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Boating Talk For discussion of everything related to boats and motors |
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#1
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#2
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whats your rpms wide open?
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#3
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guess i will have to check them again??
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#4
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You should be turning between 5500 and 6000 wide open.
do you know what your props pitch is? |
#5
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i know stupid question, but i have never checked
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#6
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its written on them. the first number is the diameter the second number is the pitch.
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#7
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thx
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#8
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Pitch is 17
Running 45 mph and 5500 rpm wide open Looking at raising engines up as well Enertia or thunderbolt prop or powetech 4 blade also Definitely changing hubs and props |
#9
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Is that your gps speed or speedometer? I ask because one of those numbers isnt right. When I calculate your propeller slip it comes out negative which isnt possible
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#10
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42 mph on GPs or 36knots which matched up with speedometer and 5400 RPMs WOT
ken said its around 3 to 5 % slip ??? not sure i am saying this right? cruising was 3900 RPM's and 30 mph or 26 knots on GPS |
#11
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prop numbers were:
17 TL 15 1/2 not sure if i told u correctly earlier |
#12
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3-5% slip is really good, so raising your motors or trimming up more while you are running is probably your only option. A four blade will give you more hole shot, but reduce your top speed
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#13
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i will let u know. i am just mainly changing out props and hubs to stop chatter from those sws 11 props
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#14
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b
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#15
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ken at propgods.com is the man. went with 15 pitch merc enertia and thunderbolt hubs. no more clatter and better hole shot. if u have a prop issue, he can help
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