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03-11-2008, 09:56 AM
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#1
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Registered User
Join Date: Jan 2007
Posts: 27
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ring 21c
hi i have just bought a new 225 opti for my ring 21c its mounted on a gill bracket could anyone suggest what prop i should use thanks
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03-11-2008, 11:02 AM
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#2
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Registered User
Country: Denmark
Boat make: Cobalt 263
Engines: Merc HP500EFI
Join Date: Feb 2005
Posts: 467
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26" Trophy or a 25" Laser II.
I had a 250XS on a P21 and ran a 28" trophy to the limiter.
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Lars
"you can't live in the past nor future, only the present - so enjoy the ride"
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05-11-2008, 07:50 PM
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#3
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Ringle@der
Country: England
Location: Uckfield, East Sussex.
Interests: Water Ski Racing.
Boat name: Both called ‘Irresistible’.
Boat make: Bernico F1 Twin, Monterey 265SC.
Engines: 2 x Mercury 300XS's, Yanmar 315.
Cruising area: South and east coasts. Eastbourne Marina.
Join Date: Mar 2006
Location: Uckfield, East Sussex.
Posts: 758
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Try a chopper or Lightning ET. I've tried a Trophy and a Laser II on my boat. The Trophy couldn't have been much worse (terrible chine walking, poor pullout and slow) and the Laser seemed OK until I tried to pull a skier out. Rings do not react like Phantoms and usually the opposite applies.
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06-11-2008, 09:06 AM
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#4
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Registered User
Country: U.K.
Location: Sarf London
Occupation: Consulting Engineer
Interests: President AYC
Boat make: Ring
Engines: Merc 2.5
Cruising area: Allhallows YC - Thames Estuary
Join Date: Mar 2005
Location: Sarf London
Posts: 118
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It just goes to show that trial and error is the only way:- A 24" small-hub trophy is unbeatable on my R20C/Promax outfit, way better than anything else I've tried.
gearcase design has a lot to do with it:- my 26" chopper was great with a standard gearcase but a complete dog with the sportmaster.
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06-11-2008, 10:27 AM
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#5
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Ringle@der
Country: England
Location: Uckfield, East Sussex.
Interests: Water Ski Racing.
Boat name: Both called ‘Irresistible’.
Boat make: Bernico F1 Twin, Monterey 265SC.
Engines: 2 x Mercury 300XS's, Yanmar 315.
Cruising area: South and east coasts. Eastbourne Marina.
Join Date: Mar 2006
Location: Uckfield, East Sussex.
Posts: 758
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20's have a couple of variations in transom design and this must effect water flow. I do know someone else who swears by a through hub prop on a 20.
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10-11-2008, 09:41 AM
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#6
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Registered User
Join Date: Jan 2007
Posts: 27
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thanks for the reply what size pitch would you recommend on say a lightning et
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10-11-2008, 06:27 PM
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#7
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Ringle@der
Country: England
Location: Uckfield, East Sussex.
Interests: Water Ski Racing.
Boat name: Both called ‘Irresistible’.
Boat make: Bernico F1 Twin, Monterey 265SC.
Engines: 2 x Mercury 300XS's, Yanmar 315.
Cruising area: South and east coasts. Eastbourne Marina.
Join Date: Mar 2006
Location: Uckfield, East Sussex.
Posts: 758
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If the rev limiter is a hard limit at 5750 you will probably need to go 26".
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