I spoke to a racer that told me that he used outboard cleavers on inboard bravo cat and it gave him more top end, I wanted to know has anyone tried this before and would it damage the drive to do so?

We did it on our race boat, will give you more top end but its hard on the drives and props.

We also had to raise the x dim to get any real speed increase

what do you mean hard on drives....would you compare it to like putting 3 blade props on and Ob cat.

Cleavers perpared (lab finish) for O/B are thinned more than an I/O prop. Which means it should be a little faster and crack sooner. The out drive dosent care if it has a lighth weight thinned prop or a thicker I/O grind until the blade flies off.

aren't cleavers designed to run high in the water near the surface??
I have a LH cleaver for my old volvo driven donzi and because of the low X dimension and lack of trim I couldn't get the cleaver to it's sweet spot so it didn't give me any more speed plus i needed gloves to get the damn thing on or off

A cleaver is a high surfacing, tail lifting prop. Very poor 'out of the hole' characteristics. Rarely used on vees.

all 3 . 5 . 6 drives . and arsons. all use cleavers . on vee''s and cat's .

I'm pretty sure we were talking about cleavers that came off an O/B, that keeps us in around that Bravo style drive.