290 sc
08-01-2019, 08:45 AM
#32
Registered
I think your speedo is off. Does it have a pitot tube or is it pulling off the drive? If that speed is correct, that puts the slip around 30% which is way off for a Velocity.
Does it feel like 55? If not, either use your phone or get a small handlheld GPS. Also, how much trim are you giving the boat? Does it have a trim indicator? 3ft of a tail is not an abundant amount of trim, so that could be the RPM issue. Also, does the boat have tabs? Where are they set? If you have indicators for both, while the boat is on the trailer, have someone adjust both the drive and the tabs to where they are parallel to the bottom of the boat, and note that point on the indicators. The tabs should be no lower than that point when running for top end. The drive should be at least that high, and will end up being higher the more comfortable you become with driving the boat. Good luck!
Does it feel like 55? If not, either use your phone or get a small handlheld GPS. Also, how much trim are you giving the boat? Does it have a trim indicator? 3ft of a tail is not an abundant amount of trim, so that could be the RPM issue. Also, does the boat have tabs? Where are they set? If you have indicators for both, while the boat is on the trailer, have someone adjust both the drive and the tabs to where they are parallel to the bottom of the boat, and note that point on the indicators. The tabs should be no lower than that point when running for top end. The drive should be at least that high, and will end up being higher the more comfortable you become with driving the boat. Good luck!
Where are you located? There may be a Velocity member near you that can help.
Padraig
08-28-2019, 07:20 PM
#34
hi gents. still waiting on new prop had an issue with mercury i guess. talked to mechanic and he says there are no motor issues. but, does agree that rpms are way low for that boat and suggested either a 4 blade 26 pitch or going to a 3 blade wich im not going to do. just waiting on new one. scotty at velocity said i dont have enough hp to be spinning a 28. so, well see. love the boat tho. they are nice to drive when ya get used to it....
09-23-2019, 01:30 PM
#35
hi gang. got new prop from scotty. 4 blade 26 pitch bravo. incredible paneing difference and just overall better driving boat with it. he thinks my speedo is broke. i can get it just over 5000 rpm with 3 qtr tank and 3 adults on it but only registering 57 on the top end. my app on my phone read the same. although, at one point after trimming it down a bit i rea;;y felt the thing grab so im going to give it another whirl this week. had to slow down due to a no wake zone.
09-23-2019, 03:03 PM
#36
Registered
My 2006 290sc with 496 ho spins a 28p bravo1 labbed to 27p from the factory, slightly slow to get on plane but some tabs will help with that, and even as is it's not that bad. I know that speed isn't gps, but I would think it's right around 70ish
09-24-2019, 04:20 PM
#39
Registered
Scott Mccormick is great, he really knows his stuff and he is bringing the brand back, which I think is amazing. I'm super suprised he sent you a 26p prop. Maybe see if you can find someone locally with a bravo1 28p that will let you try it. I know this gen 496 has issues with paint in the cool fuel module causing injectors to clog. I'm going to pull my injectors this spring and get then checked and cleaned, do you have transom soot??
