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-   -   Taking a 42 lightning triple and turning it to a twin (https://www.offshoreonly.com/forums/fountain/330963-taking-42-lightning-triple-turning-twin.html)

242LS 09-23-2015 04:09 PM


Originally Posted by Ran-Dom 32 (Post 4357920)
Motors Started out as 540 Bulldogs, now 557's , made right around 700 on dyno
Runs 90, Might have more in it if I started messing with drive heights

I'd call that 90.9. ��

twin69 09-23-2015 06:16 PM

Thanks for the input

twin69 09-23-2015 08:15 PM

Does anybody know of anyone out there that actually has a boat that was triples and now runs side by side twins??

Unlimited jd 09-23-2015 09:05 PM

I really don't see the big deal, it's not like they moved the steps or changed anything about the running surface. Pretty sure I know what boat has you asking these questions. If it had come up the way it did a few months ago I'd be building that one instead of my 40

indysupra 09-23-2015 09:17 PM

What boat you talking about?

Drew555 09-23-2015 10:34 PM


Originally Posted by Unlimited jd (Post 4358184)
I really don't see the big deal, it's not like they moved the steps or changed anything about the running surface. Pretty sure I know what boat has you asking these questions. If it had come up the way it did a few months ago I'd be building that one instead of my 40

Center of gravity and drives closer together . That's the difference . Much better handling faster ride and easier to work on

twin69 09-24-2015 05:27 AM

It's acually not that boat in Nh. I found a nice one somewhere else, I'm worried about setting it all up and being disappointed with it.

indysupra 09-24-2015 06:06 AM

I bought the green and white one. I was curious what other one was getting converted. I'm converting mine to a stag boat. Glassdave is going to do the glass work.

rak rua 09-24-2015 06:42 AM

Here's another similar thread.....

http://www.offshoreonly.com/forums/f...untains-2.html

Doesn't really answer your question but if you're thinking about staggering, member 'eddie' would be another month further down the line by now. (See the last post) May be able to help you.

Anyone know the actual spacing between the two outer engines on a triple rig compared to the spacing between twin non staggered engines? Presumably measure from prop shaft. I know about cog and weight distribution but just curious...

RR

Unlimited jd 09-24-2015 07:43 AM

[QUOTE=Drew555;4358227]Center of gravity and drives closer together . That's the difference . Much better handling faster ride and easier to work on[/QUOTE
If the boat was available in all 3 configurations how does that screw up the center of Gravity? That boat could be ordered with side by side, stag, or trips, what's the big deal? In fact the cockpit being shorter and further forward should help offset the weight of twins side by side. How is taking one engine out of the rear not going to effect it but taking the forward engine going to ruin the boat? And as far as drive centers I've ran boats from 33"-37" if it's setup right for what it is it's fine. To do 34" on my fountain I would've had to run short decks with e top headers, I think my 604's will make up for the 1 or 2 mph I lost pushing them out 3/4".


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