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12-11-2007, 12:02 PM
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#21
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Registered User
Country: UK
Join Date: Jun 2006
Posts: 1,237
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Quote:
Originally Posted by Cookee
Been up to Coniston to set a record and came back with two!
RIB Sport Professional 90.418 89.873 = 90.15 average
Outboard Immersed Propeller Monohull 92.207 90.932 = 91.57 average
The second one is for any monohull, not just a RIB, and was set with just me in the boat. Engine was a Mercury 2.5 Offshore rated at 280 HP on our race boat which was weighed at 970kg - photos to follow soon - here's one of the rig on the way back yesterday.
By the way the RIB record is basically the old Formula 1 RIB class, but up to 300 HP to allow our European friends race against us.
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Well done Cookee.
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12-11-2007, 12:16 PM
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#22
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Large member
Country: England
Location: On the farm
Occupation: General Trouble Causer Salterns Boatyard
Interests: Official smartass
Boat name: Seahorse.org
Boat make: a V24 and a SLOW unstable ICE Bladerunner
Engines: 2x300 promax, 320 Volvo
Cruising area: England/France & Med
Join Date: May 2005
Location: On the farm
Posts: 2,681
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Quote:
Originally Posted by Jon Fuller
Cookees constant ( 'C' ) works out at 5.3, which is pretty good for a mono.
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So my constant works out at 5.27 ~= coookeee
So its the weight that is slowing me down on the runs. Replace the V8 with twin 280's......
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12-11-2007, 12:18 PM
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#23
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numbskull
Country: United Kingdom
Location: South
Occupation: none
Interests: none
Boat name: Leviathan
Boat make: Phantom 28
Cruising area: South Coast
Join Date: Mar 2004
Location: South
Posts: 15,959
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It's 5.27 with the Volvo DPX & small block. But would most likely be a different number with OBs. might even be better, who knows.
All you need to do is build a small block, but be more realistic about the figure you want from it power wise.
450 would be a walk in the park, and that wee batboat would fly.......reliably.
__________________
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"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
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12-11-2007, 12:40 PM
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#24
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Large member
Country: England
Location: On the farm
Occupation: General Trouble Causer Salterns Boatyard
Interests: Official smartass
Boat name: Seahorse.org
Boat make: a V24 and a SLOW unstable ICE Bladerunner
Engines: 2x300 promax, 320 Volvo
Cruising area: England/France & Med
Join Date: May 2005
Location: On the farm
Posts: 2,681
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Quote:
Originally Posted by Jon Fuller
It's 5.27 with the Volvo DPX & small block. But would most likely be a different number with OBs. might even be better, who knows.
All you need to do is build a small block, but be more realistic about the figure you want from it power wise.
450 would be a walk in the park, and that wee batboat would fly.......reliably.
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My previous calculations said that to break the ton I needed 550hp. The new calculations show 545hp so not much in it.
Besides they said they could build a 650hp smallblock....
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12-11-2007, 12:44 PM
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#25
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Registered User
Join Date: Mar 2004
Posts: 6,891
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What block were/are they going to use for 650hp?
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12-11-2007, 03:39 PM
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#26
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Registered User
Country: uk
Join Date: Nov 2006
Posts: 308
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I think I'm gonna put me 300x on a dory 13 and do some ass kicking !!!
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12-11-2007, 05:22 PM
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#27
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Large member
Country: England
Location: On the farm
Occupation: General Trouble Causer Salterns Boatyard
Interests: Official smartass
Boat name: Seahorse.org
Boat make: a V24 and a SLOW unstable ICE Bladerunner
Engines: 2x300 promax, 320 Volvo
Cruising area: England/France & Med
Join Date: May 2005
Location: On the farm
Posts: 2,681
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Quote:
Originally Posted by Matt
What block were/are they going to use for 650hp?
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Two attempts so far. One USA cast small block and one series three small block.
Working up the courage for attempt THREE....
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12-11-2007, 05:30 PM
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#28
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Registered User
Join Date: Mar 2004
Posts: 6,891
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Mmm. Not familiar with a "series 3" - what is it?
Take a look at the blocks by world castings.
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12-11-2007, 07:27 PM
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#29
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numbskull
Country: United Kingdom
Location: South
Occupation: none
Interests: none
Boat name: Leviathan
Boat make: Phantom 28
Cruising area: South Coast
Join Date: Mar 2004
Location: South
Posts: 15,959
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Quote:
Originally Posted by red 5
I think I'm gonna put me 300x on a dory 13 and do some ass kicking !!!
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With 317hp on a Dory 13, the arse that will most likely get kicked, is yours.
Ever seen an over powered dory run? very scarey. You aint seen chine walking until you've seen a over powered dory go.
A mate of mine put an 85 Yam on a Dory 11. ferkin crazy.
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"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
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12-11-2007, 07:31 PM
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#30
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Registered User
Country: Job Centre
Location: In a box
Occupation: Chaos's gofer
Interests: Skiving
Boat make: Spectre 30
Engines: 2 x Promax 225
Cruising area: In the bath
Join Date: Mar 2004
Location: In a box
Posts: 5,201
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Quote:
Originally Posted by verytricky
Working up the courage for attempt THREE....
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You need a copy of this, very interesting.
http://www.amazon.com/gp/product/188...396572-7903244
__________________
Chaos for Moderator.
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12-11-2007, 09:21 PM
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#31
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Registered User
Location: poole dorset
Join Date: Mar 2004
Location: poole dorset
Posts: 868
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We used to run 17' 140hp wicked boats.
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12-11-2007, 09:44 PM
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#32
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Registered User
Country: uk
Join Date: Nov 2006
Posts: 308
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Quote:
Originally Posted by Jon Fuller
With 317hp on a Dory 13, the arse that will most likely get kicked, is yours.
Ever seen an over powered dory run? very scarey. You aint seen chine walking until you've seen a over powered dory go.
A mate of mine put an 85 Yam on a Dory 11. ferkin crazy.
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Ok what about putting it on a p19
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12-11-2007, 11:17 PM
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#33
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Senior Member
Country: UK
Location: Devon
Occupation: Garage Proprietor
Interests: PowerBoat Racing
Boat name: If Only
Boat make: Bernico F3 OCR, Bernico Prototype Inboard, and some Ribs
Engines: Yamaha Pro V 115
Cruising area: UK, France
Join Date: Jan 2005
Location: Devon
Posts: 3,095
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We ran a Bernico 19 with a 300xs in Belgium a couple of weeks ago !! at a comfy GPS 90 mph.
I suspect a ss EFI would be much safer.
Bob
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If Only
National Outboard Immersed Propeller Mono Record 103mph
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12-11-2007, 11:33 PM
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#34
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Registered User
Join Date: Mar 2004
Posts: 6,891
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http://www.worldcastings.com/prods_p...cks/motown.htm
Up to 454 cu in a small block package.
Quote:
Originally Posted by verytricky
Two attempts so far. One USA cast small block and one series three small block.
Working up the courage for attempt THREE....
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15-11-2007, 12:39 PM
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#35
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BananaShark Member
Country: UK
Location: Salcombe South Devon
Occupation: Racer and builder
Interests: Winning races
Boat name: BananaShark
Boat make: BananaShark 34' Race
Engines: Twin Yanmar BY 260's
Join Date: Mar 2004
Location: Salcombe South Devon
Posts: 4,638
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Video (better quality and edited will be available soon) and photos http://www.artisan-food.com/Images/R...7/BananaShark/
We were flying!
ps I'd love to see OCRDA's videos!
__________________
Cookee
British Champions! RIB Formula 1 2005
National Speed Record Holder at 90.15 (still)
www.bananasharkracing.com
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15-11-2007, 02:21 PM
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#36
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Registered User
Location: West Coast of Norway
Occupation: naval architect
Interests: surface piercing props, stepped hulls, air entrapment hulls
Boat name: none
Boat make: PetterTintorera
Engines: Yamaha 90
Cruising area: West Coast of Norway
Join Date: Sep 2005
Location: West Coast of Norway
Posts: 888
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Quote:
Originally Posted by Cookee
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Thanks for sharing…
Looks really nice in the later runs when only contacting on the two aft steps….
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15-11-2007, 02:24 PM
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#37
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BananaShark Member
Country: UK
Location: Salcombe South Devon
Occupation: Racer and builder
Interests: Winning races
Boat name: BananaShark
Boat make: BananaShark 34' Race
Engines: Twin Yanmar BY 260's
Join Date: Mar 2004
Location: Salcombe South Devon
Posts: 4,638
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Quote:
Originally Posted by Scand
Thanks for sharing…
Looks really nice in the later runs when only contacting on the two aft steps….
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That's only the Monday runs - The final video will have the Tuesday runs in when we're going faster!
__________________
Cookee
British Champions! RIB Formula 1 2005
National Speed Record Holder at 90.15 (still)
www.bananasharkracing.com
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15-11-2007, 02:35 PM
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#38
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Registered User
Location: West Coast of Norway
Occupation: naval architect
Interests: surface piercing props, stepped hulls, air entrapment hulls
Boat name: none
Boat make: PetterTintorera
Engines: Yamaha 90
Cruising area: West Coast of Norway
Join Date: Sep 2005
Location: West Coast of Norway
Posts: 888
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Quote:
Originally Posted by Cookee
That's only the Monday runs - The final video will have the Tuesday runs in when we're going faster!
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How fast are you going in the later runs on the Monday?
Looks like there was quite gusty wind blowing…are you posting the video from Tuesday?
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15-11-2007, 02:42 PM
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#39
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BananaShark Member
Country: UK
Location: Salcombe South Devon
Occupation: Racer and builder
Interests: Winning races
Boat name: BananaShark
Boat make: BananaShark 34' Race
Engines: Twin Yanmar BY 260's
Join Date: Mar 2004
Location: Salcombe South Devon
Posts: 4,638
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Quote:
Originally Posted by Scand
How fast are you going in the later runs on the Monday?
Looks like there was quite gusty wind blowing…are you posting the video from Tuesday?
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It was windy on Monday - Tuesday was the best day, but still gusty - when driving over disturbed water it felt as if you were driving over rumble strips on the side of a motorway or worse!
All of the times are here: http://www.conistonpowerboatrecords....rs_times.shtml
Monday was using our Race Tempest prop with a 1.87:1 special gearbox (originally a Sportmaster), and Tuesdays was with a tweaked Raker - reduced diameter and less cupping to reduce bowlift - just two runs on Tuesday - we were going to try another prop that we didn't have a lot of hope in, but we had a seal fail on the gearbox!
__________________
Cookee
British Champions! RIB Formula 1 2005
National Speed Record Holder at 90.15 (still)
www.bananasharkracing.com
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18-11-2007, 09:34 PM
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#40
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Registered User
Join Date: Nov 2007
Posts: 186
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Electric record
Hi
Does anyone know if Helen Loney set a new outright electric record ? I heard she did but it does not show up on the Coniston powerboat site.
Mike
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