Results 1 to 9 of 9
  1. 10-18-2018, 11:13 AM #1
    lperry
    lperry is offline
    Member
    Join Date
    Mar 2010
    Location
    Stratford Oklahoma
    Posts
    388

    Ranger R82 Repower Question

    Have this thread in Mercury forum but not getting a lot of feed back. I recently repowered 97 Ranger R 82 sport from a 150 efi to a Mercury 150 4 Stroke @B467082. Running a 23 Tempest plus which was on the EFI. Has a 6 inch manual jackplate. Hole shot is slower although it helped to plug all 3 holes in prop. Running WOT 5650-5700 RPM 57-58 MPH Water pressure 25-30, 3 1/4 inches below pad. Smartcraft Monitor SC 1000. I can live with the set up but would like better hole shot. Would a Hydrofoil be a simple solution? Or should I try a different prop?
    Reply With Quote Reply With Quote
  2. jarhead175
    jarhead175 is offline
    Banned
    Join Date
    Jul 2016
    Location
    Skiatook, Oklahoma
    Posts
    7,952
    #2 10-18-2018, 02:37 PM
    Prop when you say plug do you mean you closed off all 3 holes with solid plugs?
    Reply With Quote Reply With Quote
  3. lperry
    lperry is offline
    Member
    Join Date
    Mar 2010
    Location
    Stratford Oklahoma
    Posts
    388
    #3 10-18-2018, 03:23 PM
    Yes I plugged all 3 pvs holes with solid plugs. When I bought the boat with the efi on it all 3 holes had plugs with about 3/8 opening. I tried the 4 stroke with those in and then took them out completely which made the hole shot even worse. Hole shot seems to be some better with solid plugs in all three holes. But its still a little slow with just me in the boat and I only weigh about 155.
    Reply With Quote Reply With Quote
  4. mdtritn21
    mdtritn21 is offline
    Member
    Join Date
    Jan 2005
    Location
    Red Oak Va.
    Posts
    10,597
    #4 10-18-2018, 09:39 PM
    Normally you don't vent a 4 stroke but you can try small PVS plugs instead of the solids to get more rpm's on take off. Your looking for 3500-3800 rpm's at break over.
    Reply With Quote Reply With Quote
  5. turfy49431
    turfy49431 is offline
    Member turfy49431's Avatar
    Join Date
    Oct 2014
    Location
    Virginia Beach
    Posts
    4,673
    #5 10-27-2018, 03:59 PM
    Try to take one plug out and see how it is
    Ranger R81VS, Mercury 175EFI w/ 25 Tempest
    Reply With Quote Reply With Quote
  6. jarhead175
    jarhead175 is offline
    Banned
    Join Date
    Jul 2016
    Location
    Skiatook, Oklahoma
    Posts
    7,952
    #6 10-28-2018, 04:25 PM
    On my previous boat I messed with the plugs and never seemed to find the right amount of venting. So I bought a set of solid plugs and drilled them out 1/32" per run with a cordless drill till I got the hole shot rpms I wanted.
    Reply With Quote Reply With Quote
  7. mdtritn21
    mdtritn21 is offline
    Member
    Join Date
    Jan 2005
    Location
    Red Oak Va.
    Posts
    10,597
    #7 10-28-2018, 08:18 PM
    You could try a 23" trophy with all holes plugged, that should give you a better hole shot.
    Reply With Quote Reply With Quote
  8. lperry
    lperry is offline
    Member
    Join Date
    Mar 2010
    Location
    Stratford Oklahoma
    Posts
    388
    #8 10-29-2018, 06:45 PM
    Prop shop in Oklahoma City suggested I try a Power Tech Tro 4 23 pitch. Any thoughts?
    Reply With Quote Reply With Quote
  9. lpugh
    lpugh is offline
    Member lpugh's Avatar
    Join Date
    May 2009
    Location
    Sacramento Ca
    Posts
    5,206
    #9 10-29-2018, 10:22 PM
    Tempest or Trophy, if you get a foil, get a Chris Baily or Allison. It will keep the nose down better and probably will help the hole shot time a little. However I would recommend getting the prop and p to p right first then try the foil. On my Cougar the foil did nothing for hole shot time, just kept the nose down and stay on plane about 4 mph slower which is helpful when side graphing
    Thank You Leon Pugh
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »