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Author Topic:   Miami International Boat Show 2014
jimh posted 02-06-2014 06:30 AM ET (US)   Profile for jimh   Send Email to jimh  
The Miami International Boat Show for 2014 is coming soon, just a week away. The show has attained a special status among all boat shows as being the place where many new products are introduced. It is typical for manufacturers to make new product announcements there. I have not heard of any good rumors about new products for this year's Miami boat show, but I bet there will be some interesting announcements made there. What might we expect? Has anyone heard any good pre-show rumors?
djahncke posted 02-06-2014 10:23 AM ET (US)     Profile for djahncke  Send Email to djahncke     
I understand the Dungaroo will be introduced at the show.
jimh posted 02-07-2014 08:26 AM ET (US)     Profile for jimh  Send Email to jimh     
It is too bad I am not going to the show. I'd like to have a lengthy sit-down to discuss that product.
djahncke posted 02-07-2014 08:55 AM ET (US)     Profile for djahncke  Send Email to djahncke     
Elsa and I are going so we can flush out the details.
bdb posted 02-07-2014 09:30 AM ET (US)     Profile for bdb  Send Email to bdb     
Jim - By "sit down" are you inferring "test?"
boatdryver posted 02-07-2014 09:45 AM ET (US)     Profile for boatdryver  Send Email to boatdryver     
If proven successful in wide use this sounds like a good solution for the many trailerable boats with sleeping accommodations.

hopefully the plastic bags are opaque. ;-)

At a glance on their web site I didn't see any talk about approvals by various agencies or confirmations that the landfill industry will knowingly collect and dispose of these bags.


JimL

Hoosier posted 02-07-2014 12:04 PM ET (US)     Profile for Hoosier  Send Email to Hoosier     
Land fill approval rationale is buried in the FAQ page. This actually looks like a pretty intelligent product. There are lots of cuddy cabin boats that don't have heads, this sure beats the hassle of a porta-pottie.
jimh posted 02-08-2014 08:25 AM ET (US)     Profile for jimh  Send Email to jimh     
Any other product rumors for revealing at the Miami boat show?
Mambo Minnow posted 02-09-2014 09:16 PM ET (US)     Profile for Mambo Minnow  Send Email to Mambo Minnow     
I am eager to find out if Mercury will expand upon the initial success last year of their 150HP Fourstroke. I would like to see some higher HP models introduced.
jimh posted 02-10-2014 09:46 PM ET (US)     Profile for jimh  Send Email to jimh     
Yamaha just sent me an email saying they will be introducing at the Miami Boat Show

--new propellers,

--new outboard engines, and

--new control systems

Their in-line four-cylinder engine line will have a new F115 and F175 models to go along with the F200.

jimh posted 02-11-2014 10:06 AM ET (US)     Profile for jimh  Send Email to jimh     
AMEC have announced they will be showing new automatic identification system (AIS) products at the Miami International Boat Show 2014. They will be showing

--improved, second-generation AIS Class A and Class B transponders

--PC software for navigation called NaviPro ECS

--Android and Apple iOS software called Camino APP

--a frequency modulated continuous wave RADAR

--an AIS man over board (MOB) device


Cf.: http://www.alltekmarine.com/news_detail.php?year=2013&nid=35

jimh posted 02-11-2014 10:14 AM ET (US)     Profile for jimh  Send Email to jimh     
NAVICO have indicated their SIMRAD brand of marine electronics will be making a big announcement at the Miami International Boat Show 2014, as reported by Ben Ellison in his PANBO blog.
blavid posted 02-13-2014 06:57 PM ET (US)     Profile for blavid  Send Email to blavid     
Apparently there is a new 420 Outrage to be unveiled at the Miami Boat Show...!

saumon posted 02-13-2014 07:12 PM ET (US)     Profile for saumon  Send Email to saumon     
They unveil their Innovation awards

http://www.tradeonlytoday.com/2014/02/ miami-2014-annual-innovation-awards-handed/

Mambo Minnow posted 02-13-2014 07:25 PM ET (US)     Profile for Mambo Minnow  Send Email to Mambo Minnow     
Whaler just unveiled a scale model of a 42 FOOT Outrage at Miami Boat show today. The thing is so big, it appears to have Euro style windows on the hull sides. Wonder if they have a production model for demo rides later this weekend?
OMCrobert posted 02-14-2014 09:43 AM ET (US)     Profile for OMCrobert  Send Email to OMCrobert     
Rumor of a 4.0+ liter V6 Suzuki 350hp outboard engine. If it is true, I suspect it will be released today.
jimh posted 02-14-2014 10:54 AM ET (US)     Profile for jimh  Send Email to jimh     
Boston Whaler won an Innovation Award for the convertible bed-to-dining-room feature on the re-designed 345 CONQUEST. This is one instance in which a motion picture recording would be useful to demonstrate the process. Is there any recording available on-line that shows this feature?
saumon posted 02-14-2014 02:28 PM ET (US)     Profile for saumon  Send Email to saumon     
From 0m20s to 1m10s:

http://www.sportfishingmag.com/fishing-boats/ video-boston-whaler-345-conquest

jimh posted 02-14-2014 04:43 PM ET (US)     Profile for jimh  Send Email to jimh     
Fantastic find by Saumon. That is a wonderful demonstration of the feature of the new 345 CONQUEST which won an Innovation Award at the Miami International Boat Show 2014. Many thanks for giving that link.
Mambo Minnow posted 02-14-2014 06:29 PM ET (US)     Profile for Mambo Minnow  Send Email to Mambo Minnow     
Mercury disappointed me today. They unveiled WHITE Verados and a Pro Series Verado 200 HP, but no new expansion on the 150 Fourstroke highly successful introduction last year.
jimh posted 02-18-2014 12:51 PM ET (US)     Profile for jimh  Send Email to jimh     
I don't understand the basis on which the introduction of the Mercury 150-HP FOURSTROKE a year or so ago is being judged as "highly successful." Exactly what was the metric used for "success" and what was used for "high"? Also, it seems like the introduction went from just successful to being highly successful in the last few days.

I don't think anyone has any market share information, and particularly market share information with enough detail to be able to determine the sales of a particular model. Also, no one has any information on Brunswick's expectations for sales of that model. Judgement of the success of the product should be left to Brunswick to decide. If they thought they could sell 500 engines and ended up selling 800, it might be a success. But it seems to me that the attachment of the terms "successful" and "highly successful" are somewhat unqualified.

I see that the 150-HP FOURSTROKE did have some success: it was adopted as an optional engine choice on a few models of Boston Whaler boats. In that regard, it has beaten out its Mercury stablemate OptiMax.

OMCrobert posted 02-18-2014 12:59 PM ET (US)     Profile for OMCrobert  Send Email to OMCrobert     
I would say it [probably means the Mercury 150-HP FOURSTROKE] is high[ly] successful because it falls into several of the following factors:

1.) Reliable and a good street record for reliability
2.) Lightweight, affordable, reliable, simple
3.) Very easy repower, bolt and go for most applications
4.) Offers easy starting, no smoke and good economy
5.) Small and compact
6.) Easy for DIY maintenance
7.) Revolutionary QR code ;)
8.) It does what is should without issue

I think the combination of all of these factors make the engine highly successful.

jimh posted 02-18-2014 03:57 PM ET (US)     Profile for jimh  Send Email to jimh     
So you can determine the success of an new engine product introduction without having any data about sales, market share, and profit?

Also, I have to question the "street record" on reliability. As I recall, within about a month of the introduction there was a very interesting video posted on YouTube showing the connecting rod of the Mercury 150-HP FOURSTROKE sticking out through the side of the engine block. Of course, that is just an anecdotal report. There is no data about reliability.

Your second point repeats "reliability." You already mentioned that once, and I explained you have no data.

Just about all other outboard motors possess the same "bolt and go" characteristics for re-power. By that measure, all of them are therefore successful. Since this measure does not offer any discrimination, we cannot really use it as a metric for success.

Re easy-starting, no smoke, and good economy, these characteristics are shared by all modern outboards. See my comment about about not using a feature that is shared all outboards as a measure of success for one of them.

As for the "easy maintenance," it would be much easier to maintain an engine that did not need the maintenance procedures at all, even if those procedures are said to be easy. "Easy" is always relative to the skill of the owner. Again, not much of a measure of success.

Yes, the QR code. Oh my, grasping at straws.

As for "without issue," I can safely say that no outboards I know have ever reproduced themselves, so they are all without issue.

What is proposed here by OMCrobert is a tautology, that is, a logical process that is always true no matter what it analyses. You could deem any modern outboard to be "highly successful" on the metrics used by OMCrobert.

OMCrobert posted 02-18-2014 05:00 PM ET (US)     Profile for OMCrobert  Send Email to OMCrobert     
According to Jimh's logic we would never be able to declare an outboard engine a success because we dont have any "data about sales, market share, and profit." Same for reliability since you will never had concrete global numbers.

I also disagree that other engines are bolt and go. You can take a 1985 150hp Mercury/Mariner and bolt/plug this new engine in its place and go with this new engine using existing controls, key switch, gauges, wiring harness. It is plug and play, no splicing of wires or running cables for electronic controls and you can even use analog gauges even though the engine is digital. You can plug in an adapter in 10 seconds and use 30 year old equipment. Not many engines can do that.

I think most reasonable people will agree the new 150hp Four Stroke Mercury is a successful engine if not highly successful.

frontier posted 02-18-2014 05:29 PM ET (US)     Profile for frontier  Send Email to frontier     
The Chevy Volt is considered 'highly successful' by Chevrolet and General Motors.
But the facts are very few people are buying it or want one.
Even with all the taxpayer 'rebates', sales are poor. Not to mentioned poor quality. Toyota Prius still outsells it 10 to 1.
People don't want to pay more for less.
Did you notice a Chevy pace car caught fire at a NASCAR race last weekend? Not a special race car - the factory made PACE car!
Ironically, the winner of the race was a Toyota Camry.
jimh posted 02-18-2014 05:37 PM ET (US)     Profile for jimh  Send Email to jimh     
I consider myself a very reasonable person, but I have no idea if the Mercury 150-HP FOURSTROKE has been a success for Brunswick and if it were a success if it was a highy successful product for them. It is a nice engine, it is very simple, it sells for a low price. It appears to be selling. But I just thought it was odd that of all the engines on the market that this one could be judged highly successful (twice) in this discussion of new products at Miami. So far I have not seen a single metric for deciding success that could not be applied to all the other engines on the market. By these measures, all modern outboards are successful and highly successful.

It might be better to look at some data given by Mercury to investors for some sort of evidence about the success of the engine. When Mercury makes public statements to its investors about its products, it will very likely be putting the most positive spin possible on the information, but they will have to stick to the facts (unless they are going to commit a fraud). If you want to declare the Mercury 150-HP FOURSTROKE to be highly successful, it would be best to quote Dustin McCoy or some other Brunswick executive to make your point.

Also, I think there is quite a bit of irony that we have no news of any more engines from Brunswick based on this 150-HP FOURSTROKE. Since about one-second after this engine was introduced there has been talk about introduction of more engines like it into the Mercury family. Now, if that happened, you might want to cite that as a sign of success. But here we have just the opposite, no new engines based on the 150-HP FOURSTROKE, but we still are told it is highly successful. I find that hearing someone make those two statements together gives me some dramatic irony. (In dramatic irony, the character in the drama saying the line does not realize there is irony in what he is saying, but the audience does. That is what seems to be happening here.)

OMCrobert posted 02-18-2014 05:42 PM ET (US)     Profile for OMCrobert  Send Email to OMCrobert     
I respectfully ask this of you Jimh

Please give us metrics in which to judge if an outboard engine is successful given the fact that we will never know any numbers on sales/market share or warranty claims.

Having the company that builds it saying that it is successful is not enough in my humble opinion.

DVollrath posted 02-18-2014 05:46 PM ET (US)     Profile for DVollrath  Send Email to DVollrath     
Frontier,
I own a Chevy Volt, and I know personally 2 others who have one as well. Our vehicles have all been trouble free, and we are quite happy with our purchases. It is a really cool design, and does exactly what I thought it would do before I made the purchase.
I'm not sure what your personal experience with a Volt is, but I assume you have one since you periodically raise this topic. I'd be interested in hearing any first hand feedback from your Volt experience.

(whaler content): I guess my one disappointment with the vehicle is that I cannot tow my Outrage with it. Oh well...

Back to Jim and Robert.

Dennis

jimh posted 02-18-2014 05:52 PM ET (US)     Profile for jimh  Send Email to jimh     
OMCrobert-I do not make announcements of which engines are highly successful. I tend to refer to engines just by their name, and I don't invent or add terms like "highly successful" to the names. If I have data, I tend to share it.

The reason this sidebar came up was there are now three mentions in this thread that the Mercury 150-HP engine is to be deemed highly successful, but on examination of the basis for this there is nothing in support of the claim. If you want to make a claim it would be a good idea to have at least a little basis in fact for it. You should take the hint I gave you about Mercury's public statements. You might find something to help you make your argument.

OMCrobert posted 02-18-2014 06:23 PM ET (US)     Profile for OMCrobert  Send Email to OMCrobert     
So according to Jimh's logic, no outboard engine can be or should be called successful or highly successful.
frontier posted 02-18-2014 07:47 PM ET (US)     Profile for frontier  Send Email to frontier     
Dennis,
Glad to hear you like your Chevy Volt.
I was a professional buyer for years and it was my job to buy things on: Quality, Service and Price. In that order. It included cars and trucks.
That's how I ended up buying and using Boston Whalers! Quality was #1.
My research shows very high frequency of repair for GM vehicles - year after year. A decades long track record. And personal experience.
I will not buy a Chevy Volt or any GM vehicle.
Because, in my view, GM is not to be trusted or believed. Especially with high tech. That is one of the reasons they were near bankruptcy a few years ago. As collectors know, even most Corvettes are very poor quality (but they sure look nice!).
I buy Toyotas because they have a decades long, excellent track record - and they just plain work!
To answer your question about the Chevy Volt quality issues, here a just a few: Battery pack fire problems, check engine light staying on, center video stack display switches modes by itself, faulty engine coolant bypass valve position sensors, overheating, 'clunk' noise - bearing issues, roof leaks, no cabin heat while on battery mode, climate control issues - it goes on.
I'd say you and your friend got 2 of the good ones.
Maybe you got 'middle of the week' build cars and the Monday and Friday cars had the problems!
DVollrath posted 02-18-2014 09:55 PM ET (US)     Profile for DVollrath  Send Email to DVollrath     
Frontier,
Perhaps I, my brother, and my friend of a friend did get lucky, but we didn't seem to be alone in this regard. The Volt topped the Consumer Report owner satisfaction survey in 2011 and 2012 with 92% and 93% of owners saying they would buy the car again.

It was displaced by in 2013 by the Tesla S, with a record 99% of respondents indicating they would be repeat buyers. The Volt fell to 3rd, with only 91% indicating repurchase.

The Tesla is another one of those fire traps as well, although I'm not sure of the circumstances. In the case of the Volt, the fires occurred during National Highway Transportation Safety Administration (NHTSA) crash testing in 2011. GM has applied a fix, and the NHTSA has closed the investigation. The Volt received NHTSA 5-star rating in 10 of 12 categories, and 4-star in the remaining 2. Another rating agency, the IIHS, gave the Volt its highest mark in all but 1 of their 21 categories.

I think we'll just need to agree to disagree on this one (unless I can take you for a test drive :), and move back to a topic where we are more aligned: Whalers are great.

Peace.
Dennis

frontier posted 02-18-2014 10:31 PM ET (US)     Profile for frontier  Send Email to frontier     
Sounds good, Dennis.
Gotta love those Whalers and Seahawks!
jimh posted 02-18-2014 10:55 PM ET (US)     Profile for jimh  Send Email to jimh     
OMCrobert postulates:

quote:
So according to Jimh's logic, no outboard engine can be or should be called successful or highly successful.

OMCrobert--you have an amazing ability to invent things and attribute them to other people, then apply your own logic, which you then attribute to others.

As I pointed out, you will have to ask the manufacturer if their outboard engine product was successful. They can tell you how many they sold, what market share they obtained, and how much profit they made. That was my recommendation. You seem to have ignored it completely.

Next, you add your view, expressed earlier, that you cannot trust any manufacturer to tell you the real information, and decide that the success can never be known. That is your theory, not mine.

I explained that I cannot say if the Mercury 150-HP FOURSTROKE was "highly successful" because I have to data about its sales. If I had the data, I could tell you if it was successful.

By the way, you seem to be completely ignoring the obvious: I pointed out that one of the main claims repeatedly made by the 150-HP FOURSTROKE cheerleading society was not confirmed at Miami: there were no new models from Mercury introduced that were based on the 150-HP FOURSTROKE design. This has caused disappointment in the progress of Mercury. How can we have something that is highly successful and disappointing at the same time to the same people?

OMCrobert posted 02-18-2014 11:15 PM ET (US)     Profile for OMCrobert  Send Email to OMCrobert     
"So you can determine the success of an new engine product introduction without having any data about sales, market share, and profit?" -Jimh

Since this information is not public knowledge and no one here knows it, I think it is logical to determine that by your standards, we can never call an outboard engine successful. I think any reasonable person will come to the same conclusion based upon your statements.

Also the following statement makes me laugh.

"As I pointed out, you will have to ask the manufacturer if their outboard engine product was successful." - Jimh

I respectfully believe that is pure nonsense and not a real answer.

jimh posted 02-18-2014 11:50 PM ET (US)     Profile for jimh  Send Email to jimh     
OMCrobert--I am glad you are coming 'round to my point of view. Now if you will just kindly stop announcing which outboards are successful and which aren't, we could get back to boating topics.
jimh posted 02-18-2014 11:52 PM ET (US)     Profile for jimh  Send Email to jimh     
To get back to the Miami Boat Show 2014 and new product introductions, I also have noted that there was not big product introduction from Evinrude. This surprised me because the E-TEC is the most highly successful outboard engine of all time.

(There, see how easy it was to say that?)

hauptjm posted 02-19-2014 01:59 PM ET (US)     Profile for hauptjm    
According to our friend Webster:

quote:
suc·cess·ful adjective \-fəl\

: having the correct or desired result : ending in success

: having gotten or achieved wealth, respect, or fame


Since, achieving wealth, respect or fame as a product (and not human) is impossible, we have only the first offering to apply. This being the case, all outboard engines should be considered a success if they are sold and generate something to the bottom-line of the corporation: ...desired result: ending in success.

To state a product as highly successful, the success can ONLY be attributed to the corporation, designers or engineers as it surpassed their expectations, profits, reliability, etc. Any other use attributed to the product is simply benign marketing speak that truly has no significance whatsoever.

Madison Avenue has used terms like this forever - regardless of what it means: as long as it sounds good!

Binkster posted 02-19-2014 02:13 PM ET (US)     Profile for Binkster  Send Email to Binkster     
In my opinion no modern outboard can be labeled as highly successful......yet. Outboards that can be considered highly successful were manufactured in similar form or improved for decades. You know which ones they are, the OMC 50 hp 2 cylinder 1971-2005*. Inline 6 Mercs from 1957-1986*. OMC 25-35hp twins, 1976-200?*. Inline 4 cyl Mercs from 1954- 1987*. These motors just come quickly to mind, there are others. I personally don't put the V4 OMCs in the same class as the above although the first ones were built in 1958 and they built them for decades, but some were much better than others.

* from memory, don't have time to look it up.

rich

Peter posted 02-20-2014 07:57 AM ET (US)     Profile for Peter  Send Email to Peter     
It does not surprise me in the least that Mercury made no announcements regarding an "expansion" of the 150 FourStroke. (I interpret "expansion" to mean more HP out of the block).

First, Mercury's product launch hype was all about low output. Their hype was and still is that this motor has large displacement but only puts out 150 HP such that the motor isn't "working" hard so it should be very durable. In other words it's overbuilt. To come out with more HP on this block would be contrary to the central advertising theme.

Second, the motor only being out a year or so doesn't have much of a track record yet. I have seen them at boat shows but I have yet to actually see one running on a consumer's boat in my area. So to squeeze more out of it, if they can, might be risky to the durability theme they trying to support to get product acceptance in the marketplace.

They may do it some day, but I think it is too soon.

Spuds posted 02-20-2014 05:35 PM ET (US)     Profile for Spuds    
They had the 350hp V-8 Yamahas at the Houston Boat Show second week of January.

There was a 39' Contender (I think) with three of them mounted on the stern.

T first I thought the 350hp would be a good repower for a classic Outrage 25. that was before I saw the 763# weight rating.

Peter posted 02-20-2014 05:48 PM ET (US)     Profile for Peter  Send Email to Peter     
Besides the weight, the F350 is gianormous and would probably look out of place on the low freeboard classic Outrage 25.
macfam posted 02-20-2014 08:01 PM ET (US)     Profile for macfam  Send Email to macfam     
The outrage 25 really wants a more light weight engine.
A 300 E-TEC might work well..
jimh posted 02-20-2014 09:37 PM ET (US)     Profile for jimh  Send Email to jimh     
Expanding the engine block of the 150-HP FOURSTROKE model into higher power models is blocked, as Peter described, by the whole concept of the technological approach. Maybe they could bore the block to get displacement up, say perhaps to 3.3-liters. If they made a 175-HP with 3.3-liters it would be producing 53-HP/liter, which is not too much different from the 50-HP/liter of the original 150-HP engine.

Expanding the engine block of the 150-HP model into lower power models is possible for perhaps an engine in the 115-HP to 125-HP range. The present model 115-HP has only 1.7-liter displacement. That means it is making 67.6-HP/liter. That is quite distinct from the other engines in the series. The 150-HP with 3-liters is only making 50-HP/liter. If they made a 3.0-liter 125 it would be making 42-HP/Liter. That is about the same ratio as the present Mercury 75-HP FOURSTROKE, a 1.7-liter engine, which makes 44-HP/Liter.

I think boring the block larger is the easiest way to get more displacement. If you changed the stroke you would need a different crankshaft. If you change the bore you can just use different pistons. To increase volume displacement by a ratio of 1.1:1 the radius of the cylinder would have to increase 1.1^0.5 (since the height or stroke stays the same) or 1.049.. The present cylinder radiu is 2.0-inch. That would mean the bore would have to increase to 2.0976-inch. I think that is a lot of over-bore. Could the casting tolerate that much?

Peter posted 02-21-2014 08:49 AM ET (US)     Profile for Peter  Send Email to Peter     
I vaguely recall many, many years ago reading an article about the Porsche 944 in one of the car enthusiast magazines. I remember that the article had made comments about the 3 liter displacement of 4 cylinde Porsche 944 gasoline that made it seem exceptionally large. I don't remember the reason behind that. And if you look back then once the displacement got over about 2.5L the automakers would switch to a 6 cylinder engine.

This Wiki article en.wikipedia.org/wiki/Inline-four_engine suggest that the practical limit for a 4-cylinder is 2.7L.

If that article is correct (it is a Wiki article after all and of course everything on the Internet is true and factually correct), I don't think there is any chance that the 3.0L 4-cylinder, 4-stroke Mercury 150 will be bored out or "stroked" to make a 3.3L 4-cylinder, 4-stroke 175 HP low output outboard.

A reasonable check on that speculation can be found in the Mercruiser product line. Mercruiser has a 3L 4-cylinder, 4-stroke I/O engine which produces 135 HP. That motor has been around a long time and I do not believe that Mercruiser has ever increased the displacement or pushed the HP rating past 150 HP.

Jefecinco posted 02-21-2014 09:27 AM ET (US)     Profile for Jefecinco  Send Email to Jefecinco     
I'm unable to believe there is a practical limit to the displacement of a four cylinder engine. It is frankly ridiculous. If you add some qualifiers such as weight or dimensions, then yes, there are limits.

It is difficult to boost HP to any serious degree without increasing displacement if an engine is normally aspirated unless the original version was intentionally built in a derated configuration with the intention of increasing the HP output in later versions.

Compression increases are a tried and true method of obtaining inexpensive additional HP. Lightening of flywheels and reduction of parasitic loads such as alternators are other low cost HP enhancing methods. Improved ignition can be useful and easy though most if not all recent engines are probably built with very refined ignition systems. Crankcase windage improvements can add very modest improvements. Beyond that, HP increasing modification become more expensive. Enhanced fuel delivery and combustion air intake and exhaust modifications and reciprocating component lightening can add significantly to increased HP output but the cost is much higher. RPM can be increased but the practical limit of reciprocating race engine is probably less than 10,000 today.

Butch

Peter posted 02-21-2014 09:55 AM ET (US)     Profile for Peter  Send Email to Peter     
In further looking at it I see that Mercruiser once had a 3.7L four cylinder called the 470. I always thought that was a six but apparently it wasn't. So conceivably they could go to 3.3L but Yamaha already has that displacement in a six cylinder and if 3.3L in a four cylinder was practical even for an outboard motor, wouldn't they have gone that route to save weight and cost?
OMCrobert posted 02-21-2014 10:31 AM ET (US)     Profile for OMCrobert  Send Email to OMCrobert     
Look at what OMC did for so many years with a successful platform. They built upon the platform by simply adding or removing cylinders.

They standardized the product components and used the same systems.

V4 2.0 liter
V6 3.0 liter
V8 4.0 liter

Built upon the same platform but added or subtracted cylinders to expand the line up and horsepower range. This is a much better method in my opinion because it allows for standard parts and simplification of the systems. This can be traced back further to the concept of the 71 series with Detroit Diesel as well.

I always felt this was the best concept for marine engines due to the constraints that we face in the marine industry but no one else followed this idea.

jimh posted 02-21-2014 10:40 AM ET (US)     Profile for jimh  Send Email to jimh     
The limitation of in-line four-cylinder engines may be related to problems of balance. The 1.7-liter Mercury in-line four-cylinder engines used in the FOURSTROKE series do not have balance shafts. I believe the conventional wisdom is that for small-displacement engines the vibrations from the imbalance of the piston movements inherent in the in-line four-cylinder configuration can be simply neglected, and the vibration tolerated. Once displacement increases, with perhaps 2.5-liter being a threshold, with more weight in motion, the vibration from the imbalance becomes a concern. The usual solution is to add the complexity of more rotating components in the form of balance shafts that are designed to cancel or minimize the natural imbalance of the in-line four-cylinder.

I forgot to take this problem into account in my suggestion to just bore out the existing 3.0-liter block. If you put in larger pistons, you would have to change the balance shaft compensation, I suspect. This seems to block the expansion of the 3.0-liter block to higher horsepower models, unless the entire approach of getting good power from high displacement is abandoned.

seahorse posted 02-21-2014 11:23 AM ET (US)     Profile for seahorse  Send Email to seahorse     


Just add 2 more cylinders to the 3.0L 150 hp to make a 4.5L block. That would be a super easy and super economical 225 hp without any extra tweaking. Perhaps 250 hp or more with variable camshafts. Even more with some performance work or even a supercharger !

Merc would then have a straight six with the same output as the supercharged Verados, and the manufacturing costs were be significantly less.

Peter posted 02-21-2014 11:30 AM ET (US)     Profile for Peter  Send Email to Peter     
I vaguely recollect the car enthusiast magazine article talking about balance being a problem with large 4 cylinder motors.

Adding cylinders to the in-line outboard power head increases the motor height and raises the center of mass/gravity more quickly than in the case of the V configuration. A straight 4.0L inline 6-cylinder 4-stroke would probably be one very tall outboard motor. I believe that is one factor as to why Mercury went with the 2.6L 6 cylinder configuration with a supercharger -- cuts down on motor height and puts the center of mass/gravity lower.

Mambo Minnow posted 02-21-2014 06:31 PM ET (US)     Profile for Mambo Minnow  Send Email to Mambo Minnow     
Very disappointed Mercury did not debut a 200HP+ model based on last years 150 HP Fourstroke. Going to the Boston Boat Show tomorrow, hope to ask more at the Mercury display.

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