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47 lightning 03-13-2014 08:48 AM

ran the boat again with hydro p5 27 pitch 5 blades. boat ran even better no tabs at all .more responsive to trim transom was a bit higher and nose a little flatter. only problem was at about 2500 rpm getting on plane a lot of viabration on the drives then it went away .I am spinning props in could be because of that .will try spinning out

Jamie B. 03-13-2014 03:03 PM

Glad you are getting it sorted out and congrats on the 1 addition !

nailit 03-13-2014 09:27 PM


Originally Posted by 47 lightning (Post 4089036)
ran the boat again with hydro p5 27 pitch 5 blades. boat ran even better no tabs at all .more responsive to trim transom was a bit higher and nose a little flatter. only problem was at about 2500 rpm getting on plane a lot of viabration on the drives then it went away .I am spinning props in could be because of that .will try spinning out

I tried spinning IN and mine did the same thing. I thought I could get more bow lift by going IN, it did, but it lifted the whole boat an was less stable... Anyway, I switched back OUT and the vibration went away. It would vibrate just as the water left transom while getting on plane and wasn't bad, just odd. Brett said it was b/c of the blades repeatedly losing and getting bite at a certain point while getting on plane.

Felt weird, hell, I thought my props were screwed up! Went away completely though...

47 lightning 03-14-2014 11:57 AM


Originally Posted by nailit (Post 4089477)
I tried spinning IN and mine did the same thing. I thought I could get more bow lift by going IN, it did, but it lifted the whole boat an was less stable... Anyway, I switched back OUT and the vibration went away. It would vibrate just as the water left transom while getting on plane and wasn't bad, just odd. Brett said it was b/c of the blades repeatedly losing and getting bite at a certain point while getting on plane.

Felt weird, hell, I thought my props were screwed up! Went away completely though...

Thanks for the info.. I will try spinning in those 5 blades ..although with the 4 blades bravo one's spinning in didn't cause the vibration..it actually ran good, but didn't
stop the porpoising.. Both sets of 5 blades that I tried cured the porpoising...I will probably end up trying some stock 4 blades to see how that works..


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