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14 May 2006, 13:48
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#1
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RIBnet admin team
Country: UK - England
Town: Swindon
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
MMSI: 239050687/235055163
Join Date: Jul 2005
Posts: 8,881
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Odd tube on 40 mariner
Anyone got any idea if this tube would affect performance at all and what it was originally intended for?
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14 May 2006, 14:02
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#2
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Member
Country: UK - England
Town: Dorset
Make: Boston Whaler
Length: 4m +
Engine: Yam 25
Join Date: Oct 2003
Posts: 1,411
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Helps keep the boat clean and tidy 
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14 May 2006, 14:20
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#3
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Member
Country: UK - England
Town: Solent
Length: 6m +
Join Date: Jan 2004
Posts: 4,219
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Thats a weird looking pipe! Exhaust pipe maybe? Did you have a look inside it or smell it (for water/exhuast etc)
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14 May 2006, 14:22
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#4
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RIBnet admin team
Country: UK - England
Town: Swindon
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
MMSI: 239050687/235055163
Join Date: Jul 2005
Posts: 8,881
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It's an exhaust pipe-the motor is ex military. What I want to know is why have it and does it affect performance?
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14 May 2006, 16:10
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#5
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Member
Country: UK - England
Town: Solent
Length: 6m +
Join Date: Jan 2004
Posts: 4,219
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Doubt it will affect performace. It looks like a fairly big pipe - certainly no smaller than the exhast outlet on the prop. As long as theres decent airflow through it it should be fine.
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14 May 2006, 16:47
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#6
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RIBnet admin team
Country: UK - England
Town: Swindon
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
MMSI: 239050687/235055163
Join Date: Jul 2005
Posts: 8,881
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Yeah, but will having the exhaust not exiting near the prop affect holeshot?
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14 May 2006, 16:59
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#7
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Member
Country: UK - England
Town: Solent
Length: 6m +
Join Date: Jan 2004
Posts: 4,219
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I woulndt think so. A lot of engines dont have through-prop axhuasts anyway.
And if it didnt work the militery wouldnt have used it like that........
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14 May 2006, 17:04
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#8
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Member
Country: UK - England
Town: Essex/Vendee
Boat name: shockwave,Voluntry 2
Make: Pac 22/ searider5.4
Length: 6m +
Engine: 180hp turbo,yam 90
Join Date: Nov 2004
Posts: 1,005
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It looks very clean is it a bargain?
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14 May 2006, 19:14
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#9
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RIBnet admin team
Country: UK - England
Town: Swindon
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
Engine: Opti 225/Yam 85
MMSI: 239050687/235055163
Join Date: Jul 2005
Posts: 8,881
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Might be... I'm tempted by it. VERY low hours-less than 50.
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14 May 2006, 20:40
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#10
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Member
Country: UK - England
Town: Clitheroe
Length: no boat
Join Date: Mar 2006
Posts: 77
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Does anyone know the purpose?
Alex
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