bet would be to try a Laser II in 21" pitch. That would probably put your engine in the 4500-4700 rpm range. I'd guess you might see 52 mph but not much more. The Mirage props with their larger diameter take a little more torque to swing than the Laser.

  3. #3
    Offshoreonly Advertiser Offshoreonly Advertiser bbladesprops's Avatar
    Join Date
    Jun 2003
    Princeton, Wisconsin



    Call us if you want to test afew propellers before you buy something.
    We can adiscuss the current setup and maybe offer some options.

    Brett Anderson / BBLADES Professional Propellers

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