Prop Swap opinions...

Swedefj40

Petty Officer 1st Class
Joined
Jun 9, 2018
Messages
215
Going for a rip tomorrow. I had to clearance the trim tab as the prop just nicks it. I have about 3/8" clearance now. I hope that's enough.1000058061.jpg
 

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Swedefj40

Petty Officer 1st Class
Joined
Jun 9, 2018
Messages
215
Well what a difference! The wife and I went for a rip today with a full tank of fuel and some picnic supplies. We also had the dinghy with us too. Wasn't a heavy "fishing trip load" by any means.

1st thing I noticed was the boat seemed to track a lot better going through a "No Wake Zone". Very little steering input to keep it straight. I wasn't expecting that.

2nd was the Hole Shot... big difference there. Probably got me up on step in a 3rd of the time if not quicker! Massive improvement! With the other prop, when I punch it, it hit about 3200 rpm and then it would gradually get to 4000-4200 where I would ease it back as it got up on step, then run it at 3900 @ about 27-28 mph. Now it climbs to 4000 3 times as fast. I am a bit slower at cruising speed now, maybe by 1 mph at 3900 rpm. It was a little rough out so it was hard to compare. I dropped it back to 3700 and 3600 even 3500 and it still stayed on step, so that was a nice change. With a little trim tab adjustment, I could keep on step down to 3200 rpm @ around 22 mph.

All in all, I'm very pleased. I couldn't have asked for a better result.
 

Swedefj40

Petty Officer 1st Class
Joined
Jun 9, 2018
Messages
215
Do you know what the WOT Rpm is with this Prop?
Not yet. I'd like to make sure my tach is accurate before I try it. I did push it to 4500 briefly and it went there no problem. Seemed like it wanted to keep going.
 

Stinnett21

Chief Petty Officer
Joined
Jun 24, 2012
Messages
611
BTW, assuming your 4.3 has power steering you don't need the trim fin zinc. You can use the flat zinc disk. Glad you're getting great results with the 4 blade.
 
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