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New Yamaha XTO’s

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I remember when if you had a 31 Fountain with a pair of 250 Optis you were the man. Now, if you’re rolling a 31 it’s #poorpeople

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Nag,

  I have had a timeshare on Jewfish creek in Key Largo for almost 30 years. I can't begin to tell you the number of trip & quad engine boats coming through the ICW with the 375, 400, 575 Horsepower outboard engines hanging on the back. All different makes & models, the amount of money invested is sick! But I guess if you have the money!!

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6 hours ago, JEM said:

Something like 950 or 975 pounds!!!!!!!  WHEW, that's a load!

Agreed,  That's a ton of weight for any outboard.  The Verado 400R is around 670lbs and will make 450 plus reliable HP with a computer upgrade from Whipple.  I know these big CC's are huge and can handle a lot of weight but that's a bit excessive if you ask me.  Can't be good for MPG's.

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Overly discussed at this point IMHO.

I think Yamaha knows the market they are in. Myself not smart enough to question their approach.

 

And yes, I think that is one very heavy engine and am disappointed as 900 lbs of motor on my 1300 lb skiff may not work.

I am sure the market of 40 plus center consoles were a driving force behind this development as well as many EPA standards to meet.

I will also believe all the weights and other hype when the release is formal by the product manufacturer.

As Doc Holiday said, " thats's the rumor":)

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Here is the spec sheet.

The weights range from 952 lbs to 999 lbs depending on the shaft length. 

AB9D73E2-37DE-4D05-8B9A-189EBF70AD5E.jpeg

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Thank You Jeff for the brochure picture, upon further review I see a 12.2:1 compression ratio. I remember when Suzuki came out with the 350 @ 12:1 ratio and everyone thought that was crazy. Plus a smooth 2900 psi with five fuel pumps. Won't be long and we will be seeing 20% nitro-methane to boost performance!! :) 

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I'm not sayin anyone is lying but I've always been curios how these high compression motors run on 89 octane. Maybe because they're EFI, direct injected, etc... ?

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On 5/17/2018 at 2:43 PM, Lap it Up said:

That's a ton of weight for any outboard.

more like 1/2 to be precise :)

Amazing to see how large they are becoming...but, given the market for 40 plus, as mentioned above, it makes sense...

dc

 

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Mercury jus released step 2 of their motor plan on Friday. V8 up to 300hp lightest model is 505 lbs. There’s some talk of step 3 being a big v10 or v12 coming out with 400-500 hp and keeping them under 800 pounds. I think Yamaha won’t be standing a chance especially with all the problems they’ve been having with the v8 300 and 350s. They are supposed to be switching those motors to v6 now due to the 425

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I noticed on the web George Poveromo tested a pair of the 300hp back in March. 600# and being a BPS/Mako/Mercury guy he had nothing but great things to say about the performance. They do sound nice.

 

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