User Tag List

Thanks Thanks:  0
Likes Likes:  0
Results 1 to 12 of 12
  1. #1
    Join Date
    Aug 2003
    Posts
    51
    Thanks (Given)
    1
    Thanks (Received)
    4
    Likes (Given)
    0
    Likes (Received)
    6
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Little Jet Boat engine Swap

    Remember the crazy several years ago all the 14-16' jet boats. Well I am looking at one but it has a seized 90 hp Merc head it it. Can I swap it out with a larger one. I see some that have the V-6 260 hp Merc Head. Any info would be helpful.

  2. #2
    Join Date
    Apr 2001
    Location
    Georgia
    Posts
    16,956
    Thanks (Given)
    2
    Thanks (Received)
    31
    Likes (Given)
    42
    Likes (Received)
    155
    Mentioned
    1 Post(s)
    Tagged
    7 Thread(s)
    Nope, won't swap. The 90's were Force powerheads and nothing interchanges with the Merc V6 stuff. The best you could hope for is finding a complete jet package and whackin the boat and putting the whole thing in it.
    Membership upgrade options: http://www.screamandfly.com/payments.php

  3. #3
    Join Date
    Aug 2003
    Posts
    51
    Thanks (Given)
    1
    Thanks (Received)
    4
    Likes (Given)
    0
    Likes (Received)
    6
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    So if I find one with a Merc 115 or 120 I could swap in the bigger motor?

  4. #4
    Join Date
    Apr 2001
    Location
    Georgia
    Posts
    16,956
    Thanks (Given)
    2
    Thanks (Received)
    31
    Likes (Given)
    42
    Likes (Received)
    155
    Mentioned
    1 Post(s)
    Tagged
    7 Thread(s)
    I'm not sure I understand the question, but none of the V6 stuff interchanges with the smaller stuff. I'm unfamiliare with Merc Sportjets between the 90 and 175, so I don't know if there's any interchangeability for the 90 and 115 or 120. I didn't know they made the latter 2, so I don't know what powerhead they're based on.
    Membership upgrade options: http://www.screamandfly.com/payments.php

  5. #5
    Join Date
    Oct 2003
    Location
    Rome, NY
    Posts
    1,053
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    0
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I am pretty sure the 120 sport jet was based off force as well but the 175 may be a 2 liter merc block...
    -Duane
    Clarkson University Graduate (Finally)
    68/69 V-131(or 141?) Checkmate...

    Quote Originally Posted by Raceman View Post
    This clown isn't qualified to be a janitor in my business.
    Quote Originally Posted by Liqui-Fly View Post
    Only a libtard...

  6. #6
    Join Date
    Apr 2001
    Location
    Georgia
    Posts
    16,956
    Thanks (Given)
    2
    Thanks (Received)
    31
    Likes (Given)
    42
    Likes (Received)
    155
    Mentioned
    1 Post(s)
    Tagged
    7 Thread(s)
    The 175 is a 2.5. I have one of those now. There are also some bigger ones in both 2.5 and 3 liter configurations. I think the big 2.5 is a 225, but it may be 240.
    Membership upgrade options: http://www.screamandfly.com/payments.php

  7. #7
    Join Date
    Feb 2003
    Location
    Bellingham, WA
    Posts
    6,057
    Thanks (Given)
    10
    Thanks (Received)
    13
    Likes (Given)
    68
    Likes (Received)
    78
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Raceman what is the biggest downfall to the sportjet concept, why did it pretty much die and why are boat with this setup so cheap to buy used compaired to a standard outboard model. (for my example compairing the price of a 15' std whaler to a 15' whaler rage) thanks in advance for any input.

    boomer sorry for the hi-jack but I think it is somewhat revelant to what you are trying to do
    22' Activator w/ 250xs Merc Opti, back home again

  8. #8
    Join Date
    Apr 2001
    Location
    Georgia
    Posts
    16,956
    Thanks (Given)
    2
    Thanks (Received)
    31
    Likes (Given)
    42
    Likes (Received)
    155
    Mentioned
    1 Post(s)
    Tagged
    7 Thread(s)
    I don't know. There must be a lot of em still being sold around here based on dealer's inventories. The SeaDoos have had Merc Sportjets in them for a couple of years now. I don't know if that changed with the Bombardier/OMC deal. I've got a Sea Ray F16R with the 175 Merc Sportjet and it's a great little boat. Except for Merc's insane plastic oil pump gear that cost me a powerhead at 8 hrs (out of warranty by age) I have no complaints with mine at all. They're a bunch of fun and will do so much stuff that a PWC won't.
    Membership upgrade options: http://www.screamandfly.com/payments.php

  9. #9
    Join Date
    May 2003
    Location
    Texas
    Posts
    78
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    0
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I sell the SeaDoos, some have mercs, some have Rotax engines.

    The Rotax four stroke seems to be the way the squirt boats are going.

    They are a popular boat, we sell a herd of em.

  10. #10
    Join Date
    Feb 2003
    Location
    Bellingham, WA
    Posts
    6,057
    Thanks (Given)
    10
    Thanks (Received)
    13
    Likes (Given)
    68
    Likes (Received)
    78
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I thought about it after I typed it, I guess the market really didn't go away, just changed. Remember when every manufacture had a little sport jet boat (including whaler), none of them do anymore, but now most of the PWC manufactures have boats, some bigger ones with twins as well. So I knd of worded my eariler post incorrect.

    Just think it is interesting that a 15' whaler rage is about half the price of a 15' whaler supersport
    22' Activator w/ 250xs Merc Opti, back home again

  11. #11
    Join Date
    Jun 2018
    Location
    SC
    Posts
    2
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    0
    Likes (Received)
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Anything can be done if you have time and money I have 1996 Dynasty Storm Jet Sport had 120 HP Merc that we're Chrysler I don't want put 125 Mercury that has been orphan and hard get part for it. I'm doing the planing now for some kind car engine

  12. #12
    Join Date
    Aug 2019
    Location
    Australia
    Posts
    4
    Thanks (Given)
    0
    Thanks (Received)
    0
    Likes (Given)
    0
    Likes (Received)
    1
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I currently have a 175 and needed a new power head so I used an older 175 outboard and got an 8 spline driveshaft manufactured (Sportjet powerheads are very hard to find in Aus). Now however I am looking at upgrading to a new 200 Sportjet. I am assuming that they're the same size hole for the installation... is that correct?

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Spinelli Props