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Old 06-26-2012, 01:44 PM
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I looked getting a used Formula with surface drives. The drives didn't scare me off, that was a plus. But I did have a concern about the props. Want to change props on your bravo drives, you can always buy used stainless props off ebay for around $150 to $300 each. surface drive, add a zero and increase that first number. I believe surface drive props are 3-5k each. Again, market share and tougher props. Bravo or Alpha makes it real easy to change props.

Also, have a boat/engine combo, you can find some good research on props and what to try. Surface drive, much less info. If you want to play big, like others said, bring the coin. I decided I did not want to play big, so I went smaller. Way cool and worth it if you have the coin.

Brian
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Old 06-26-2012, 10:54 PM
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Originally Posted by befu
I looked getting a used Formula with surface drives.
heres my friends formula w/ arnesons.fun day on sunday.

http://youtu.be/OhwGR64_Ghw
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Old 06-27-2012, 11:37 AM
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Originally Posted by Wolford
Why not use a #6 drive? They seem to hold up fine. Plus they look cooler.
Bevel gears

Jeff
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Old 06-27-2012, 09:22 PM
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Originally Posted by Philm
Couple reasons
People are afraid of them. They think they will make the boat handle like crap around the dock, make it more dangerous to swim off the back of the boat, ect.

They are expensive to convert to from a bravo style boat. An arenson ASD-7 conversion kit comes with everything you need but it is still right around $25k a side. Now if you were rigging out a new boat, the cost comes out about even between that and a full Imco SCX setup with extension box, steering, trim pumps, all of which are included in the conversion kit.
No ISSUES in docking.
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Old 06-28-2012, 01:18 AM
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Originally Posted by kjm5125
No ISSUES in docking.
Everyone i have talked to who has them or has driven them at some point says the same thing, that they dock just like any other high x dimension boat. But for some reason that is one of the things that people always bring up in threads like this, that docking is terrible.

On another note, why not a #6 drive (other than the crazy high cost of course) is that they are in the 550lb range with a trans, much much more than an Arneson equivalent.
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Old 06-28-2012, 08:44 AM
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550LB OUTDRIVE? thats heavy! 1100lbs right there in the back of the boat
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Old 06-28-2012, 02:32 PM
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Originally Posted by sutphen 30
heres my friends formula w/ arnesons.fun day on sunday.

http://youtu.be/OhwGR64_Ghw
I am getting my 1994 Cigarette Top Gun converted to Arneson ASD7Ms now. Do you know what prop your friend is using. 4 or 5 blade? Diameter? Rake? Pitch? What Horsepower. Any info may be helpful.
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Old 06-28-2012, 05:00 PM
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Originally Posted by UrbanDisturbance
I am getting my 1994 Cigarette Top Gun converted to Arneson ASD7Ms now. Do you know what prop your friend is using. 4 or 5 blade? Diameter? Rake? Pitch? What Horsepower. Any info may be helpful.
we run 775hp per side.gear ratio is 1.32/6 can't remember exactly.blade is a 5 blade and its 17.5"x 31 pitch,rake is 16 degrees.
on the 47 Excalibur,its 1200hp per side,6 blade 22"x27 w/ 18deg rake.

Last edited by sutphen 30; 06-28-2012 at 10:20 PM. Reason: right prop specs
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