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Old 01 June 2009, 04:46   #1
Country: Ireland
Length: 5m +
Join Date: Nov 2006
Posts: 90
need Prop identification help

Hello, i need some help with what pitch prop to buy for my outboard , the number on the prop says 4873138A40 14P, if I was to put a higher pitch on what difference would it make, as there would sometimes be a few people on the boat, thanks

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Old 01 June 2009, 08:29   #2
Country: UK - Wales
Town: swansea
Boat name: Too Blue
Length: 8m +
Engine: Suzuki DT225
Join Date: Mar 2004
Posts: 12,791
Mercury ali 3 blade 14" pitch.

You need to know what revs you are doing at the moment at full throttle. If you are almost hitting the rev limiter then you can go up a pitch or 2 - if not then there is no point.

Also what speed are you getting?

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Old 01 June 2009, 12:51   #3
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Country: UK - Channel Islands
Town: jersey
Boat name: Martini II
Make: Arctic 28/FC470
Length: 8m +
Engine: twin 225Opti/50hp 2t
MMSI: 235067688
Join Date: Jun 2005
Posts: 3,018
If you increased the pitch by 1", your top end rpm would be reduced by around 2-300rpm.
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