DCB Tests First Mercury 860-Powered Boat, A Gorgeous M31 Widebody

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12-15-2017, 09:50 AM

#11

Knot 4 Me

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I imagine width is a problem.

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DCB Tests First Mercury 860-Powered Boat, A Gorgeous M31 Widebody-merc-860.jpg

12-15-2017, 09:50 AM

#12

575cat

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DOHC wide like a 5.4 ford .

12-15-2017, 10:05 AM

#13

payuppsucker

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Dohc

12-15-2017, 05:07 PM

#14

JaayTeee

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Quote:

Originally Posted by iaoutlaw

Aren't most 39TG staggered boats to begin with?

up to 700’s they are, I remember seeing one with 850’s and it was a short stagger( which a 1075 would be also)

12-15-2017, 05:28 PM

#15

JaayTeee

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Quote:

Originally Posted by jbraun2828

i wonder if the 860's would even fit in your donzi with their massive size. I've been told they won't fit in a 39 top gun unless they short stagger them. If that's true it would be hard to retrofit older boats. With the 700 being done not sure what's going to happen with the top gun. It would be a waste of a boat with 565's

I bet it’s due to not having the NXT transmission, more so than the engine itself

Last edited by JaayTeee; 12-15-2017 at 05:44 PM.

12-15-2017, 06:24 PM

#16

RaggedEdge

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Quote:

Originally Posted by Marginmn

Thanks for the info - I had no idea the 860s had that issue. What are they so wide?

Assuming these are built as long stroke big cube motors and are built using a tall deck block. Now think in terms of the basic V shape, the longer the stroke vs the crankshaft centerline the taller the V becomes, the taller the V becomes the wider the V becomes at the top, there is the problem in the refit into a boat with center to center distance set for a normal / standard deck block. Could be made to work , but would need a glass job and recut the transom to move things out.