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Bravo1 Cavitation Plate Mod

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Bravo1 Cavitation Plate Mod

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Old 07-03-2012, 12:06 PM
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Default Bravo1 Cavitation Plate Mod

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

Last edited by Griswald; 07-03-2012 at 01:39 PM. Reason: add link to photo gallery
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Old 07-03-2012, 01:10 PM
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post pics ! ~ !

goto photobucket and create an account
upload the pics
copy the IMG link and paste it here in the message . . . it's free
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Old 07-03-2012, 01:44 PM
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updated with link to pictures - ttt
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Old 07-04-2012, 09:14 AM
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ttt
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Old 08-09-2012, 08:59 PM
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job 98% complete. Forgot about this thread and started another
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Old 08-11-2012, 01:03 PM
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i would close up the top as well, dont want air or water to cause any cavitation. looks great though!
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Old 08-12-2012, 12:25 PM
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It stays as it is. Have to feather it a bit to get on top but no real issues. Seems to work real well.
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Old 08-13-2012, 09:59 PM
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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.
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Old 08-13-2012, 11:16 PM
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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.
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