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14-01-2008, 05:17 PM
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#1
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Registered User
Country: uk
Location: poole
Occupation: retail
Interests: sport and being lazy
Boat make: ring rib
Engines: merc xr2
Cruising area: bournemouth bay
Join Date: Jan 2006
Location: poole
Posts: 1,681
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Thats what I call a Diesel
Audi's new v12 supercar 5.9 LTR's of compact diesel technology from the Le Man's racer pumping out 500hp and it's even quicker than it's petrol counterpart, if this was ever to be used in a marine application it could put a dent in Mercury's 525 and 600hp sales especially as it will probably have a reasonable rev range
http://www.autocar.co.uk/News/NewsAr...llCars/230115/
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i can na give her any more captain
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14-01-2008, 11:32 PM
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#2
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Member
Country: northern ireland
Location: tyrone
Occupation: wall and floor tiler
Interests: boats boats boats
Boat name: the black devil
Boat make: 27ft fletcher zingaro
Engines: 2004 vm motori 300
Cruising area: lough neagh
Join Date: Dec 2005
Location: tyrone
Posts: 30
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i wonder how heavy it is
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15-01-2008, 06:31 AM
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#3
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Senior Member
Country: netherlands
Location: Mijdrecht/holland
Occupation: truck repair
Interests: fast boats/porches
Boat name: bernico cat
Boat make: bernico 26 cat 2x 2,5,s
Engines: merc,s 2,5 EFI,s
Cruising area: ijselmeer
Join Date: Dec 2005
Location: Mijdrecht/holland
Posts: 382
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diesel
The engine is not that heavy ,its made from aluminium,block&heads.
the rpm range is 5000 + and that is the nice thing about this engine ,it has a long powerband ,and thats good
I have a 5,9 litre cummins diesel 24v common rail in my pick up truck,it has a short powerband 3500 rpm max ,but put out 550 BHP and 1100 ft/lbs max
it an do this ,because of the twin stage turbocharging and 50 psi boost pressure, mercruiser /cummins (CMD) offers the same engine (QSB 5,9) with 480 hp with a single turbo
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15-01-2008, 12:34 PM
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#4
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Registered User
Country: uk
Location: poole
Occupation: retail
Interests: sport and being lazy
Boat make: ring rib
Engines: merc xr2
Cruising area: bournemouth bay
Join Date: Jan 2006
Location: poole
Posts: 1,681
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Audi state it produces 1000NM at 1750rpm this would prove very useful as a boat engine and could cope without ventilating or 2 speed transmission I would imagine, it is said to be only 6inch longer than the petrol unit and as it is based on the 650hp Le Man's diesel now detuned to 500hp so should prove reliable also the Le Man's racer was reasonably light as you would expect for a race car so it must be assumed the engine is a light weight maybe lighter even than Merc petrol engines of similar HP...Maybe Audi could be persuaded by a P1 team to sponsor and develop this for racing now that would make a big splash in the offshore racing world
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i can na give her any more captain
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15-01-2008, 01:25 PM
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#5
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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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Cast iron block....
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15-01-2008, 04:57 PM
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#6
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Senior Member
Country: netherlands
Location: Mijdrecht/holland
Occupation: truck repair
Interests: fast boats/porches
Boat name: bernico cat
Boat make: bernico 26 cat 2x 2,5,s
Engines: merc,s 2,5 EFI,s
Cruising area: ijselmeer
Join Date: Dec 2005
Location: Mijdrecht/holland
Posts: 382
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Quote:
Originally Posted by verytricky
Cast iron block....
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The cummins is cast iron ,and is heavy 580 kg ,but has monsterous torque , 1485 nm torque at 2200 rpm,and could do exelent with a 2 speed zf trans
don,t know what the audi block weight complete ,but assume it is 400 kg at least,even an V 12 alu lambo is +- 350 kg ,I think the rotating parts must been much heavier to live under the high compression and high boost .
I heard a rumur a while ago ,they said Steyer is busy to develop a V 12 ,to use two 6 cilinder ali blocks ,but I don,t know if anything is true.....
sterling
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15-01-2008, 05:09 PM
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#7
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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:
The engine, the same unit used in the forthcoming Q7 V12 TDI, is derived from the diesel used in Audi’s Le Mans-winning R10 circuit car. Because the V12 is a relatively compact unit, Audi’s engineers have been able to slot it into the R8’s mid-mounted engine bay. And by using a stronger type of cast iron than usual, they have cut the thickness of the cylinder walls which helps to reduce the engine’s weight.
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I assume this meant they were cast iron, and not ally blocks.
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15-01-2008, 05:15 PM
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#8
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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 verytricky
I assume this meant they were cast iron, and not ally blocks.
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Liners rather than blocks?
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Cookee
British Champions! RIB Formula 1 2005
National Speed Record Holder at 90.15 (still)
www.bananasharkracing.com
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19-01-2008, 12:19 AM
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#9
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Member
Country: northern ireland
Location: tyrone
Occupation: wall and floor tiler
Interests: boats boats boats
Boat name: the black devil
Boat make: 27ft fletcher zingaro
Engines: 2004 vm motori 300
Cruising area: lough neagh
Join Date: Dec 2005
Location: tyrone
Posts: 30
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what ever happened to the v10 vw that would be another killer marine applacation i seen the vw 265 at the show yesterday its neat
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