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Old 31 October 2013, 16:14   #1
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Country: Denmark
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Delta 5.5 Type/size of Engine

Guys

I am doing a complete rebuild of a Nice Delta.

Good ideas how to power her up. ?

I am considering Merc, dont know if I go opti or 4 str. Suzuki is also an option !

Which HP ? 2 or 4 st? Merc or Suzi ?

I will use it for leisure, waterski, small trips etc.

Please help.

Cheers Thomas
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Old 31 October 2013, 18:13   #2
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Merc 75/90 2 stroke would be good if you could get one. The older style 75/90 four stroke would be ok but a bit heavy on the back end. Optimax 3 cylinder maybe a bit to heavy too. Watch this space for the New Mercury mid range four stroke coming out next year...
Oh wait maybe i should have kept that a secret?
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Old 31 October 2013, 19:02   #3
CJL
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Go for the biggest you can. The hull can handle pretty much anything so you'll be safe. This one has a 225hp two stroke........
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Old 31 October 2013, 21:27   #4
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5.5m with a 225hp? Wow...
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Old 01 November 2013, 02:07   #5
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225? Well I guess one sits a long way forward on the rib in question. I had a 200 on a 5.6 and it was quite unbalanced and not fun to drive, but it did look very cool. In the end I went with a 90 and couldn't be happier.

Admittedly it was a different hull so it may not apply.
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Old 01 November 2013, 03:21   #6
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Are you sure the delta in the picture is a 5.5? She looks bigger!
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Old 01 November 2013, 09:47   #7
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I had a suzuki df140 on a 5.5 destroyer and it was to much, with 2/3 up and 100l of fuel you couldn't hold it flat out as it went into a speed wobble. With 5-6up it was great but most of my trips there was only 2 on board and you had to be very careful. Super engine though and even more economical than the dt75 that it replaced. Have one on my new toy too
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Old 01 November 2013, 14:19   #8
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Thanks Guys. I think I will go for 90 or 115 HP. Have not decided the brand yet....

Cheers
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Old 01 November 2013, 14:37   #9
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Delta 5-5 is very well balanced with a 90 hp 2 stroke on the back, a good compromise between performance and economy. Option 4 with 90 Opti
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Old 03 November 2013, 04:08   #10
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I have a Delta Dash 5.5M with a Yam 130 two stroke on the back.
Blistering performance all the way to 42 knots.
Just about to do a retube and small refurb on her.
The max she can take on the plate is 140hp.
I agree though that a 90 is a good balance of power and economy.
At full power I use 20ltrs per hour!!!
Much less of course if I behave sensibly...............
But I rarely do!


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