Offshoreonly.com - Decreasing prop slip on 31/32

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Offshoreonly.com (https://www.offshoreonly.com/forums/)

- Active Thunder (https://www.offshoreonly.com/forums/active-thunder-30/)

- - Decreasing prop slip on 31/32 (https://www.offshoreonly.com/forums/active-thunder/341309-decreasing-prop-slip-31-32-a.html)

mountainmadness

09-20-2016 07:23 PM

Quote:

Originally Posted by ActiveThunder (Post 4483080)

Are the drives in the original positions or did you move them up? In other words is it the original X-dimension?

Propshafts are 7" below the boat. And the engine centers are @ 35.5"

Griff

09-21-2016 01:32 AM

Quote:

Originally Posted by mountainmadness (Post 4483113)

Maybe I am not to far off then. I need a set of props to bring my rpms down to 5200 anyways and would love to pick up midrange 3-4 k cruise mph. First big twin boat so this is my first rodeo. Came from a @90 mph 18' sbc alpha boat lol

I would look for a set of used 26's and have BBlades lab them.
He has the specs on my 24" Bravos (I have 1.36 drives) and could transfer them to a set of 26's.
My labbed 24's spin about 150rpm more than stock. If he labbed a set of 26's with the same recipe, you should be at 5100-5200.

ActiveThunder

09-21-2016 06:59 AM

Quote:

Originally Posted by mountainmadness (Post 4483357)

Propshafts are 7" below the boat. And the engine centers are @ 35.5"

Get your hands on a set of 25" Mirage Plus 3 bladers. Your drives are in the basement. The 4 bladders came out as builders raised the "X".

mountainmadness

09-21-2016 08:26 AM

Thank you all for the advice boys

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