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Hydrofoil Stabilizer

Thread in 'Motors & Props' started by Larry (Bo) Bolander, Oct 7, 2017.

  1. Larry   (Bo) Bolander

    Larry (Bo) Bolander Well-Known Member

    Likes Received:
    May 6, 2001
    Does a 170TF with a 115 hp motor need a hydrofoil? I kept the old one off of my 75 hp motor but, before I drill holes in my cavitation plate I thought I would try it out first.
    On the other hand, I wouldn't mind your opinions.
  2. rbstern

    rbstern Administrator Staff Member Administrator

    Likes Received:
    Jul 10, 2013
    In my opinion, with the right prop, no. If I had holeshot problems, I'd switch to a four blade aluminum prop with a pitch that gets me close to the motor's red line. Better solution than a hydrofoil.
  3. Larry Williams

    Larry Williams Well-Known Member

    Likes Received:
    Sep 22, 2017
    Baton Rouge, LA
    I have found the use of one to be well worth the trouble and expense. I bought the new Z18 with 150 four stroke and it performed perfectly- but fully loaded with fuel, livewells full and two big guys and the gear you can tell that hole shots were a little slow and very much fuel consuming. Since I had run the SE300 hydrofoil on a 20' glass boat with the 200 Yamaha I quickly put one on the new engine- absolutely a good move for me. On plane easily every time with 3000 rpm or less throttle. That, in itself, is worth the investment. The SE300 comes with a very well thought out template to do the install directly to the cavitation plate. don't even consider the clamp on system- they don't last and are expensive. There really is no issue with drilling the 4, 1/4" holes in the cavitation plate. I've used the model I've mentioned for 6 years now without issue. You will see mixed reviews on the use of one but I'm not going run without one. No matter what else you do with your prop configuration- you will see great improvement in the boats ability to get up out of the water and go- especially with heavy load situations. You will also be able to hold plane at lower RPMs. Ive never experienced any kind of speed increase with the use of it- Z18 set up properly, tops out at about 60 depending on conditions- that didn't change but I knew that it wouldn't. Since I fish a lot of shallow water here in Louisiana I am also using the Atlas Hydraulic Jack Plate on the Z18.
    Keep in mind that you shouldn't use one combined with any kind of hull attached planer boards or stabilizers since they can counter act each other making for some strange handling characteristics. Ok, that's my 2 cents worth....
  4. James R.

    James R. Member

    Likes Received:
    May 26, 2018
    Scott, La
    I've been wanting to put one of these on my little 50 mercury on my tracker pro170. The boat does good on it's own but I've seen the benefits of having one! It could get up out the water a little faster and I think 4200 is about the lowest rpm I've cruised at. Anything slower than that and it wants to sink back down. The low rpm break in period really sucked!! The SE300 says it will fit a 50 but with the motor only being 6 months old do you think the dealer will give me crap with warranty? Anyone have experience with a similar boat and motor size?

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