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29 April 2010, 19:02
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#21
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Member
Country: UK - Wales
Town: West Wales
Make: Vipermax 5.8, SR4.7
Length: 5m +
Engine: 150 Opti, F50EFi
Join Date: Sep 2005
Posts: 6,299
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Quote:
Originally Posted by chewy
You need a minimum of 50hp on an SR4.
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But bear in mind the max rating of a SR4 is 50hp 
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29 April 2010, 19:05
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#22
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Member
Country: UK - England
Town: Up Norf
Make: Avon SR4,Tremlett 23
Length: 4m +
Engine: Yam 55, Volvo 200
Join Date: Apr 2007
Posts: 5,217
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Quote:
Originally Posted by Downhilldai
But bear in mind the max rating of a SR4 is 50hp |
Bollocks I thought you had to stay above that, I'm nearly down to the correct engine, had a 60hp and now I've got a 55hp!
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29 April 2010, 19:09
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#23
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Member
Country: UK - England
Town: Mighty Penryn
Boat name: Little Joe.
Make: Avon Searider
Length: 4m +
Engine: Honda BF50
Join Date: Aug 2005
Posts: 8,875
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Quote:
Originally Posted by chewy
Bollocks I thought you had to stay above that, I'm nearly down to the correct engine, had a 60hp and now I've got a 55hp!
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If you stretch the SR to 4.4 you'll be on the money. 
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02 May 2010, 18:43
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#24
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Member
Country: UK - England
Town: Bridgwater, Somerset
Boat name: Not sure yet
Make: Avon Searider 4m
Length: 4m +
Engine: Not yet fitted
Join Date: Nov 2009
Posts: 8
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Quote:
Originally Posted by Downhilldai
But bear in mind the max rating of a SR4 is 50hp |
I have been looking at a few 40hp outboards. Will it feel underpowered with this?
I was aware 50hp was the max but guessed it should be fine on 40hp.
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02 May 2010, 18:45
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#25
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RIBnet admin team
Country: UK - England
Town: The wilds of Wiltshire
Boat name: Dominator
Make: SR5.4
Length: 7m +
Engine: Yam 85
MMSI: 235055163
Join Date: Jul 2005
Posts: 13,069
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Nah, it'll still be mad with 40hp as long as you're not going to carry loads of passengers.
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02 May 2010, 19:12
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#26
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Member
Country: UK - Scotland
Town: fife
Boat name: top dog
Make: avon searider
Length: 4m +
Engine: yamaha 40
Join Date: Jun 2009
Posts: 282
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I've got a 40 and I get 30 knots on a good day without trimming the engine.
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Yawn :O
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02 May 2010, 19:16
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#27
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RIBnet admin team
Country: UK - Scotland
Boat name: imposter
Make: FunYak
Length: 3m +
Engine: Tohatsu 30HP
MMSI: 235089819
Join Date: Sep 2005
Posts: 11,639
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Quote:
Originally Posted by Gwilym
I have been looking at a few 40hp outboards. Will it feel underpowered with this?
I was aware 50hp was the max but guessed it should be fine on 40hp.
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It will plane with 25HP but be a bit sluggish with any sort of load. Depending what you do with it that would be fine. 40 HP should be fine, and 50 HP will be "exciting"... anything bigger is probably scary.
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02 May 2010, 19:36
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#28
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Member
Country: UK - England
Town: Up Norf
Make: Avon SR4,Tremlett 23
Length: 4m +
Engine: Yam 55, Volvo 200
Join Date: Apr 2007
Posts: 5,217
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When I was looking for an engine I was told 40hp would push it along but I'd soon get bored and wish I'd got a 50hp.
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02 May 2010, 20:08
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#29
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Member
Country: UK - Scotland
Town: fife
Boat name: top dog
Make: avon searider
Length: 4m +
Engine: yamaha 40
Join Date: Jun 2009
Posts: 282
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Two people 9.9 engine 15 knots that's what I'm doing now. Ribnet on the go!!!
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Yawn :O
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02 May 2010, 20:49
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#30
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Member
Country: UK - England
Town: Bridgwater, Somerset
Boat name: Not sure yet
Make: Avon Searider 4m
Length: 4m +
Engine: Not yet fitted
Join Date: Nov 2009
Posts: 8
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Thanks guys.
I am getting excited now as all I need to do is sort an engine. Got wind of a 25hp for sale near by but decided that was a bit small. Want to be able to carry three people max and it is for general playing and support vessel to some Deep Water Soloing.
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06 May 2010, 19:07
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#31
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Member
Country: UK - Scotland
Town: fife
Boat name: top dog
Make: avon searider
Length: 4m +
Engine: yamaha 40
Join Date: Jun 2009
Posts: 282
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a pic of a 4m planing with a 9.9 hp :O
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Yawn :O
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06 May 2010, 19:18
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#32
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Member
Country: UK - England
Town: Birmingham
Boat name: Sparrowhawk
Make: Osprey
Length: 5m +
Engine: Yamaha 90hp 2T
Join Date: Apr 2010
Posts: 215
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i had a 25hp on mine was ok got on the plane fine but felt like if i had a few people on it it wouldnt be any good, got a 40 now and feels rapid compared to the 25hp and 5 up still planed ok just needed people to move forward to help it plane, i have got a blocked up hull tho so this may have helped the 25hp engine
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