Twin outboards
 

Hi Guys,

I want to mount twin Verados on my boat, does it matter how far apart I put them? I would like to go to 37" but is there any reason why i can't?

Cheers

Mike

You might want to post more information.

Padraig

Such as??

Well....I think a logical start would be what brand and model boat you are working with. There are many talented boaters on Offshore Only but in order to offer advise they need information. The more info the better.

Padraig

Yep ^^^^ tell us about your boat, what is it and what power are you replacing? Is it for fishing, cruising or is it a high speed boat....?

As a general rule, for high performance, you'd mount them as close as possible on a Vee hull. Helps with the centre of gravity for handling, turning etc. If you mount them further apart, it's better for low speed manouvering and docking. That said, all boats and applications are different. Lots of very knowledgeable guys on here who are always happy to help.

RR

The closer the better performance. Plus you have to remember the wider they are from the center of the hull, the higher the engines have to be following the v of the hull. If your transom is shallow being that far out the engines might be too low.

I’ve never seen a twin outboard v bottom with them that far apart. Why would you want to?

I think I offended him and he left.

Padraig

Yeah, I thought your post was rude and offensive, bordering on despicable.

:)

Great post.

I would only add:

that as the hull lifts at speed, so do the wheels.
So engines mounted too wide on a vee would loose water/cavitate at speed.
In theory (as on a twin I/O offshore boat) you would want them as close together and high as possible for outright speed.

The negative aspect to above is, in this configuration they handle like crap around dock.
Narrower they are mounted, less levarge to rotate hull w/one motor in fwd, one in rvrs.
Higher they are only aggravates this.

I am guilty of looking like I’ve never docked a boat before, multiple times, in my twin O/B vee’s in any whisper of a wind.
To the point that even w/throttle, you cannot turn the bow into the wind.

Speed vs handling....., hummmmmmmm 🏁

[QUOTE=rak rua;4720527]Yeah, I thought your post was rude and offensive, bordering on despicable.

:)[/QUOTE

It is good to have friends who are willing to show me where I have gone wrong. Seeing as it is a new year I resolve to not do it again.

Padraig

Hey guys,

takes more than that to offend me...

So the boat is a 31ft Condor flybridge, fairly shallow V hull. Was originally fitted with a 8.4ltr inboad but previous owner had it repowered with a single 225 2 stroke outoard!! I now have a pair of 250 Verado's to go on but to save me having to adust the transom i need to go out to 37" rather than the 26" that Merc say to get the right height. She is for fishing mainly so not bothered about flat out speed. Will be docking her in a tidal estuary so i was thinking further apart would actaully be better anyway??

Good you're not too thin skinned, much better post ^^^^^.... :)

Are you mounting direct on the transom or on a bracket? You could use adjustable brackets to get your engines up a little (if I'm understanding the set up correctly). Obviously cost would come into play too.

If she's a wide beam boat, I can't see why you wouldn't get away with 37". Would be nice for docking as you say and performance would be a big improvement over the single 225. Someone smarter than me (almost anyone) will be along to agree/discredit me I'm sure.

RR

Welcome back m11kg. This is a good group of people. It sounds like a cool project.

Padraig