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Old 14 February 2013, 07:31   #31
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Quote:
Originally Posted by ALANT View Post
looking at old posts Pete7's Pac 22 with 200hp was running 1 litre per mile
That's because @3/4 of that litre was being left as a slick on the surface behind the boat

Seriously, I don't think its a good comparison as it was an old tech engine that had been tuned from 120hp to 200hp mostly by winding up the pressure on the fuel pump.

I'd want to use something far more efficient and believe that under 1/2 l/mile is achievable at sensible speeds.

As mentioned, it may be a couple of years before I make a decision, might win the lottery in the mean time, or get to the point(again) where the boat goes up for sale to buy food for the kids.

Nasher.
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Old 14 February 2013, 07:37   #32
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Thanks again guys.

I rekon I could do this for @7.5K, which would be a damm sight cheaper than a newer outboard.

Plenty to ponder I think.

Nasher

I'd love to see a breakdown of your costings
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Old 14 February 2013, 08:41   #33
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I think it would make a great project...

I have the cummins QSD 2.0 lt married to an Alpha 1 leg. I don't know what I get per mile, but I love the engine, it not that noisy, there is no delay or turbo lag, I even wake board behind it...

It is in a coastline 7m and when you look at the outboard version with the splash tray bonded on the inside of the transom there is not much loss of space....

There is also a massive amount of dry storage either side of the engine as I have a full width engine box.

If you would like to have a look or even a test spin, feel free to get in contact.

I would watch the build thread with enthusiasm.....
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Old 14 February 2013, 09:35   #34
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Like this one ;-)

Coastline 7.0 - Cumins Mercruiser QSD 150 Hp - POA
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Old 14 February 2013, 10:14   #35
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There were quite a few of them
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Old 14 February 2013, 13:47   #36
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Mine got through an average of 16.69 litres per hour when I was doing 30 minute 'RIB rides' - which (usually) cosisted of 15 minutes of low speed/idling, and 30 minutes of being really quite enthusiastic , typically at around 35kts.

By my maths, that would work out at just under 0.75 l/m.

And then I stopped operating commercially, and couldn't use red any more...
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Old 15 February 2013, 03:14   #37
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How many people have actually ever had their diesel tested for being red or not inside UK waters?
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Old 15 February 2013, 03:40   #38
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It's all the same stuff (red) just if you are using commercially you sign a deceleration and pay less (ie no duty)

Same applies to yotties who use some of it for heating, they can declare upto 40% as not used for propulsion, therefore only pay duty on 60%.

Worth fitting an eberspacher at the same time then nasher, er??
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Old 15 February 2013, 03:49   #39
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The best thing about having a derv in your boat is you can heat your pasties on the engine, they run at 80c so it's just right
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