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03-18-2018, 09:26 PM #1
90 mph small block I/O boat on ebay ? Naaaaaa
Ya all think this boat can get up to 90 with a 350 and this outdrive?
https://rover.ebay.com/rover/0/0/0?m...2F273104159124
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03-18-2018, 09:36 PM #2
The Blackhawk is a surface drive pushing a light, air entrapment aluminum hull, but a 350MPI? That's pretty ambitious unless that is one badass small block. Sounds stock in the description, so I'd say no.
Present Allisons: GT20/200 XRi (stringers up restoration by Jack Barsh), XST18/150XS/115 ADI clone (full composite restoration by Kevin Bryant), R13 (Larry Register splash)/850XS
Past Allisons: SS20/ 225 Pro Max, SS20/200 Merc, XR2002 2.5 260SS Merc, XTB21/225 Merc (hull #1), R15/60 JohnRude, EP15/60 YamaMariner
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03-18-2018, 11:49 PM #3
90mph Is possible, on the trailer pulled buy a Z vette down hill with a good tail wind
1994 Brad Collins Mirage Jag.with 1990 2.4 BP E.F.I Offshore
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olboatman liked this post
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03-19-2018, 12:40 AM #4Banned
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I don't have much experience with I/o....... that hull looks pretty cool but cool don't get 90 mph lol...I don't think stock small block turns the kind of RPMs that the outboard guys do... it has to be a pretty good pitch on that prop..... I like to know what the numbers was on the prop..... just a guess I'd say that boat does 70 mph or so
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03-19-2018, 05:52 AM #55000 RPM
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Remember the 21 eliminator with a stock 502mpi with a Blackhawk ran 90mph from the factory.
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03-19-2018, 08:01 PM #6
Last edited by flabum1017; 03-19-2018 at 08:03 PM.
"One of the penalties for refusing to participate in politics is that you end up being governed by your inferiors". Plato .
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03-19-2018, 08:36 PM #75000 RPM
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lets give this the benefit of the doubt, I think they made blackhawks with 1.36 and I think they only made 27 29 30 pitch props something like that.
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Capt.Insane-o liked this post
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03-19-2018, 09:07 PM #8
I don't know but have heard it said that the Blackhawk drive has a lot of slip
1994 Brad Collins Mirage Jag.with 1990 2.4 BP E.F.I Offshore
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03-19-2018, 10:09 PM #9
depends on the setup, but duoprops have very little slip
"One of the penalties for refusing to participate in politics is that you end up being governed by your inferiors". Plato .
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03-19-2018, 10:12 PM #10"One of the penalties for refusing to participate in politics is that you end up being governed by your inferiors". Plato .
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10-07-2018, 07:31 AM #11
Scarab P-29 has SBs with BHs 165gears and 31p props
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