Twin-Engine Fish Nautique #2

Quite a number of places that marinize the Mazda engines.

A Google search will get you there   

Here's one of those places in the link click on the catalog

link

The outfit in NY that did Jeff's engines is out of business it looks like

Big heavy boat, I figure they used a gear reduction transmission like a Hurth with a 2.03 to 1 reduction ratio and pretty normal sized props, but that's just me figurin' or maybe looking at one of Jeff's pictures earlier in the thread

NautiqueJeff wrote:

For some unknown reason I have this wild urge to put one of those engines in a 16 ft Mustang. Just one would do.

KENO wrote: Quite a number of places that marinize the Mazda engines. A Google search will get you there    Here's one of those places in the link click on the catalog link The outfit in NY that did Jeff's engines is out of business it looks like Big heavy boat, I figure they used a gear reduction transmission like a Hurth with a 2.03 to 1 reduction ratio and pretty normal sized props, but that's just me figurin' or maybe looking at one of Jeff's pictures earlier in the thread NautiqueJeff wrote: For some unknown reason I have this wild urge to put one of those engines in a 16 ft Mustang. Just one would do.

A 13B turbo was one of the most exciting race car drives I’ve ever experienced. Not the wildest, but clearly memorable to this day and that was in 1986.

There is a place in Kannapolis (a couple towns over from me in Mooresville) that works on these engines, and even has experience with marine rotary engines. I may swing this by there and see if they think anything is salvageable.

http://www.rotorsportsracing.com

I can verify that having been on Sea Nautique I can not recommend buying one to fish for dolphin in , You will get sea sick.

Ran when parked

I would use a 50:1 or 40:1 premix to fire them off at a minimum.

I think I'd have a hard time tossing out the cool factor of the wankels in favor of V6's. Very neat project Jeff!

KENO wrote: 63 Skier wrote: I think I'd have a hard time tossing out the cool factor of the wankels in favor of V6's. Very neat project Jeff! What he said

2 X What he said

Gary S wrote: Guess I'm the only naysayer,turn them into anchors. They must not have been that great or everyone would have had them in their product line up. Plus the fact that they were not in the boat to begin with. Having to rebuild 2 questionable power units plus refurbish the boat will get you upside down fast

Gary,
I don't think you are the only naysayer:

1993R wrote: I would look at putting the straight 6's back in the boat if thats what came with it.

8122pbrainard wrote: I too would be inclined to go back to the 6's. Where they straights or V's? PCM's? What were they? .

Gary S wrote: Having to rebuild 2 questionable power units plus refurbish the boat will get you upside down fast

You're probably right on that. I am still not sure what I am going to do with this boat. I will probably keep it and restore it, but I may sell it as-is if someone wants it and would be willing to save it. I just don't want to see a rare twin-engine Fish Nautique end up in the landfill.

old discussion I found on same issue:

https://www.thehulltruth.com/boating-forum/183119-rotary-engine.html

Gary S wrote: Link not working Pete, I’d fix it but I’m on my phone

Trying but we've got some internet problems up here today.

And another link to more reading

link

Wonder what the logic was in converting the boat to Wankels?

Gary S wrote: Guess I'm the only naysayer,turn them into anchors. They must not have been that great or everyone would have had them in their product line up. Plus the fact that they were not in the boat to begin with. Having to rebuild 2 questionable power units plus refurbish the boat will get you upside down fast

Good point Gary, it's easy for someone like me to say "go with the rotary's" when it's not my time and money on the line! Or maybe I could suggest Jeff put a couple of Ilmor's in there.

But ..... if you grab a pair of 6 cylinders, and let's say at a minimum you have to refresh the top end, and maybe carbs need rebuild, and on it goes ..... I'm not sure that if you have someone knowledgable look at these engines that they won't give you the straight scoop, like "we have to tear them both down, new apex seals, blah blah blah and our estimate is $6,500 for the pair", in which case you move on and look elsewhere. If instead they say "let's spin them and check compression, if the seals are good we can clean them up, make sure fuel and ignition are working well, and fire them up" then why not give it a shot?