Griswald

I'm making some modifications to my Bravo upper in order to accommodate a -3 lower. To get the prop clearance I had to chop off the rear snout of the drive just past the trim rams. I have acquired a Merc cavitation plate from a Bravo3 that I plan to fit and have welded in place.

My question is... How far back should/can the cavitation plate extend over the prop?

I've already cut off a large piece and if I were to weld today, the cavitation plate would extend about 4-5" past the prop. Very similar to the length of the plate on a stock Bravo3.

Would the length aid in planing and/or hurt performance once on top?

Here is a link to the gallery with some pictures.

click here

TooTall

post pics ! ~ !

goto photobucket and create an account
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copy the IMG link and paste it here in the message . . . it's free

Griswald

updated with link to pictures - ttt

Griswald

ttt

Griswald

job 98% complete. Forgot about this thread and started another

offshoredrillin

i would close up the top as well, dont want air or water to cause any cavitation. looks great though!

Griswald

It stays as it is. Have to feather it a bit to get on top but no real issues. Seems to work real well.

johnnyboatman

iTrader: (5)

griswald, your doing one hell of a job, did you try it before and after? i bet that thing throws one hell of a roostertail without the plate.

Griswald

I did, and there's really no difference before vs after but it will throw a bit of water in the air at cruise speed.