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Quote:

Originally Posted by bigboat28 (Post 3756358)

Craney, how did it run before the spacers? I was thinking about spacers too if some 3 blades and turning them in does not stop it.

It had the spacers on when I bought the boat.

Tim, I would try anything up to maybe a 26 pitch.

absolutely try some good lab 3 blades, no hydro....
the 4 blades get up easy but lots of torque

Quote:

Originally Posted by bigboat28 (Post 3755339)

I too am spinning 4 blades and was told by b blades to try three blades. He said that they have more transom lift and less bow lift. I am looking for some three blade props for number 3's to try.

I'm fairly certain you misunderstood what BBlades was saying.
More blades and blade surface area increases STERN lift.

Spinning the props inward increases bow lift.

Single 28's need bow lifting props and twins need stern lifting props. I would try some Hydro Q4's on twin 28's.

Any updates from anyone that has tried anything different?

Quote:

Originally Posted by The Get Away (Post 3763818)

Any updates from anyone that has tried anything different?

I forgot about this thread, but yeah I figured out what was causing my issue or at least it is cured. I first took a straight edge against the hull and tabs and marked with a dot of nail polish on the indicators are level. I found that my right tab was almost 2 full numbers off (down) compared to the left. I always felt this and leveled it out figured it was my weight/ uneven load in the boat. Next I took note of the drive position with the drives all the way in. I'm not sure it it they are suppose to be tucked in to the transom all the way down but they were. I put the drives in a neutral position and marked the indicators. I found that he right drive was off 2.5 numbers on my indicators. After everything was squared away I went out for the day and the porpoise was barely noticeable running 30 or less mph. Any speed past 30 and it was not there. I run 30p 4 blade bravos with my drives at 3 (neutral not tucked nor trimmed on my boat) and tabs level with the hull I think around 6 on the indicator. I run this from idle all the way into the mid 70's with no porpoise in calm to a little bay chop before I start to trim the drives out to get the rpms and speed up. Rides perfect!