Mercury Racing's New Turbocharged Engines Unveiled

[Chris]

how come they went to all that trouble to make an engine and they left the dry sump pump, belt driven on the outside like they forgot about it????

My guess is that they are using some existing pieces. There are a couple of DOHC/4V platforms based around the BBC. If Merc truly wanted to do something profound, they'd have exhumed the Torque project. It was all gear-driven off the front drives- oil, PS and water.

Turbo V-12's?

[Lakeside]

Nice to see something a bit different for a change..

[Quinlan]

[QUOTE=masher44;438480]265 what a joke. Real turbos are coming out of Joplin this year. Merc may need to twist up a tad bit more[/QUOTE)

Yes they are and they are SWEET looking

[Ted]

[QUOTE=Chris;438571]Partially.

You're no longer dealing with a series of explosions exhausting out the back of the exhaust. Each pulse is somewhat "captured" inside the manifold. The turbo's exhaust is more of a stream.[/Q]



A buddy of mine's V10 twin turbo Viper, no mufflers, but I think it still has cats on it. It is a different sound for sure

[Matt Trulio]

More cool stuff from the show, for those of you who can't be there, http://speedonthewater.com.

Sorry I haven't had the time to add photos.

[Powerabout]

My guess is that they are using some existing pieces. There are a couple of DOHC/4V platforms based around the BBC. If Merc truly wanted to do something profound, they'd have exhumed the Torque project. It was all gear-driven off the front drives- oil, PS and water.

Turbo V-12's?

Turboing a v12 makes more sense than a v8 as ( depending on the firing order) you can get a very nice even pulse from the 6 cyl on either side to the split pulse turbo's
not to mention get your 60 degree vee as well.

[Brad]

Because of all the thermodynamic processes going on in the turbo, the exhaust gases are cooled as they pass thru it. As a result, the turbo acts like a muffler. The intake air gets heated up as it is compressed in a turbo or supercharger.

Thanks E Dock DD

[Steve 1]

The turbo bikes are exhausted straight out of the turbo also there is a Program on Speed Channel "Pass Time" the Turbo cars run very well and it is funny to see massive burnouts without the sound usually associated with this from a normal aspirated or blown drag engine.

the first law of Thermodynamics's is also seen here where some of the Exhaust heat is traded for the work of driving/spinning the Turbine section.

http://video.google.com/videoplay?do...29233920951462

[Ted]

More cool stuff from the show, for those of you who can't be there, http://speedonthewater.com.

Sorry I haven't had the time to add photos.

You KNOW how much we like pictures Matt

[Geronimo36]

It's the wave of the future... 4 valve per cylinder is also the future of emissions on boats! 1300 hp, fresh water cooling, aluminum block, dual overhead cams, turbo's.... someone gets it! Just my $.02...

I may not ever be able to afford these puppies but I think they're taking a step in the right direction with the technology and hope that it funnels down.

Also, I agree with Sean that it could result in the phasing out of the 850/175/1200 sci etc if it's successful....

[E Dock DD]

Partially.

You're no longer dealing with a series of explosions exhausting out the back of the exhaust. Each pulse is somewhat "captured" inside the manifold. The turbo's exhaust is more of a stream.

I would agree that this would help perform the silencing.

[Geronimo36]

I just read this on the press release; "From its expansive two-stroke outboard experience, Mercury Racing employed pulse-separated exhaust tuning"

Pulse charging has been around for a long time, glad to see Merc putting it to good use!!! However, pulsecharging has its biggest benefits in engines with cylinders that are multiples of 3 (3,6,9,12).... Anybody remember the Grand National....wink wink...

[MarylandMark]

yet they didn't use that explansive knowledge to put out a 400HP

[Powerabout]

I just read this on the press release; "From its expansive two-stroke outboard experience, Mercury Racing employed pulse-separated exhaust tuning"

Pulse charging has been around for a long time, glad to see Merc putting it to good use!!! However, pulsecharging has its biggest benefits in engines with cylinders that are multiples of 3 (3,6,9,12).... Anybody remember the Grand National....wink wink...

and all the Pulse tuning exhaust patents belonged to OMC

[Geronimo36]

and all the Pulse tuning exhaust patents belonged to OMC

Nice!!!

[Geronimo36]

and all the Pulse tuning exhaust patents belonged to OMC

Nice!!!

Didn't now you could patent physics! lol

[Coolerman]

how come they went to all that trouble to make an engine and they left the dry sump pump, belt driven on the outside like they forgot about it????

i think it takes more power to spin a dry-sump oil pump than what a serp belt system can handle.

[thedonz]

saw this baby today, BADASS, supposedly no lag because exhaust ports are separated in to two chambers per turbo and keeps everything spinning sequentially....that new drive is.....SHORT....need to mount the engines 2" deeper in the boat.....nice for CG......

[Coolerman]

Would love to see when a high octane tune/computer is out for these motors. Also, anyone find out if the #8drive will bolt to a 6 transom assy? Hopefully they offer the drive as a unit separate from the motor.

[glassdave]

checked out that motor today . . . . sick . . . absolutely sick.