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  #11  
Old 09-17-2008, 05:51 PM
Dilligaf Dilligaf is offline
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Join Date: Feb 2008
Location: Va Beach,VA
Posts: 288
Default Re: 1978 23 sceptre inboard speed
350 mpi 3200rpms cruise 28mph wot 38mph 4900rpm. half tank of gas and 3 guys...
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  #12  
Old 09-18-2008, 08:00 PM
ScottM ScottM is offline
Dieter Sprockets
  
Join Date: May 2002
Location: Marshfield, MA
Posts: 2,221
Default Re: 1978 23 sceptre inboard speed
Quote:
350 mpi 3200rpms cruise 28mph wot 38mph 4900rpm. half tank of gas and 3 guys...
But you're running an I/O right? These guys are talking straight IB's.
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  #13  
Old 09-19-2008, 05:47 PM
Dilligaf Dilligaf is offline
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Default Re: 1978 23 sceptre inboard speed
yeah i/o not inboard my bad
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  #14  
Old 09-24-2008, 10:11 PM
MarkR MarkR is offline
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Join Date: Mar 2003
Location: Cohasset, Ma
Posts: 94
Default Re: 1978 23 sceptre inboard speed
Mine is a '75 Sceptre inboard, Marine Power 350 - 4B Carb 260HP

16 x 16 cupped

2700rpm - 20knts (most economical cruise - I think)
4000rpm - 30knts
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