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BR 175 3.0 can't pull skier out? WOT at 33mph and 4100rmps

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    BR 175 3.0 can't pull skier out? WOT at 33mph and 4100rmps

    Hey all-
    Just purchased a used 2012 BR 175 with the 3.0 alpha i think...Really just plan to use for pulling skiers. It is really struggling in the hole shot to pull a slalom skier out of the water who is 160 lbs. The current WOT with 4 people in the boat is 33mph and 4100rpms. Does this thing need a tune up (plugs wires etc)? Also read about changing to a 4 blade prop...not sure about pitch though? Any suggestions to improve the Hole Shot? Again don't care about top end speed as we only use for skiing/wakeboarding. Thanks in advance for any input! Mike in NC

    #2
    Mike, I’m no expert but 135HP isn’t all that much for a boat if your mission is pulling skiers, especially single skiers. Wake boarding and tubing will be easier, a lot easier. You can help yourself with a different prop but be careful not to exceed the max WOT.
    Jim Gandee
    1989 3888
    Hino 175's
    Fire Escape
    [email protected]
    Alamitos Bay, SoCal

    Comment


      #3
      My old boat, listed in my signature, is like yours .............3.0/135 horse.

      I was a good skier but did have to fight to get up........the stock prop was a 21 pitch.

      I bought a 19P prop and that helped my holeshot and I used the boat that way for years.

      Both props were 3 blade props.

      Technically it may have exceeded max RPM at WOT........but I never took the motor over 4000 RPM's anyway during all of our days on the lake......I just knew to be careful and never had any prolonged high speed runs.

      Do some research on what your boat did when new.

      That number of 4100/33mph (with 4) seems a little off to me.

      Also........... verify the specs of the prop that is on your boat now.
      Present Boat- 2018 VR5 4.5/200hp Mercruiser
      Last Boat- 1998 Capri 1950CL 3.0 Mercruiser

      Comment


        #4
        Look at this review....your numbers indicate you might have a discrepancy of some kind......(spun prop hub???)

        https://www.boats.com/reviews/sea-tr...4%2C800%20rpm.
        Present Boat- 2018 VR5 4.5/200hp Mercruiser
        Last Boat- 1998 Capri 1950CL 3.0 Mercruiser

        Comment


          #5
          I had a boat 176 Searay 176 the same engine and I had no issue pulling a skier. I agree with vr5200 you have some sort of issue. What size and pitch is your current prop?
          QuickChek over Wawa
          Taylor Ham not Pork Roll


          2016 Bayliner 215 Deck Boat
          Mercruiser 4.3 220 HP MPI Alpha 1 Gen II

          Sold 2003 SeaRay 176 SRX Bowrider
          Mercruiser 3.0 135 HP Alpha 1 Gen II

          Sold 1988 Sunbird 170 Bowrider
          Evinrude 88 Special

          Restoring 1970 Salem Skiff 13.5 foot
          1992 Johnson 40HP

          40°55'22.9"N 74°39'11.9"W

          Comment


            #6
            The right prop can make a big difference in a boat like that - also load etc. Might try something like a 5 blade prop (I had one on my rinker to improve the hole shot) - also its important to move weight forward. I used to ski behind my grandpa's 19 glasply with a 70 Johnson and you had to hold on for a while...
            1998 Bayliner 2858
            7.4L MPI / Bravo III
            Harbour Village Marina - Kenmore WA

            Comment


              #7
              Originally posted by njosephson View Post
              The right prop can make a big difference in a boat like that - also load etc. Might try something like a 5 blade prop (I had one on my rinker to improve the hole shot) - also its important to move weight forward. I used to ski behind my grandpa's 19 glasply with a 70 Johnson and you had to hold on for a while...
              If that 70 was a 2 stroke, it had a lot of low end grunt.

              As a kid skiing, I have a fond memory of getting pulled up and getting that whiff of the 2 stroke exhaust as I went through it!
              Present Boat- 2018 VR5 4.5/200hp Mercruiser
              Last Boat- 1998 Capri 1950CL 3.0 Mercruiser

              Comment


                #8
                I had a Maxum with a 3.0 and my weight fluctuates between 185lbs and 200 lbs. with a combination of repropping, hydrofoil and always paying close attention to trim I was able to get out of the hole on a slalom ski but it always was a bit of a grunt. It always bothered me until I saw how much fuel tournament boats were going through. Practice your dock and your beach starts (or start on two and drop one) and you will be fine. The substantial gas savings far outweigh the power out of the hole imo.

                Currently watching from shore while deciding what my next boat will be !

                Comment


                  #9
                  Never did much tow sports with my BR175 with 3.0 but I remember having 2 props. Other than for safety reasons I would have my 21p for most of my riding and would swap to 19P when towing 2 person tube and we would usually only be 2 in the vessel. I was fortunate enough that my local marine shop would allow me to test props and return them as long as they had no damage of course. It might be something you can do with your local shop if you have one....

                  Comment


                    #10
                    Our 2012 185 has the 3.0 TKS...WOT for this engine is 4400-4800 so you may be over propped a bit. How is the bottom of the hull? Clean or does it have growth from sitting in the water? Believe it or not, if the hull is dirty, those numbers that you mentioned are exactly what mine did when the bottom was dirty....once clean, I ran 42mph and was able to hit 4800 rpm. I love the set up of Smart Tabs and a 4-blade 19” prop and hit my WOT numbers exactly at 4800...boat jumps on plane almost immediately. I can pull a slalom skier up with no issues with this set up...
                    Lake Hartwell, GA
                    2012 BR 185 - 3.0 TKS
                    1999 Chaparral 233 Sunesta Ltd., 5.0 Volvo
                    1987 SeaRay 300 - Twin 454’s
                    1993 Yamaha Waverunner III VXR
                    1993 Yamaha Waverunner III
                    1995 Yamaha Waverunner III GP
                    1995 Yamaha Waverunner III VXR PRO
                    1996 SeaDoo GTX
                    1999 SeaDoo GTX

                    Comment


                      #11
                      Just gonna add my 2 cents worth..... I have the 3.0LX in a 96 1952CL. The boat was a one owner, and it set for a long spell after his death. It was pretty much original. It ran, as the SNL would start it up every month for years, until the wife of the deceased could finally part with her husbands, loved possession. I am pretty green about this engine, etc....and it ran, so I pretty much just ran it, as is, worked for my needs.
                      That was 2 years ago. Now I was having performance issues, nothing major, just little things that bugged me, always started, never left me stranded, etc....
                      Even after doing the carb rebuild, fuel pump, wires, plugs, etc....it still seemed not 100%. Now I understand a 1996 boat/motor is never going to perform like a 2020, that is fact. But I dug a little deeper, put on a new distributor cap, and did the timing, and boy, did that make a huge difference.....I can tell i am getting more power, and speed, with less throttle advanced than I did before.....last time out, me and my wife, I had 35MPH @ 3300 RPM with lots of throttle left.....I never went higher, just do not feel comfortable at those speeds. You might check your timing and cap, my was pretty corroded, and the timing retarded just a few degrees.....

                      Comment


                        #12
                        mrowe I slalomed skied today with your boat. I am 270. Bilateral knee replacements. If you have the boat tuned it will pull whoever wants to ski assuming they are willing to do their part. That said I have an aluminum 19 pitch prop that I use, but prefer my 15 ss prop. I never exceed 4000 rpm and I can run about 32 mph with trim down. I have pulled two good slalom skiers with 19 prop and passenger. I try and ditch excessive weight and move passengers and stuff to the front of the boat when pulling skiers...at least until they are up. Good luck

                        Comment


                          #13
                          Something is definitely off. I have on '05 192 with the 3.0 TKS and my cruise numbers are right in at what is called out for it. I typically cruise 27 to 32 depending on my trim with 5 on board. With 2 on she jumps on step quite fast and takes just a little more throttle to get a skier out of the water. Giver her a tune up and verify the prop.

                          Comment


                            #14
                            I've got a '98 Capri 1850 that runs this same engine. Just recently purchased it, so I'm still learning the ins and outs of it. The previous owner had put a SS 19p prop on it and I can get the boat to about 35 mph top speed with the the trim set to just under about 1/2 on the gauge. My wife and I both wake board and have had no problems getting the boat moving quick enough out of the hole for the rider to get up, and that's usually with one of us driving and four kids riding along in the boat. Unfortunately, my rpm gauge is a little whacky (sometimes it works, sometimes it doesn't), so I'm not really sure what rpm's I'm actually reaching, but I've thought about trying a 21p prop just to see if I can get a little more top speed whenever I'm not pulling anyone.
                            '98 Bayliner Capri 1850 LS

                            Comment


                              #15
                              Originally posted by OldManV View Post
                              I've got a '98 Capri 1850 that runs this same engine. Just recently purchased it, so I'm still learning the ins and outs of it. The previous owner had put a SS 19p prop on it and I can get the boat to about 35 mph top speed with the the trim set to just under about 1/2 on the gauge. My wife and I both wake board and have had no problems getting the boat moving quick enough out of the hole for the rider to get up, and that's usually with one of us driving and four kids riding along in the boat. Unfortunately, my rpm gauge is a little whacky (sometimes it works, sometimes it doesn't), so I'm not really sure what rpm's I'm actually reaching, but I've thought about trying a 21p prop just to see if I can get a little more top speed whenever I'm not pulling anyone.
                              Read this and see if it helps your tach problem...............

                              https://www.baylinerownersclub.org/f...r-fluctuations
                              Present Boat- 2018 VR5 4.5/200hp Mercruiser
                              Last Boat- 1998 Capri 1950CL 3.0 Mercruiser

                              Comment


                              • OldManV
                                OldManV commented
                                Editing a comment
                                I'll have to climb in there and check that this weekend. Thanks for pointing that out!

                              • OldManV
                                OldManV commented
                                Editing a comment
                                I did just what they said in that post and sure enough it fixed my tach issue, which was great! Unfortunately, just as I suspected I'm not reaching the rpm range I should be at WOT. I'm only able to get up to about 4000, 4200 if I trim up some, and that's with a 19p ss prop. I would expect to see something closer to 4900 with the lower pitched prop, since the stock ones are 21p and WOT should be 4500 to 4800. So now onto the next project...figuring out what's holding the engine back.
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