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Old 08 November 2011, 11:46   #1
Country: UK - England
Town: Devon
Make: Ribtec 585
Length: 5m +
Engine: 115
Join Date: Oct 2011
Posts: 89
Avaon SR 5.4 engine size

Hi , having got some good advice on the hull i'm after some tips on power. I'm thinking an SR with 90hp optimax type 2 stroke is good for 33 ish kts with 4 adults , if i do down to 70 or even 60 , how poor does the performance get . I know peeps are gonna say well are you looking at cruising speed or top end but lets be honest , if it's flat enough we all go for the max on anything other than real long trip , so if it's a case of short ( sub 5 mile ) runs with throttle at 80% , whats the least thats gonna get me 30kts and still be able to pull a fat skier out of the water ? ok , I am the fat skier .

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Old 11 November 2011, 05:42   #2
Country: Luxembourg
Town: Hesperange
Make: Searider 5.4
Length: 5m +
Engine: Yamaha 75HP
Join Date: Oct 2008
Posts: 170
I asked similar queston a while ago. Please look at here:

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Old 12 November 2011, 13:06   #3
Country: UK - Wales
Town: Southampton
Boat name: DynaMoHumm/ SRV/deja
Make: Avon8.4, 5.4 & 4.777
Length: 8m +
Engine: Cat3126 Yam 90 &70
MMSI: 42
Join Date: Dec 2003
Posts: 6,562
Opti is very heavy absurdly so to be honest and so is the ETEC! ....cant beat a yammie 90 betol thoughis a yammie 89 2 stroke Best 4 stroke I have heard there i some nifty 4 strokes coming from Honda and Yammie but at the moment I think the Suzi 90 is the most suitable 4 stroke but a 90 yammie 2 stroke is the best Oh silly me I've said that before
Here it comes again, I don't stand a chance
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