680 Sun Sport

Tucker K5

Tucker K5

Well-Known Member
Oct 15, 2020
243
Guntersville, Alabama
Boat Info
2011 SLX 270, Just bought slightly used with 28 hours (9/2020).

2006 680 Sun Sport
Engines
SLX 270 8.2 Mercruiser Bravo 3

Sun Sport 680 Cat C30s
I’m going to take a look at an ‘04 680 this weekend.

If all looks good we may make an offer.

Of course there will be a survey.

Anything I need to look out for?
 
yes, bring your camera and show us the pics! That is one hell of a boat and from what I've seen over the years pretty rare

Is it CATs, 3412's? Incredible engine and from my understanding, near bulletproof (if taken care of, obviously)
 
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U don’t see these often, looks like an exquisite find..

Make sure it has enough cold storage for a couple cases of champagne - cheers !!
 
Wow! That boat is impressive. Good luck and keep us posted!
 
If you are truly moving up from a 270, I highly suggest you contact your insurance company before making an offer. Normally they don't like anything over an 8' jump unless you have other experience in a boat of the size you are moving to.

One insurance company quote required us to have a captain sign off on our abilities before allowing us to use a boat with a 16' jump from a 28 to a 44, despite having documented experience on several boats well over 60'.
 
Wow, what a beauty! And that is an amazing job on the photography and representing it in the ad.
 
If the 680 doesn’t work out I know where there is a beautiful 60SS.
 
Not sure what I’m doing wrong here but this is a reply to @Strecker25 ’s post above.

And there in lies a big part of my choosing of this boat.

I’ve been in the market for a couple of years now. When I started looking I was looking in the 50-60’ range but had stumbled across one of these that was on the market at the time.

Now it would be silly to pick a boat like this depending on its top speed but that caused me to start looking at power to weight ratios and that led to engine displacement to weight ratios. Logic (in my mind) being that the best displacement to weight ratio would lead to the best pounds of boat to fuel economy ratio and the engines doing the least amount of work per cu./in. And then subsequently the best potential engine life.

What I discovered was that this boat with its big displacement engines turning lower rpms at 25 mph has similar fuel burn as much smaller boats so my thinking has been why go smaller?

Im not saving much if anything on purchase price and I’m not saving much if anything on fuel burn.

Also the aftercooler on this is cheaper to completely replace (and significantly cheaper to service) than the service cost on the Mann engines aftercooler in the 60’ Sundancer. It is also required less frequently.

If anyone hasn’t figured it out by now I’m gearhead.
 
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swaterhouse said:
If you are truly moving up from a 270, I highly suggest you contact your insurance company before making an offer. Normally they don't like anything over an 8' jump unless you have other experience in a boat of the size you are moving to.

One insurance company quote required us to have a captain sign off on our abilities before allowing us to use a boat with a 16' jump from a 28 to a 44, despite having documented experience on several boats well over 60'.
Click to expand...

I appreciate the input on this.

FWIW I have owned a twin engine 33’ in the past. I know that’s not even close.

I do have an agent that I am working with and I have some leverage on him to get me taken care of.

I also have 2 good friends with the credentials to pilot the boat until I can get my own.

If you still see holes in my plan please elaborate. Part of my reason for posting here is to open my eyes to potential pitfalls before I make this leap.
 
Tucker K5 said:
Not sure what I’m doing wrong here but this is a reply to @Strecker25 ’s post above.

And there in lies a big part of my choosing of this boat.

I’ve been in the market for a couple of years now. When I started looking I was looking in the 50-60’ range but had stumbled across one of these that was on the market at the time.

Now it would be silly to pick a bout like this depending on its top speed but that caused me to start looking at power to weight ratios and that led to displacement to weight ratios. Logic (in my mind) being that the best displacement to weight ratio would lead to the best pounds of boat to fuel economy ratio and the engines doing the least amount of work per cu./in. And then subsequently the best potential engine life.

What I discovered was that this boat with its big displacement engines turning lower rpms at 25 mph has similar fuel burn as much smaller boats so my thinking has been why go smaller?

Im not saving much if anything on purchase price and I’m not saving much if anything on fuel burn.

Also the aftercooler on this is cheaper to completely replace (and significantly cheaper to service) than the service cost on the Mann engines aftercooler in the 60’ Sundancer. It is also required less frequently.

If anyone hasn’t figured it out by now I’m gearhead.
Click to expand...

looks like .4MPG pretty flat until almost WOT
upload_2021-10-9_9-38-4.jpeg


https://www.boatingmag.com/boats/sea-ray-680-capital-appreciation-0/
 
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