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  1. #1
    Member
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    Oct 2020
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    Chapin, SC
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    10

    Looking for setup tips for my Ranger 491VS

    I have a 1998 Ranger 491VS with a 2006 250hp Yamaha HPDI with a 25P Prop. I am maxing out at about 64mph at 5200-5300 RPM. The boat does not have a jackplate on it. I am looking for setup tips to hopefully get to 70mph. If I add a jackplate, what is the best size for the boat? What would be the best pitch prop for this setup? 3 blade or 4 blade?

    Thank you

  2. Member
    Join Date
    Apr 2015
    Location
    ponchatoula la
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    1,062
    #2
    I had a 487vs. Good hull but not the fastest. Had a 6” plate Yamaha 200 ox. Low sixties and everything I tried was just a little bit up or down. Most will say a tempest is the faster prop. I’ve heard their isn’t much difference in a 6 or 8 plate

  3. Member
    Join Date
    Jan 2005
    Location
    Red Oak Va.
    Posts
    10,629
    #3
    It needs a plate either a 6" or an 8". I think anything over a 6" plate would void the boats life time hull warranty if your worried about that. With a 25" prop you'll have to get it to turn 5800 rpm's to get 70.

  4. Member wareagle24's Avatar
    Join Date
    Aug 2009
    Location
    Florence, Alabama
    Posts
    10,419
    #4
    Since the 491VS already has a 15" setback built in, i don't it would need a very big jackplate. I used to own a 461VS with a 12" setback. I ran a 6" plate on it with good results.
    Long time listener, First time caller

  5. BBC SPONSOR/ NY Fishing Moderator
    Join Date
    Apr 2015
    Location
    New York
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    9,789
    #5
    6 inch plate and gotta get those rpms up..

  6. Member
    Join Date
    Jun 2018
    Location
    Tucson, AZ
    Posts
    1,560
    #6
    Per Ranger, the max jack plate is 6". I currently have a 6" and am considering dropping to a 4" when I get a new jack plate in a few weeks. I have a 225, because in 1994, the max HP was 240....
    1994 Ranger 492VS
    2004 Optimax 225 - 0T920364
    6" Hydro Dynamics Manual Jack Plate
    24p Fury 4
    24v 47" Lowrance Ghost / Lowrance HDS


  7. Member
    Join Date
    Aug 2012
    Location
    usa
    Posts
    128
    #7
    1994 Ranger 492VS. I wanted the Yamaha 200 Pro to which Hydro-Tec did their magic got the engine to 240 hp (boat was rated for 245). I added a 4 inch hydraulic jack plate not so much speed as for shallow ramp issues. I did not see any increase with speed with the jack plate addition. It did a help in others areas, but not speed. Prop--Yamaha 4 blade 13 3/4 x 24-----66-68mph. Slight increase in speed with the 3 blade Yamaha---67-69mph. Never broke the 70 mph barrier. Good sound hull, rides like a dream, and solid both fishing and riding in rough water.

  8. Member
    Join Date
    Apr 2015
    Location
    ponchatoula la
    Posts
    1,062
    #8
    Had several jack plates over the yrs. Never noticed anything different with a 4 or6” plate. Had rig setup pretty good with a manual plate and switched to a 6” hydraulic. Picked up maybe a 1 or 2. Biggest thing is trying different props. Find the sweet spot real fast