What can I expect.....prop switch

V4 Johnson

V4 Johnson

Petty Officer 3rd Class
Joined
Jan 30, 2010
Messages
76
I have a 4 Winns 170 Marquise with a 115 Johnson. I had been spinning a Michigan 3-blade 13.5x17 prop. Top RPM is 5500-5600 and 41 mph with 2 adults aboard.

I just got (a heck of a deal on iBoats!!) a Solas Amita 4-blade 12.75x17. I'm planning on starting to pull some 2-person towables and thought the 4-blade might bite for a better, stronger pulling boat.

Will I notice a difference in pulling power between the 2 props?? How much top end have I sacrificed ??
 
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Bamaman1

Lieutenant Commander
Joined
May 15, 2011
Messages
1,895
Re: What can I expect.....prop switch

I've had no 4 blade prop experience, but I've read on this forum that a 4 blade might cost you a MPH or two. There again, you're going down 2" of pitch, which may cost you a couple of MPH.

Everyone says you'll come out of the hole better with a 4 blade. It's just a matter of opinion to some.

Put the boat in the water and see what it'll do.
 
V4 Johnson

V4 Johnson

Petty Officer 3rd Class
Joined
Jan 30, 2010
Messages
76
Re: What can I expect.....prop switch

Bamaman1 said:
There again, you're going down 2" of pitch, which may cost you a couple of MPH.

Put the boat in the water and see what it'll do.
Click to expand...

No. Both props are 17's ............same pitch.

But I guess the bottom line is to try and see. Just curious to hear if anyone else had tried a similar swap.
 
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