400 hp Merc 2-srtoke...

[X-Rated30]

Heard it's coming next year. I need more info. I guess I don't spend enough time on the board to know where it is -- I know its here, but I ran a search and came up empty.:cool:

[merccoop]

I don't know, I have yet to hear of any sort of 400hp 2stroke in the works. rumors or otherwise. Definitely not by next year. I could see maybe a 350hp opti, MAYBE. I think its all about how much more they can stretch the 3.2l and still be considered a consumer outboard (not to mention emissions regs). The 4 stroke L6SC maybe, but with that thing being already strung out to 300+, I can't see them being able to produce a RELIABLE 400hp with that set up. I'm sure it would be awhile till 400hp. I predict that there will be some sort of a 4 stroke that will be introduced at some point that will be 400hp+ with in the next few years. I mean they have to be able to compete with where the offshore center console market is going. Plus there is always being able to claim you have the big dog, ya know? But who knows, thats just my .02

[RNM018]

You must be thinking about the Wayne Taylor motor project . It's not mercury, It's just plain MAD ! Rich Martin 018:eek:

[SUPAJAY]

I think the verado has more than enough potential to make 400hp.

[whipper]

I have an artical by the chief engineer and president of reaserch and development for Merc Claus Bruestle and in it he says they already can make 400 hp with the verodo but its all up to the market when or not they ever mass produce it. The artical is out of Last Septs PowerBoat. James

[merccoop]

I am not saying it can't make the horsepower, its just they wouldn't be able to sell one right now that makes that much. I have seen the L6SC make more hp, but once they get over a certain hp, they start becoming a ticking time bomb. Believe me, as is, boosting the verado to 400hp will need an expensive rebuild much before a 280 would!!

[NNT]

I don't want to start any wild rumors, but I heard the 300 Opti already puts out over 450 hp :D

[Liquid Force]

I think they will step up the game once the see how the new Yamaha V8 350hp does, if it kills verado sales watch Merc pull out a bigger HP motor.

I do wonder how much long term durability there is in a boosted 2.6 litre 6 cylinder versus a 5.3 V8. IF I were in the market I would be buying the yammy, and I am a Mercury person as a genrral rule.

[neveredge]

I don't want to start any wild rumors, but I heard the 300 Opti already puts out over 450 hp :D


You heard wrong, it's more like 550 hp.:eek:

[kimswang]

I do wonder how much long term durability there is in a boosted 2.6 litre 6 cylinder versus a 5.3 V8.

Not really, huh? If compared to the old OMC 2 strokes and the way the MX competition is going - is there any doubt??? NO, NOT REALLY!!!

[Liquid Force]

Not really, huh? If compared to the old OMC 2 strokes and the way the MX competition is going - is there any doubt??? NO, NOT REALLY!!!

I think we are agreeing....

[kimswang]

I think we are agreeing....

:D:D :D

[bigbore]

You must be thinking about the Wayne Taylor motor project . It's not mercury, It's just plain MAD ! Rich Martin 018:eek:

That's whats up,e.p.a. won't allow a production 2 stroke (from merc.)in the 400 h.p. range,very doubtfull,in more ways than one.

[MarylandMark]

Yammy at 804lbs for 350HP- ouch....

[Liquid Force]

Yammy at 804lbs for 350HP- ouch....

But if thats going on the back of a 40ft centre console with three others than thats not bad at all, what would 2x700hp diesel motors weigh?

[RichS]

About a 400 hp 2.5 Merc. I got one sitting in the shop:p :D

With the epa getting their say with the Dems controling, a new production 2 stroke isn't going to have a chance:mad: :mad: :mad:

It wouldn't be that big a deal to intercool and put a bigger blower on a 4 stroke.
Not that I think one of those overgrown POS's will do any good on a light weight pocket rocket (boat). But they DO build a light offroad scoot motor...

[offshoresteve]

Yammy at 804lbs for 350HP- ouch....

Hell it might as well be a diesel at that weight what a pig! Almost 300lbs heavier that 300xs for only 50Yamaha hp:D

[PVProduction]

A V8 would produce much more torque than a V6 and be able to spin a higher pitch prop to produce more thrust at a lower rpm. I haven't yet looked at the torque numbers for the V8 Yamaha, but that is 350 hp with a great deal more torque. Also, V6 engines are inherently unbalanced and require some kind of counter balance. V8's are inherently balanced (so are in line 6's).

:) :confused: :D

[MarylandMark]

But if thats going on the back of a 40ft centre console with three others than thats not bad at all, what would 2x700hp diesel motors weigh?

Outboards vs inboards as you know are 2 whole different ballgames as far as COG and weight distrubution- apples and oranges.

4 350's? 3200LBS! Still WOW! For reference twin Merc 700SCi's would only be 1400LBS...

[Dd24skater]

It's not like Mercury to be beat in HP classification.
You have to know something is comming.

What would Carl Keikiefer say about being beat in the HP race by Yamaha?

[Bruce Washburn]

I think the 4 stroke Merc can produce 400 but I would question the longevity of motor for production boats. Yamaha, suzuki, and Honda should all have the technology to build some awesome 4 strokes. The big question in my mind is where do they draw the line on price weight and performance of the engines. I have got to think that there will be a dollar and weight threshold where consumers move to stern drives/inboards. Short of the CC fishing boats not many can handle the weight of a 350 Yamaha 4 stroke.

does anyone have an idea of what dealer cost is on a new 350 Yamaha or the big Verado??

[Liquid Force]

Outboards vs inboards as you know are 2 whole different ballgames as far as COG and weight distrubution- apples and oranges.

4 350's? 3200LBS! Still WOW! For reference twin Merc 700SCi's would only be 1400LBS...

Thats why I said diesel, Very few diesel motors that have 700hp each that would weigh less than 3200lbs (total for the pair) by the time you took, transmission, driveshaft's, skeg's, rudder, hydraulic steering etc

Yes a pair of 700SCi weigh less, not very practical in a fishing boat however.. don't think they want to pull them out every 100 or so hours for a freshen up...

Understand comment re COG, but aren't most of those boats setup as V-Drive, with the motors in the arse end anyway?

and four was probably getting a little extreme. 3 would have been a better example.

[whipper]

Whats a Formula one car got for a motor? 250 lb 1.6LT 900hp V10? Or close to that i cant remember but the honda one is like that. Also Atkins rotary power marine makes a marinized 400 hp Rotary that wieghs 300lbs and can run on any fuel! 10 grand complete! 2foot square should fit on top a Merc lower unit just fine. Problem solved. Merc cant do that because they dont have rights to the rotery engine or im sure they would have been on it. The touque curve is flat from 2000 to 7500 at 300!! Slap on a 32 wheel and let er eat!! Mercs been prototyping that out board turbine also for years I wonder whats happening with that? James
James

[kingmate]

Ok here is what i think about this fourstroke motor issue if yamaha builds their outboards as good as they build their snowmobile motors then maybe i might look into getting one for my boat and adding my own boost for it if that thing is making 350 naturaly aspirated then whoa momma look out with a liitle boost behind it i built a 2003 rx1 yamaha 4 stroke snowmobile with a turbo had it dynoed at 4500 feet above sea level and it kicked out ove 350 HP with 185 ftlbs of torque and that was before i hit the 60 HP shot of noss so if a little 1000cc inline 4 banger can make that kind of power i can only imagine what that big V8 can do and as for reliability i rode my monster 4 stroker with all that power for 3 years and not one problem. So like i said if yamaha builds all their motors with the same goal in mind (reliability and power ) well i might just have to look into one of those bad boys.

[Madpoodle]

Keep in mnd, the F350 while heavy, has excellent torque.. Twins push a 36 straight V center console 71 MPH with 5 guys, 200 gallons fuel.. Not a bad #... If Merc wants to beat them at that game they need a lightweight 350, then worry about a 400...

BTW, since the Merc 300's at the Miamuh show were actually 275's, has anyone seen the real deal yet??

[1BadAction]

BTW, since the Merc 300's at the Miamuh show were actually 275's, has anyone seen the real deal yet??

they were 300s- stop believing all the retards on the internet and phone and talk to the merc guys at the show.


I like how yamaha or suzuki can build a reliable 4 stroke but merc makes one with internals that look like they can survive a hand grenade shot, and they aren't going to last. :rolleyes: just plain ignorance or WHITE GUILT. yea, a whole lot of engineering went into those oil eating yamahas and zukes, turning a car motor on end is soooo hard :rolleyes:

[Cleavor]

I think Kingmate hit the nail on the head when he called the Yamahas "SOW - MOBILES". Typo or Freudian slip?

[Fish]

I think John Marles has been making 400hp out of a 2 stroke. Maybe he will chime in.

[merccoop]

BTW, since the Merc 300's at the Miamuh show were actually 275's, has anyone seen the real deal yet??

Yeah, thats a bunch of bs about not being 275's. I have had first hand experience driving a 300 verado on a 22 foot ranger. Granted, at the time, they still had 275 cowling. Besides completely not being set up for top end, it was pretty fun to get out of the watson bayou and into the coastal waters of panama city in that beast. We called it the aircraft carrier because the deck of that ranger was absolutely massive....

http://www.flickr.com/photos/59086966@N00/493153189/

[Madpoodle]

So, what your saying is the 275 S/N on the engine in the booth, and the 4) 275 ECM's on the SeaVee on display ALONG with the 4) 275 S/N's lie?? I'd be more inclined to believe the cowlings lied, much like 'zuki's did last year..

[Scream And Fly]

BTW, since the Merc 300's at the Miamuh show were actually 275's, has anyone seen the real deal yet??

I have - at the Miami Boat Show. They were real 300s.

-- Greg

[MarylandMark]

The word I heard was they were real 300's which will use the same block and gear cases as the other Verado's- use what is in stock vs. re-invent the wheel...

[Fish]

Madpoodle, what's up my brotha! Not sure if you saw the post on the donzi board (I had to swallow a li'l pride to go back there ;) ) but wanted to thank you again for your generous contribution to the auction to help out Joe with his medical bills.

Budman and I are probably going to be down in s. Fla in the next couple of weeks, I will give you a shout when we get there; the least I can do is buy you dinner.

later,

fish

[Madpoodle]

Hey Fish!

Saw it, Thanks for the kind words AND enduring the stress of posting, but you're ruining my reputation over there man!!! :p

Dinner sounds good, let me know when you guys are coming over!!

MM, On the subject of using parts: OK, I can buy that, but once again, having not had the hood off of the new 300's yet, are they using the clearly labeled 275 Verado ECM's on them, or do they have their own?? All the engines I saw on the SeaVee boat had the 275 ECM's and unit serial numbers. The unit on display inside had a 275 S/N.. Who here is a Merc dealer and can run those numbers?? :confused:

BTW, not arguing here guys, educate me a bit. Hell, what I know about eggbeaters would fill one post it note.. I do know what I saw and photographed, now I'm just curious..

The truth is out there... :D