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25-02-2011, 02:09 PM
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#1
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Registered User
Country: UK
Join Date: Jun 2006
Posts: 1,237
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Marinised Aston Martin V12.
Anyone seen an Aston Martin V12 fitted in a boat?
I keep finding myself wanting to put a V12 in the Velocity.
Lightweight, good power and 80% of its torque available at below 2,000rpm's.
Oh, and did i say it was English?
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25-02-2011, 02:16 PM
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#2
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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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__________________
Chaos for Moderator.
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25-02-2011, 02:26 PM
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#3
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Registered User
Country: UK
Join Date: Jun 2006
Posts: 1,237
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Quote:
Originally Posted by Jon Holmes
Oh, and did i say it WAS English?
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From 1999 to 2005 it was!
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25-02-2011, 04:42 PM
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#4
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Senior Member
Country: UK
Location: Hampshire
Interests: Powerboats,Commentating, Bikes
Boat make: None at the moment
Cruising area: Wherever I can get a ride !
Join Date: Mar 2006
Location: Hampshire
Posts: 690
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Aston Martin Engines
Aston Martin engines were marinised in the late 1960's by a long defunct outfit called Offshore Powerboats Ltd., of Brixham, Devon.
A Martin Lees was, I think, the man behind it all, if my old memory serves me correctly.
They bought Chris Tremlett moulded wooden hulls, & fitted them out, & as far as I know, & marinised & fitted the Aston Martins, giving, I think, 300 bhp each.
However, the boat or boats never performed, due to ... ... ... engine problems !
Not sure of many more details, but the outfit folded after about three years I seem to remember !
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25-02-2011, 04:55 PM
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#5
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timtap
Country: England
Location: Paignton Devon
Occupation: Ex Marine Engineer , Licencee
Interests: Photography, Real Ale .
Boat name: Shooters Too
Boat make: Scarab 22SC
Engines: Mercruiser 270hp
Cruising area: South West
Join Date: Jun 2008
Location: Paignton Devon
Posts: 333
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__________________
ʎɐqǝ uo pɹɐoqʎǝʞ ɐ ʎnq ı ǝɯıʇ ʇsɐן ǝɥʇ sı sıɥʇ.
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25-02-2011, 05:41 PM
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#6
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Registered User
Country: Guernsey
Occupation: Engineering
Boat make: None, boo!
Engines: Turbines mainly!
Cruising area: The inside of my workshop!
Join Date: Mar 2008
Posts: 2,646
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I don't know much about this, but it is something I'm interested in...
I would've thought an engine designed to be this high performance wouldn't fare well with the constant high RPM seen in a high performance marine environment? Could there be issues with reversion due to the cam profile?
That said, I love the idea of a V12 in a boat, and I can definately see why you're wanting to do it, but doing something this outside the box usually ends in trouble for me!!
I say go for it!!
James
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25-02-2011, 05:47 PM
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#7
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Registered User
Join Date: Nov 2010
Posts: 176
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Quote:
Originally Posted by Jon Holmes
Anyone seen an Aston Martin V12 fitted in a boat?
I keep finding myself wanting to put a V12 in the Velocity.
Lightweight, good power and 80% of its torque available at below 2,000rpm's.
Oh, and did i say it was English?
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Sounds like a intresting project about to be born GOOD TO BE DIFFERENT
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25-02-2011, 06:01 PM
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#8
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Registered User
Country: UK
Join Date: Jun 2006
Posts: 1,237
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James, the V12 in my Aston red lines at 7000rpm but you never really need to go there unless you want to sound like a screaming Ferrari! The motor makes max hp at about 5,500rpm and produces 80% of available torque below 2,000rpm so it should be relatively unstressed in a pleasure use application. I guess a set of high mounted stelling type exhausts would take care of the possibility of reversion.
Remember its producing around the same power as the new GM LS V8 smallblock's but in a smoother running V12.
Where can i get some good reading material regarding marinisation?
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25-02-2011, 06:40 PM
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#9
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Registered User
Country: US
Location: Virginia
Interests: Quiet desperation
Boat name: A Little Noisy
Boat make: Excalibur 24
Engines: Express Racing 525
Cruising area: Mobjack Bay (where?)
Join Date: Mar 2004
Location: Virginia
Posts: 1,974
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I wonder if there are any old Bonner V12s lying around?
__________________
I thought that having more patience was a result of my getting older. Turns out that I just don't give a sh*t.
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25-02-2011, 07:13 PM
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#10
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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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Swipewipes came very close to having a pair of 6Litre V12's from Aston Martin Racing (Prodrive) in the milder of the two LeMans setups. Prodrive came down for the day and came out boating to assess the requirements of the install, but back then (2007) the financial climate was just heading into a flat spin and nothing came of it. They wanted us to run on biofuel, then announced we'd need to carry 40% more than regular fuel to get the same oomph. That was a lot of extra fuel to carry on what was already gonna be some big tanks for RB08.
They were to be circa 600hp.
__________________
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"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
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25-02-2011, 07:16 PM
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#11
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Registered User
Country: UK
Location: South Coast
Interests: Boats/Cranes
Boat make: Revenger 29 RIB
Engines: Illmor V10/625hp.
Join Date: Oct 2005
Location: South Coast
Posts: 247
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Can't beat a V10 !
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25-02-2011, 07:25 PM
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#12
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Registered User
Country: Guernsey
Occupation: Engineering
Boat make: None, boo!
Engines: Turbines mainly!
Cruising area: The inside of my workshop!
Join Date: Mar 2008
Posts: 2,646
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Quote:
Originally Posted by Jon Holmes
James, the V12 in my Aston red lines at 7000rpm but you never really need to go there unless you want to sound like a screaming Ferrari! The motor makes max hp at about 5,500rpm and produces 80% of available torque below 2,000rpm so it should be relatively unstressed in a pleasure use application. I guess a set of high mounted stelling type exhausts would take care of the possibility of reversion.
Remember its producing around the same power as the new GM LS V8 smallblock's but in a smoother running V12.
Where can i get some good reading material regarding marinisation?
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Hmmm, sounds promising then, the rev range is 'normal' too, so propping and ratios won't be a headache. Normally at this point I ask myself 'why hasn't someone else done it?'
If you've found somewhere you can get one cheap, I say go for it!! Could somewhere like lancing help with marinising?
James
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25-02-2011, 08:22 PM
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#13
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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 Ben
I wonder if there are any old Bonner V12s lying around?
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You need a new anchor?
__________________
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"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
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25-02-2011, 09:16 PM
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#14
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Registered User
Country: US
Location: Virginia
Interests: Quiet desperation
Boat name: A Little Noisy
Boat make: Excalibur 24
Engines: Express Racing 525
Cruising area: Mobjack Bay (where?)
Join Date: Mar 2004
Location: Virginia
Posts: 1,974
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Quote:
Originally Posted by Jon Fuller
You need a new anchor?
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Nothing like a bit of mediocre power with the added benefit of unreliability.
__________________
I thought that having more patience was a result of my getting older. Turns out that I just don't give a sh*t.
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26-02-2011, 02:14 PM
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#15
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Registered User
Occupation: Ex marine engineer
Join Date: Nov 2006
Posts: 175
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Jaguar V12
Quote:
Originally Posted by Ben
Nothing like a bit of mediocre power with the added benefit of unreliability.
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I am very interested Ben in what you know about the Jaguar V12 Engines to pass those sort of comments. !!!!
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26-02-2011, 03:51 PM
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#16
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Registered User
Country: US
Location: Virginia
Interests: Quiet desperation
Boat name: A Little Noisy
Boat make: Excalibur 24
Engines: Express Racing 525
Cruising area: Mobjack Bay (where?)
Join Date: Mar 2004
Location: Virginia
Posts: 1,974
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Quote:
Originally Posted by Jim Brooker
I am very interested Ben in what you know about the Jaguar V12 Engines to pass those sort of comments. !!!!
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I stand corrected. After consulting 'Searace', I see that the engines produced very good power for the time and won a number of races.
__________________
I thought that having more patience was a result of my getting older. Turns out that I just don't give a sh*t.
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26-02-2011, 04:48 PM
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#17
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Registered User
Occupation: Ex marine engineer
Join Date: Nov 2006
Posts: 175
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Quote:
Originally Posted by Ben
I stand corrected. After consulting 'Searace', I see that the engines produced very good power for the time and won a number of races.
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In-fact I raced the Jaguar V12 for nearly 4 years, 2 of those with the Bonner built ones and 2 years with them being built by Geoff Richardson in St Neots, and we NEVER had a problem with the Jaguar parts of the engine, we had big problems with the Turbo Inter-coolers, they kept splitting and dumping sea water on top of the pistons and those Jaguars engines full with water still kept ruining and finished racing.
The Bonner engines ranged from 700 to 900 bhp with boost from 20 to 32 psi.
The Richardson Engines 780 bhp 22 psi much more reliable.
Jimmy
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26-02-2011, 06:42 PM
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#18
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Registered User
Country: England
Location: Eastbourne
Occupation: Auto Gearbox Repair shop owner
Interests: Old motor boats & old aircraft
Boat name: Pisces
Boat make: 1970 Stapely Falcon 17'
Engines: Merc 115 1984
Cruising area: CMBA meets
Join Date: Mar 2009
Location: Eastbourne
Posts: 147
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Quote:
Originally Posted by Tony Davis
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Someone shoot me down here, but didn't the Aston V12 start out as 2 Mondeo V6's glued together? And wasn't the Mondeo V6 a development of the Mazda V6? Don't get wrong here I am happy to be shot down as, for me, the Aston is the ultimate in motor cars. Having the factory as a customer of mine helps a bit to me liking them as well!
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26-02-2011, 07:45 PM
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#19
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Registered User
Location: hayling island
Boat name: snow monkey
Boat make: extreme 24
Engines: mercruiser 6.2
Join Date: May 2004
Location: hayling island
Posts: 2,082
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the mondeo v6 was a mazda,dont know about the rest
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26-02-2011, 08:55 PM
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#20
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Registered User
Country: UK
Join Date: Jun 2006
Posts: 1,237
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That is correct. The AM V12 was conceived from the idea of doubling the size of the Mondeo 3.0l V6 (an engine Ford obtained through their joint venture with Mazda) and developed by those extremely clever chaps at Cosworth Engineering. I dont believe the block is constructed from two cobbled together V6's though as it is a one piece aluminium casting.
Regardless of its origins the result is a beautiful V12 Engine.
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