Prop guy question
 

I have a Velocity 29' VR1 with 600 hp. After running a Hydromotive 5 blade 15 1/2x27 80.2@5100. And a Hydromotive 4 blade 15 1/2X30 79@4900 Both needed excessive trim to get my max mph. In the early 70s it chine walks. At my top speed trimmed high it doesn't chine walk at all. I think these props give more transom lift then I need. I'm looking for about 500 more rpm as well as maybe more bow lift to compensate for the excessive trim. The case is a stock XR and the nose is 3" under the pad. I'm thinking I need a Bravo 1 28P?? What do you suggest and have? Thanks,Steve.

Are you running the Q4's and P5's or Q4-X and PX5????? The Q4 and P5 give a lot more stern lift than the X props.

mrfixxall
 

What's your drive ratio?

1.5 ratio. Q IV, and P5

mrfixxall
 

Is your x-diamention stock ? i would try a spaller diameter prop,i would say try a revolution 4 but they only go up to a 25 pitch.

I just finished a 26 Velocity and ran into the same problem.
I tried all of the Hydro's and they all had to much stern lift and were driving it over on the nose. The best prop by far on that boat was the Maximus. I ran a 15 1/2 diameter. Not only did it handle the best, with absolutely no chine walking at all, but it was the fastest. I put a 2" shortie on and the slip is to high. I'm going to install a spacer, but even with 20% slip the boat is running over 90 mph. Good luck.
Eddie

:evilb:STEVE,TRY ONE,I THINK IT MIGHT BE WHAT YOU NEED.

The X series props will have a lot less stern lift and are somewhat similar to the Bravo 1 and Maximus.

I just got back from running a used 15 1/4 X 28 Bravo1
 

Got 81.6@ 5250 and ran out of water.I was too far in the 5 zone and had to let off. It planed better but still was side to side in the 70s most of the time. I have 3 Hydromotive props I might be selling.
Young, what hp what prop?

Hp is 701 hp at 5800 rpm. Gear is 1.5 and prop is 15 1/2 X 31 Maximus.
Eddie