1075 Merc
 

i've been looking for info on the motors.. saw then in the FL Boat show... anyone have anything they want to share.. all i heard was $$$$$$$$

What I have read/heard so far.......

557CID
2 twin screw Lysholm screw-type superchargers
Multi-port fuel injection, 2 injectors/cylinder
Eight ignition coils, one/cylinder
Smartcraft controller
Merc dry-sump #6 drive standard
PCM038 micro-processor controller handles all spark, knock, variable boost control (electronic bypass valve), timing etc. ; has capability to automatically decrease engine power if any monitored parameter is out of accepted levels.

Not sure of $$$$$- I'm sure it will be obscene.:eek:

sounds like fun... would be nice to run in a tiger...

thanks

It will be nice, it WILL be extraoridarily expensive. :crazy:

:D Also requires unknown quantities of "expensive fluid" :D

I probably couldn't even buy the flame arrestor/inlet silencers for it.:rolleyes: (they are made from carbon fiber- and patented)
For what these 1075's are going to cost, turbines make a lot more sense, and actually will last thousands of hours, not tens.);) The only reason people don't get into them is because they don't understand them.

i heard 100 per side :(

Yes sir, Thats about right with free rebuilds. We will soon find out on a pair of 1075"s when they become available late spring from Merc Racing for our new 396 Sunsation project.

I also think many people feel that the sound of a piston powered V8 is simply too pleasing to the ear to give up for a turbine.

And most fuel dock don't carry Jet-A or Av gas.

Yeah, I overlooked that small detail.:crazy:

I thought most marine turbine applications ran on Diesel, or no?

turbines are multi fuel engines. will run on diesel as well as others

They'll run on Jack Daniel or Chanel #5 if you have enough of it.

Jet-A not required, the fuel controllers are altered to run on diesel.
Av-gas? That's 100 octane low-lead gasoline.....
A turboshaft at cruise will more than double the torque of that engine, and fuel burn will be almost the same.
As I said, most people don't understand them, so the recips win out.
As far as the sound, I'll take the sound (and reliability) of a turbine anyday over an antiquated piston engine with all those thrashing parts looking to beat their way out.;) :D But that's me, I work on jets for a living.
As far as having them in a boat, it's not much of an issue with me, even though I can work on both, I can't afford either....... I'm very happy for you if you can.:)

BTW, Merc has/is always working on turbine R&D.:cool:

jafo

can't you mix diesel and 98 gas with a ratio of 80-20 and get about the same or i should say close to the same as jet a.. i was tinking all jet a is offroad farmer's fuel..

i thought it was something to do with red die.. and don't they check that with a clear hose to see what is in the fuel cell...

the only problem we have had with our motors is really two thing.. maybe three.. first the main one.. goverment specs.. second getting it to go from 40k rpms down to something a 6 can hold and three.. keeping the motors clean of salt water.. but a flush kit and some other rigging can help keep water out of them..

Jet-A is kerosene refined to its absolute cleanest level.
It has no lubricity features, and when I use it in my diesels,;) I have to add Power Service and a little Marvel to replace those lubricants removed in the refining process.
Any amount of gasoline used in a turbine can cause damage. Although allowable in emergencies, its usage usually requires fuel-related components to be overhauled (i.e. HP fuel pumps; BIG $$$$)
I doesn't surprise me that it is difficult to get a #6 drive to handle the torque of a turbine (other than maybe the LTS101). I would think that the Arneson surface drives are much more suited to this kind of power.
Although it has been many years ago, I think there was a company in Lousiana that had the gearbox issues down pretty well as far RPM reductions - MTT? I think it was a guy named Ted McIntyre that did a lot of R&D on this......They also were replacing magnesium compressor cases with later tech aluminum alloy to help with the corrosion issues.

Nice to hear Merc is offering free (???) rebuilds on this new behemoth, but for how long? I wonder how much it costs when one has to come out of the customers
wallet......:eek:
Jim

jafo

where can i get one insuranced... 1500 lycomings in a 5000 super cat.. pleasure

954-270-1284

I knew I had a picture just found it from the Lauderdale Boat show.

One can get insurance. You must be willing to live with the limitations of what they are willing to cover. Simply business.

Ditch the Mercury idea; it’s a time bomb behind a turbine.

The Arneson's will hold up to the power better than anything else and don't cost you a fortune.

I am sure you have herd of "Jet Set" . 40 skater here in jersey with BIG turbines ! His Arnesons are the ticket ! They are inspected every time the boat goes out and to my knolage, never had a problem . And he uses the hell out of it ! One of his guys was at my shop a few days ago looking for power upgrade for his truck . Said he "cruises " at 190 now !!!!:eek: :cool:

If it were a jet engine in a jet, I could tell you.:)
A jet engine in a boat? I think I would talk to the guys out there doing this on a daily basis- Arneson, Callun, MTT etc. They have to be picking it up from somewhere. Arneson has been running turbines for a very long time.
Good Luck!!!:)
Jim

While in KW over the Holidays, I went out in a new 46' Cig w/ twin 1075s. Very impressive. They start, idle and run great. The neatest part was you couldn't stall them when shifting gears with big wheels. The computer automatically kept the idle at Mercury's preset rpm.

Found a nice pic. Thanks Ray!

http://www.raymondbaldwin.com/FTLBS/...CN1548_JPG.jpg

[QUOTE]Originally posted by GLH
[B]Found a nice pic. Thanks Ray!



GLH's future upgrades

Not for a while, I think I've achieved my level of incompetence for now! And you should know me by now I'll upgrade the whole package not just parts! :D

Merc's been "introducing" the 1075 (nee 1050) for two years now. I'll believe it when I see them out there in numbers. In the meantime, they have successfully strung a number of us along for two years now...:rolleyes:

If I was in the market for this power, I'd be at Sterling or MTT. Or SeaTek.

KiloKat - Idle air control (IAC) on EFI engines is decades-old technology.

nice looking motor.. i rember that cig at the show.. would like to run a part in a 38ZR

Yes I know they can't run AV-gas. I was just saying for the high hp gasoline motors that require AV-fuel it can be difficult to find on fuel docks.

Thank you for the info on the turbines. Nice to hear from someone who works on them. :) :cool:

If they can get it right. This will be high on the list for my next setup, boat and all.

I think the octane requirements of some engines is why you see so much effort by the top builders going toward NA power, or 'low boost for longetivity' type engines that can run on dock-available fuel.
That high-octane and Av-gas should be right up your alley with your line of work?:D
Although I work on turbines, it's strictly been in the high-dollar corp-jet environment. I certainly would love to have a turbine-powered boat some day, but unfortunately it is out of the reach of my salary. I certainly do love spending time with Steve David at the Detroit Gold Cup each year though. Special application I know, but you haven't seen how a turbine performs in a boat until you see the Unlimiteds!:cool:
BTW, Tulsa, OK training for all my ratings, including all the flight ratings. Spent many a time looking down at Grand Lake through a little Cessna's window building time.:) Hope we can meet in Miami- would love to see all those Cigs at Monty's.:cool:
Jim