a bit OT - car engines in boats.
in [Aussie Drivers]
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From: Andy on 23 Feb 2007 02:21 John McKenzie wrote: > jackbadger56 wrote: >> At some stage in the next few years we're going to have to re-power >> our boat as the twin SD33's are pretty tired. I was thinking (just >> thinking!) that fitting modern twin 4cyl turbo-diesels would be worth >> exploring. We've yet to get quotes on the Nissans but I'm sure it will >> cost a fortune simply because it's for a marine application (diesel >> fuel at all the marinas in Pittwater charge about $1.70 per litre, to >> give you an idea of what they can get away with). If we were to use a >> heat-exchanger set-up rather than pumping seawater through them, would >> you really need to do a great deal of modification for marine use? The >> 'engine room' (wow, that sounds grand!) is pretty well sealed and >> there is heaps of room, so maybe any computers etc can be located well >> out of harms way. Two of the marine mechanics I've put this to seem to >> think it should be OK in theory, but had never put any thought into >> it, as they had never been asked. They weren't keen on the idea >> basically, but couldn't really give me a reason why. Has anyone here >> had experience in fitting stock car engines into boats? If so, do you >> think this is feasible? >> >> BTW I've looked for an 'Aus.Boats' to ask this, but am also interested >> in what 'car-heads' think of this idea. Traditional boaties are just >> too blinded by......well........tradition, and would be horrified at the >> thought of doing this to a 60yo Halvorsen (despite the fact that it >> currently has Nissan truck motors, which in turn replaced a pair of >> Holden sixes!) > > If fuelling is the main issue, what sort of power are you in need of > (and what sort of rpm, or do you have propellor options? I've got to be > inclined to think that a pair of 'somethings' on lpg would have to run > cheaper. it's not too hard to rig up a trailer with the right fittings > so you can fill 2-4 tanks on it, then run it back and put them in the > boat, similar but on a larger scale than forklift tanks. I have nfi as > to the legality, but I'd be looking into it keenly. It's likely the > cheapest by double to run per km, of course the setup cost might not be > choice. Then again, you might get away with a pair of holdens again, or > something. Maybe a pair of older ford 6s, reasonable torque if not so > rev happy. I'm genuinely surprised no-one has suggested a 350 Chev on LPG :-) Cheers, Andy. (t'other Andy.)
From: bugalugs on 23 Feb 2007 02:46 John McKenzie wrote: > jackbadger56 wrote: >> At some stage in the next few years we're going to have to re-power >> our boat as the twin SD33's are pretty tired. I was thinking (just >> thinking!) that fitting modern twin 4cyl turbo-diesels would be worth >> exploring. We've yet to get quotes on the Nissans but I'm sure it will >> cost a fortune simply because it's for a marine application (diesel >> fuel at all the marinas in Pittwater charge about $1.70 per litre, to >> give you an idea of what they can get away with). If we were to use a >> heat-exchanger set-up rather than pumping seawater through them, would >> you really need to do a great deal of modification for marine use? The >> 'engine room' (wow, that sounds grand!) is pretty well sealed and >> there is heaps of room, so maybe any computers etc can be located well >> out of harms way. Two of the marine mechanics I've put this to seem to >> think it should be OK in theory, but had never put any thought into >> it, as they had never been asked. They weren't keen on the idea >> basically, but couldn't really give me a reason why. Has anyone here >> had experience in fitting stock car engines into boats? If so, do you >> think this is feasible? >> >> BTW I've looked for an 'Aus.Boats' to ask this, but am also interested >> in what 'car-heads' think of this idea. Traditional boaties are just >> too blinded by......well........tradition, and would be horrified at the >> thought of doing this to a 60yo Halvorsen (despite the fact that it >> currently has Nissan truck motors, which in turn replaced a pair of >> Holden sixes!) > > If fuelling is the main issue, what sort of power are you in need of > (and what sort of rpm, or do you have propellor options? I've got to be > inclined to think that a pair of 'somethings' on lpg would have to run > cheaper. it's not too hard to rig up a trailer with the right fittings > so you can fill 2-4 tanks on it, then run it back and put them in the > boat, similar but on a larger scale than forklift tanks. I have nfi as > to the legality, but I'd be looking into it keenly. It's likely the > cheapest by double to run per km, of course the setup cost might not be > choice. Then again, you might get away with a pair of holdens again, or > something. Maybe a pair of older ford 6s, reasonable torque if not so > rev happy. > > I'd be very wary of gas. Any leaking into an enclosed space could build up concentration levels to produce a mighty BOOM
From: Andy on 23 Feb 2007 03:06 bugalugs wrote: > I'd be very wary of gas. Any leaking into an enclosed space could build > up concentration levels to produce a mighty BOOM Much like petrol and it's vapour. Cheers, Andy. (t'other Andy.)
From: Graham Fountain on 23 Feb 2007 03:48 "jackbadger56" <castle56(a)gmail.com> wrote in message news:1172199633.829258.94880(a)8g2000cwh.googlegroups.com... > At some stage in the next few years we're going to have to re-power > our boat as the twin SD33's are pretty tired. I was thinking (just > thinking!) that fitting modern twin 4cyl turbo-diesels would be worth > exploring. We've yet to get quotes on the Nissans but I'm sure it will > cost a fortune simply because it's for a marine application (diesel > fuel at all the marinas in Pittwater charge about $1.70 per litre, to > give you an idea of what they can get away with). If we were to use a > heat-exchanger set-up rather than pumping seawater through them, would > you really need to do a great deal of modification for marine use? The > 'engine room' (wow, that sounds grand!) is pretty well sealed and > there is heaps of room, so maybe any computers etc can be located well > out of harms way. Two of the marine mechanics I've put this to seem to > think it should be OK in theory, but had never put any thought into > it, as they had never been asked. They weren't keen on the idea > basically, but couldn't really give me a reason why. Has anyone here > had experience in fitting stock car engines into boats? If so, do you > think this is feasible? > > BTW I've looked for an 'Aus.Boats' to ask this, but am also interested > in what 'car-heads' think of this idea. Traditional boaties are just > too blinded by......well........tradition, and would be horrified at the > thought of doing this to a 60yo Halvorsen (despite the fact that it > currently has Nissan truck motors, which in turn replaced a pair of > Holden sixes!) No idea how much work was required, but an aquaintance of mine used to have a ski boat powered by a pair of turboed 13B rotaries. Went like the proverbial shower of excrement.
From: Cyborg 0019 on 23 Feb 2007 05:02
Graham Fountain wrote: > > "jackbadger56" <castle56(a)gmail.com> wrote in message > news:1172199633.829258.94880(a)8g2000cwh.googlegroups.com... > >> At some stage in the next few years we're going to have to re-power >> our boat as the twin SD33's are pretty tired. I was thinking (just >> thinking!) that fitting modern twin 4cyl turbo-diesels would be worth >> exploring. We've yet to get quotes on the Nissans but I'm sure it will >> cost a fortune simply because it's for a marine application (diesel >> fuel at all the marinas in Pittwater charge about $1.70 per litre, to >> give you an idea of what they can get away with). If we were to use a >> heat-exchanger set-up rather than pumping seawater through them, would >> you really need to do a great deal of modification for marine use? The >> 'engine room' (wow, that sounds grand!) is pretty well sealed and >> there is heaps of room, so maybe any computers etc can be located well >> out of harms way. Two of the marine mechanics I've put this to seem to >> think it should be OK in theory, but had never put any thought into >> it, as they had never been asked. They weren't keen on the idea >> basically, but couldn't really give me a reason why. Has anyone here >> had experience in fitting stock car engines into boats? If so, do you >> think this is feasible? >> >> BTW I've looked for an 'Aus.Boats' to ask this, but am also interested >> in what 'car-heads' think of this idea. Traditional boaties are just >> too blinded by......well........tradition, and would be horrified at the >> thought of doing this to a 60yo Halvorsen (despite the fact that it >> currently has Nissan truck motors, which in turn replaced a pair of >> Holden sixes!) > > No idea how much work was required, but an aquaintance of mine used to > have a ski boat powered by a pair of turboed 13B rotaries. Went like the > proverbial shower of excrement. Yeah large capacity v8 is pretty common,always thought of building a boat,but every time I thought of what might happen when I put a holden 6 into my row boat ,I found myself doing something more contructive to pass the time. |