SPEED!

Discussion in 'Prop Shop' started by Bissell, Aug 23, 2010.

  1. Bissell

    Bissell Microskiff.com... Priceless!

    NMZ
    15 hp
    2 smoke
    merc
    i wanna go fast, i dont need to run shallow, i can just poll into the shallow, any idea on what pitch to gain more speed?
    thanks CS :cool:
     
  2. Brett

    Brett > PRO STAFF <

    Sure...pitch all the unnecessary gear in the dumpster.
    The lighter the load the faster you go. Otherwise, buy a bigger outboard.
     

  3. noeettica

    noeettica Well-Known Member

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    Get one of these !  ...

    http://www.youtube.com/watch?v=hm9r1KwCo8Q&feature=related

    http://www.youtube.com/watch?v=FRZ8QrFjlnc&NR=1
     
  4. Bissell

    Bissell Microskiff.com... Priceless!

    thats why i dont think im gunna have anything that needs a battery, but the factory 9x9p alm. prop isnt gunna cut it
     
  5. noeettica

    noeettica Well-Known Member

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    Once you get a baseline go from there ... You will want a stingray to correct porpoising Then perhaps a 10 or 11 pitch prop ...

    Get the cav plate 1.5" above bottom of boat


    after those things are done all that's left is 2 mph and It's elusive and expensive to get ...
     
  6. Flyline

    Flyline Won &quot;Do More With Less&quot; Award!

    U won't get a major difference in speeed with a 15hp motor. The max speed u can get is around 26 mph light load with right propeller. I tried a powertech 3 blade polished 10" pitch stainless steel and it shoot really good with the NMZ.

    If u really want more speed then get a 25.
     
  7. Bissell

    Bissell Microskiff.com... Priceless!

    what does that prop cost?
     
  8. TomFL

    TomFL Well-Known Member

    Spend your $$ on a 25hp.

    You can spend a ton of $$ and lighten the boat all you want to go from 26/27 (and still lose 3-4mph with a passenger) with the 15hp, or sell it, find yourself a 25hp and run 32-33 all day long, and lose 1-2 mph with a passenger.

    In the long run it'll be cheaper and easier.

    -T
     
  9. noeettica

    noeettica Well-Known Member

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    I Don't Think a 25 Hp is a good Idea on a NMZ/Highsider ...
     
  10. Flyline

    Flyline Won &quot;Do More With Less&quot; Award!


    i ran it but id u know how to drive one. check my merc 40 pic on the outboard maintance... hitting 38 MPH with stock with pently of throttle left.
     
  11. TomFL

    TomFL Well-Known Member

    Oh sh*t, missed that one, thought we were talking about an LT here.

    Scratch my last post then, stay away from a 25 on a hi-sider!!! You will lose an eye playing in that sandbox for sure.

    Another option is to look for one of the 18hp nissan motors, which I think were underrated. I had one and loved it, they're very light and are a great match for a 13 or 15 with an experienced pilot. That will push your hull 28 or so with stock prop.

    And they can be had for about twice the cost of a stainless propeller.

    The thing to remember here is just how much time will you be saving once you go faster? If your spot is 2-3 miles away, the difference in time to get there with a boat that's even 5mph faster boils down to a handful of seconds.

    If your run is 15 miles away, it might be worth it. But who's making a 15 mile run in a gheenoe? And it'd be faster, cheaper and easier to trailer it closer!

    -T
     
  12. Bissell

    Bissell Microskiff.com... Priceless!

    i dont think im gunna get a new motor ill just tweek the one i got ;D
     
  13. HighSide25

    HighSide25 Well-Known Member

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  14. Brett

    Brett > PRO STAFF <

    By the time you get done tweaking that outboard,
    you'll have spent enough money to have purchased another one.

    That's ok with me, everyone needs a hobby...  ;)

    Trim tabs...
    Jackplate...
    Cupped stainless prop...
    Port and polish the intake and exhaust...
    Better reeds...

    all for a gain of 3 to 5 mph    ;D

    the best part is, about the time you get done tweaking and spending
    you'll be bored and start looking for your next boat to play with.
    And when you sell, you rarely make back the money spent.

                                             :cool:
     
  15. Bissell

    Bissell Microskiff.com... Priceless!

    ohh sorry, when i said tweek i ment the jp tabs prop ect. not actually to the motor, shouls have been more clear lol ::)
     
  16. DuckNut

    DuckNut Brandon, FL

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    . Maybe I missed it but I think they covered that.
     
  17. Bissell

    Bissell Microskiff.com... Priceless!

    you must have missed this..
     
  18. DuckNut

    DuckNut Brandon, FL

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    Didn't miss it at all...I was being polite in pointing out that your question was answered by the "King of Reason" aka Brett.
     
  19. Bissell

    Bissell Microskiff.com... Priceless!

    i already knew this... but alright thanks
     
  20. noeettica

    noeettica Well-Known Member

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    For me It's worth it for 5 Mph ;-)

    In a 13 footer 5 Mph is HUGE