turbo rr

iTrader: (3)

Twin you hit the nail right on the head. I had a buddy that had a v8 on a 21 superboat. It ran well but DRANK gas. I am sure that the owners of that sonic checked around to see how much it will cost to update that power and figured it might be cheaper to sell and buy.

If those engines on the sonic are healthy and you could get at the right price...might not be a bad deal.

Jupiter looking good! Just need to swap a pair of 300x's behind there and really fly! What kinds of speeds are you getting now?

Twin O/B Sonic

I'm thinking, in the old school models, that they built a 28' and either a 31' or 33'. Thinking 33' though as they currently build a 31'.

Turbo, I've wondered though, you need big power/torque to push that much weight, so twin 300 V-8's working at 50% (for cruise) or 225's @ 75%??? Which is worse?
I've built a bazillion of the V-6 OMC's and the 8's are just two more pistons/rods stacked on top so I'm not sure on the fuel hog labels attached to these things.
My hunch is that a lot of that label comes from poorly tuned versions that would be fuel hogs. The V-6's SIX single barrel carb's are a hand full to keep in tune and the 8's would have two more
I would think a V-8 in proper tune should run close to what a small block/Alpha would.

machloosy

Look at the room in the cockpit.... Plus it may not be a big block rumble, but since when do people not like the sound of a dry sump v8 revving to 8K???

If I had the coin I'd buy that girl in a heart beat. I really like the sound and potential of the old 'rudes

Twin O/B Sonic

Would make some one a great, old school ride. The cabin in the thing is huge. I e'd him to ask about trading but got no reply.

As to the engine sounds....., there's nothing out there to mach a V-8 2 stroke, let alone two of them. The 2.5 liter Mercs scream but the 8's sound like Satan howling from the dark woods behind you and he's pissed off. Nothing like it.

As far as potential, here's what it takes in a car motor boat to get around an 8 thats built right. Thats a blown big block flat bottom w/a vee drive. In other words, about as bad as it gets!
The O/B is a Monty V-8 w/3 stages of nitrous. They ran a short course drag race and he lost by a boat due to him having a long course set up on the boat or he would have beat him.

Probably 700 HP's on juice.

Twin O/B Sonic

Looks to be another scam from a used car lot. BTW, the 45' that was $179K is now on e-bay w/a buy it now of $119,500.

So the guy w/the twin O/B lists it once on e-bay w/a $27K BIN and got zero offers as I expected. Listed it again w/a $23K BIN so I decided to send him a note.
Told him I was on my second mid '80's Sonic and was pretty sure his was of a similar age. Asked for a picture of the vin # on the transom. Then, poof! The ad is gone. The one on Craigslist has expired also.
Be interesting to see what it surfaces as next time.
An option may be that he took it in payment of debt, not knowing anything about boats and w/o knowing what he was getting.
He may have looked at that vin # and spit his coffee

Twin O/B Sonic

And now.......,
It's a '88 31'
New ad says previous buyer defaulted. What after finding out his his '2002 32' boat is actually 14 yrs older than that?
Spooky stuff.
http://cgi.ebay.com/ebaymotors/31-J-...orcev4exp=true

shaun1368

I was looking at this boat in the late 90's out of NJ. Curious where it is now. Twin O/B Sonic - you'll prob apprerciate the power

Twin O/B Sonic

cool. The 300's on the Sonic above also magically became 350's too.
Ton's of potential but I'd have to gut both of them like a fish and start fresh to be content.

Ernest T Bass

Well I broke the 85 mph barrier this past Sunday. 90 is surely doable since I ran out of room. Also the water was slick. So with 6" of chop and enough distance I believe it will get it and maybe then some.

Twin O/B Sonic

Need some side shots of it on the pad