2x225hp or 2x250 hp on the 8.5 Scorpion?

Fjordrafting · 24 November 2003, 22:35

I have ordered the 8.5 Scorpion. I want some power, and I think Yamaha for reliability. But I have heard that the difference in performance in 225 and 250 is very small (both 2-stroke), and it might be a questionmark with the reliability when so much power is taken from the engine?
Martin

Charles · 24 November 2003, 23:26

My set-up is 8.5metre Scorpion (Sportscruiser) i.e. heavier than an open rib with 2x225 Mariners. Top speed 54knts, can cruise 38 knts all day long! How fast do you want to go??

Richard B · 25 November 2003, 06:56

Martin, are you looking at HPDIs? If so I thought that the choice was between 200s, 250s and 300s? Or are you considering F225 4-stroke engines?

From a brief look at their web site the 250hpdi and 300hpdi look like they are based on the same 3342cc block and have the same weight, whilst the 200hpdi is the smaller 2596cc block.

Cookee · 25 November 2003, 09:29

Get the 250 - the 225 isn't HPDI but ordinary EFI, but then again Yamaha are reliable and twin 300's giving you an extra 100hp and more yeeeeeeeeeeeeeeeehaaaaa!

Red Fox · 25 November 2003, 20:41

The problems that some people have eh?
I still am finding it difficult to pick the right six lottery numbers so any help there would be appreciated then I too will be in the position to wonder whether to go for the 300 hp twin engine set up or heck why not go for three across the transom...one of each maybe but then I might just go round in circles...but very quickly!

Diesel · 26 November 2003, 13:23

Get a pair of 225 optmax mariners. There cheaper than Yamahas and just a good.

Jelly · 26 November 2003, 14:08

Nought like a completely impartial view

only jesting

Diesel · 27 November 2003, 10:41

Of course not!!!.

Fjordrafting · 27 November 2003, 12:52

Having cheked out the service in our home - town gave me no alternative. Yamaha havent sold any big engines, they have no special equipment, they have to have laptop etc. sent from the capital 350 miles away. They dont do any service outside their store etc.(So that is why everybody has Evinrude in our hometown!) So I finally ordered 2 x 250hp Evinrude. Just hope that Bombard wants to sell good engines, not like the junk the Americans sold.
Have made calls to the three biggest Evinrude-garages in Norway and had their opinions though. They seem to be pleased with the new engines.
The older ones broke down, and when they were repairing them, the cylinder was always to small and they had to be rebored. The reason for the sylinder being so small was that the American equipment was so old and worn out.
Just thougt you should know if you ever should come across a 99 Evinrude. Anyway that seams unlikely. They are probably all dead or very close to it by now!
Have a nice one!
Martin

seahound · 27 November 2003, 13:31

Fjordrafting

I have 2 x 200hp ficht on my 9.5m scorpion. Only fitted this summer and i can't fault them. My main priority was range and with the ficht fitted my fuel tank (120 gallons) has tripled in size !! well nearly. 35kts cruising - 45 tops with full load.

You will find that for the first 10 hrs they will drink oil (double consumption) but after that the oil level appears to stay the same, a bit weird really but not complaining.

For what its worth i think you have the best setup, even if most of the forum are obsessed with Opti's

Steve

Fjordrafting · 27 November 2003, 17:23

seahound

Thank you for your nice words! It is always good to receive some positive, confirming words when you are going to spend this amount of money.

Martin