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Old 30 May 2018, 12:41   #1
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Country: UK - Scotland
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Make: Humber Destroyer
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Upgrade Prop Mariner EFI115

Hi

Wondering if there are any upgrades worth doing by getting a new prop over the standard one?

Its a Mariner EFI115 4 Stroke and the Prop has 77346A45 19P written on it
Im not sure exactly what to look for and what will fit etc.. any help would be great.
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Old 30 May 2018, 13:22   #2
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To answer this you will need to give more info such as what you want I.e economy, top end, low end etc, also need to know what revs you are spinning now, are you happy with current performance etc.

Is it an alum prop just now?
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Old 30 May 2018, 17:50   #3
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sounds like a similar set up to mine I ended up with a 22" stainless prop a 19 was over revving but had good accelaration I had a 21 Michigan and it was almost there:thumbs I can't remember what rpm it does at that but it will nudge 42-42 knots
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Old 31 May 2018, 13:34   #4
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Country: UK - Scotland
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Quote:
Originally Posted by Xk59D View Post
To answer this you will need to give more info such as what you want I.e economy, top end, low end etc, also need to know what revs you are spinning now, are you happy with current performance etc.

Is it an alum prop just now?
Yes i would like all that

Its more top end I'm after, everything is great as it is but to do the same average speed at a lower REV is what I'm after, next time I'm out i will take a note of speeds and positions etc
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