They don`t make em for SSM drive so i`ll have to make my own and give it a shot

I didn't run these on our Gun. We had 3As and transmissions so the porpoise wasn't as bad as a bravo boat. I'd run just a hair down on tab and kick the drives out a bit (not a lot) and that was the sweet spot I was referring to above.

If you're trimming the drives up to show a rooster, there's something wrong. The CG is off. Again, are you carrying weight up in the bow? Trimming the drives out that much is HORRIBLE for them. Super hard on the gears.

I'm still working out speeds on the Cafe. Gotta try a couple different props so I don't know if they scrubbed any speed. But if I had to guess I'd say no. They are horizontal to the running surface so no down drag from them. I don't see how they would reduce speed.

Did you ask if they would / could? They have all the machine parts to do it. I guess all they'd really need to get it done is a #3 / #5 drive to line up the measurements to machine them. I'd be really interested to see how they work on a 3 or 5. I bet it would make a huge difference. Look at #6's and that LOOOONG cav plate. Same affect.

let me clarify. The rooster tail is not from the drives...it’s from the tabs!!!! HAHAHAHAHA

:lolhit:

Ah! HAHAHA. Good!

Still, you shouldn't have to run THAT much tab.

Tank , they said not enough interest. Well I`m interested .

Jeez. I wouldn't think it would be that big of a deal to cut and fab up a couple pieces. I bet you take the pics of them to any fabricator you can get it done. Shoot, Dave (riverdave) in the video above is a machinist by trade and has all the means to do it. Get ahold of him. I'd bet he'd make a couple.

Ya, they`re already making them, I guess the 30 minutes to change the dimensions is just too much to ask. No problem, other places will take my money . They have enough I guess.

There are a number of products made that resemble that drive trim plate. I used them on a twin engine C.C. for years to reduce porpoise. This isn't anything new, they basically lift the stern and help hold the bow down.
They're all variations of this
https://www.basspro.com/shop/en/se-s...B&gclsrc=aw.ds

Oh, for sure. As Curt said they were always called "Whales Tails" when I was a kid using them on outboards. But kind've different to see on a large performance boat. And I'm very interested to see what it would do to a SSM 3 or 5. Don't think it would matter on a 6 because of the large cavitation plate they already have.