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New Mercury 450 sighting

Old 06-05-2019, 10:51 AM
  #81  
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Originally Posted by Capt. Scott Crown View Post
Man, running over manatee's has gotten real expensive.
Especially for the manatees!

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Old 06-07-2019, 09:21 AM
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No, matey, that's Dugong!
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Old 06-07-2019, 11:22 PM
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It is true that compressing air by drawing energy from the residual exhaust gas (turbochargers) is more complicated than subtracting it from the engine itself with a volumetric compressor, but:
1) has already been done by Seven;
2) reliability is not inferior to a volumetric if we consider the millions of turbodiesel engines around the world;
3) last but not least the efficiency of the motor is much higher than that of a supercharged with volumetric because the energy at the exhaust would still be lost.
What would a Mercury outboard be superior to a Seven? In the enormously better power / weight ratio of the 4.6 liter Mercury V8 compared to the 6.2 liter V8 Seven (GM origin). the premises for a great success would all be there
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Old 06-08-2019, 12:31 AM
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Not sure what you are referring to concerning the Seven Marine since it is supercharged and not turbocharged.
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Old 06-08-2019, 12:58 AM
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Mr Blackfin, I mostly agree with what you said, but not all, despite the fact that turbodiesels rule the world with great reliability, the history of powered craft does not give support to equalling the reliability of turbodiesels with turbo gas powered engines, be them marine, the old Verados or automotive including renowned brands like porsche, facts say in no way where they as reliable as they atmosferic conterparts, Diesels are bult very ruggedly that is why they are very heavy when compared to gasoline engines, technology might have improved in some fields but not so much like others like metallurgy, still the new engine might be reliable time will tell, but so far whenever an engine existed in both formats atmosferic and compressed the atmosferic has been invariably more reliable, I believe ( or read somewhere) that small engines with a lot of power do stress more their small parts than a large engine with the same power, which is a reasoning with some logic behind, even diesels built in various versions changing only the pressure that turbos impart to intake air, have smaller and smaller time between overhauls as the power increases, so they may be fast, nice and powerful but odds are against turbo engines being as long lived as their atmosferic siblings, off course it could be argued that engines are quite long lived even with turbos, but if maximum troublefree operation and reliability are paramount, atmosferic would be my choice and the yamaha XTO 425 being the only atmosferic one on that power range should be the most reliable ....... after all if one recall reliable outboards ..... the ones that come to mind as good and trustable are all atmosferic .............. the very many Yamahas four strokes and even some two strokers, the suzuki engines, Hondas .......... off course like everything in boats is opinable ............ but even in aviation charged engines are generalyy considered the less reliable ..........

Last edited by CANARIANFISHER; 06-08-2019 at 01:05 AM.
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Old 06-10-2019, 08:43 AM
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So i've seen that post with the image that mercury is making a announcement next week. It says "our most powerful announcement ever" and the background image looks like the new v8 cowling. Wonder if its going to be a 450 or 500!
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Last edited by mercuryboy; 06-10-2019 at 08:45 AM. Reason: spelling
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Old 06-10-2019, 08:46 AM
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here we go again! just wait a week!
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Old 06-10-2019, 08:48 AM
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Anyone want to guess what is going on the back of the new Competition???
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Old 06-10-2019, 08:52 AM
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isnt there already a thread on this???
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Old 06-10-2019, 09:26 AM
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Whats the date of the announcement? Where is the picture of the cowling?
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Old 06-10-2019, 09:44 AM
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I heard it's going to be diesel. Going to use an updated version of the Ford 6.4L with quad turbos instead of twin.
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Old 06-10-2019, 09:58 AM
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Strange 1st post

I'm guessing it originated from Fond du Lac, WI
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Old 06-10-2019, 10:04 AM
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Mercuryboy making their first post about the new mercs. The mercury people don't have a better way to advertise without starting a dummy post to get people talking? But if it works I guess its clever.
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Old 06-10-2019, 10:11 AM
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Originally Posted by mercuryboy View Post
So i've seen that post with the image that mercury is making a announcement next week. It says "our most powerful announcement ever" and the background image looks like the new v8 cowling. Wonder if its going to be a 450 or 500!
New member, 1st post.
Hmmmm, yea, we are still talking about it.
June 16, can hardly wait.

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Old 06-10-2019, 10:29 AM
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New V-8 450hp coming from the RACE division.
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Old 06-10-2019, 10:37 AM
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Mercuryboy this is THT. Your first post can not be any of the following:

1.) Your disdain for any marine service provider, boat, motor, or trailer manufacturer.
2.) You praising any service provider or manufacturer of anything marine related. You will be considered a fanboy or spammer.
3.) Excitement about any new marine related product.
4.) A post stating that you caught too many or too little fish.

Welcome to THT and enjoy your stay.
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Old 06-10-2019, 12:24 PM
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Mercury have announced there is going to be an announcement.
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Old 06-10-2019, 12:26 PM
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I saw an embargoed press release. It is a new line of electric outboards and trolling motors for the 20HP and under crowd. Mercury is transitioning to be more "green", and plans to switch to all electric outboards by 2023, and they will all be made from recyclable and biodegradable materials.
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Old 06-10-2019, 12:31 PM
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Dear MercuryBoyWonder,

Why was Mercury able to make a V8 4.6 liter motor that weighs about 550 pounds and a I6 2.6 liter motor that weighs ~640?

Ignoring the extra 2 cylinders and extra 2 liters of displacement, does the supercharger weigh 90 pounds?
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Old 06-10-2019, 12:59 PM
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No, but horses are very heavy!
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