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Mercury 400R
https://hpbc.ca/viewtopic.php?f=2&t=2684		 Page 1 of 3
Author:  OneCycle [ February 12th, 2015, 12:30 pm ]
Post subject:  Mercury 400R
http://mercuryracing.com/outboards/engines/verado-400r/



Still quite heavy.

WOT from 6400-7000 however
Author:  OneCycle [ February 12th, 2015, 12:32 pm ]
Post subject:  Re: Mercury 400R
This is the future I think.. With a single tune I wouldn't be suprised if you can get 500 plus hp out of this platform
Author:  OneCycle [ February 12th, 2015, 12:35 pm ]
Post subject:  Re: Mercury 400R
Doc, do you think this will drive yamaha to supercharge the sho?
Author:  FluKy15 [ February 12th, 2015, 4:43 pm ]
Post subject:  Re: Mercury 400R
How do the superchargers work on these motors? I know how they work for cars, but for boats...? Could you change the pulley size similar to a car supercharger, make more boost, make more power?
Author:  BoomerMuskoka [ February 12th, 2015, 5:17 pm ]
Post subject:  Re: Mercury 400R
2.6l ;)
Author:  DoktorC [ February 12th, 2015, 10:58 pm ]
Post subject:  Re: Mercury 400R
OneCycle wrote:
Doc, do you think this will drive yamaha to supercharge the sho?


Nope...they don't seem to want to to go that route...even though they have a sweet 1.8L S/C'd motor in the PWC. It's a tricky balance..the SHO makes 300hp and is MUCH lighter so for our boats if you wanted to go 4 stroke...that's the way. The Verado's are a nightmare in general but on a bigger boat that can take the weight...400hp is a no brainer. I was hoping for a new 200 without a supercharger....I don't see it...fucking merc.

If I were a guy like superbender I'd have an MPI/rotrex supercharger under the hood faster than you could say verada...the PWC has a water/air intercooler...so there's some off the shelf parts that would add 25% (way more if you built it for boost) to the SHO pretty quickly. Simon can mod that ecu....and with S/C'd boost it's pretty much a constant boost curve which makes the fuel curve less insane to pin down.
Author:  Wideopen [ February 12th, 2015, 11:22 pm ]
Post subject:  Re: Mercury 400R
FluKy15 wrote:
How do the superchargers work on these motors? I know how they work for cars, but for boats...? Could you change the pulley size similar to a car supercharger, make more boost, make more power?



I imagine for space saving reasons, these superchargers would be gear driven off the crank. could be wrong never had the lid off one. plus youd need a re-tune even if you could add more boost.

Not that id ever buy one, but I was really hoping to see an actual racing motor from mercury. I would guess the multi engine center consoles, fishin boats ect would be more the market there after which is understandable. But how cool would a 15" semi light 400 hp outboard be!
Author:  Himagain [ February 13th, 2015, 10:22 am ]
Post subject:  Re: Mercury 400R
Meh.... 400 is weak just suck it up and spend the money on the new 7marine 627.....

http://www.boatingmag.com/worlds-larges ... -show-2015
Author:  OneCycle [ February 13th, 2015, 10:29 am ]
Post subject:  Re: Mercury 400R
DoktorC wrote:
OneCycle wrote:
Doc, do you think this will drive yamaha to supercharge the sho?


Nope...they don't seem to want to to go that route...even though they have a sweet 1.8L S/C'd motor in the PWC. It's a tricky balance..the SHO makes 300hp and is MUCH lighter so for our boats if you wanted to go 4 stroke...that's the way. The Verado's are a nightmare in general but on a bigger boat that can take the weight...400hp is a no brainer. I was hoping for a new 200 without a supercharger....I don't see it...fucking merc.

If I were a guy like superbender I'd have an MPI/rotrex supercharger under the hood faster than you could say verada...the PWC has a water/air intercooler...so there's some off the shelf parts that would add 25% (way more if you built it for boost) to the SHO pretty quickly. Simon can mod that ecu....and with S/C'd boost it's pretty much a constant boost curve which makes the fuel curve less insane to pin down.



a supercharger like a rotrex on the sho would be unreal. prob easy 400 hp plus and would only add maybe 50 Lbs at most... so sho at 505 so 555 lets say with the supercharger.... fuck that would be sick.

i guess when it come to consumer demand on a kit like that for the sho it probably not worth it to manufacture a kit for resale however your right all the parts are out there it just takes some one to piece it together... i'd like to see that come out of the rad shop please.
Author:  BoomerMuskoka [ February 13th, 2015, 11:23 am ]
Post subject:  Re: Mercury 400R
OneCycle wrote:
DoktorC wrote:
OneCycle wrote:
Doc, do you think this will drive yamaha to supercharge the sho?


Nope...they don't seem to want to to go that route...even though they have a sweet 1.8L S/C'd motor in the PWC. It's a tricky balance..the SHO makes 300hp and is MUCH lighter so for our boats if you wanted to go 4 stroke...that's the way. The Verado's are a nightmare in general but on a bigger boat that can take the weight...400hp is a no brainer. I was hoping for a new 200 without a supercharger....I don't see it...fucking merc.

If I were a guy like superbender I'd have an MPI/rotrex supercharger under the hood faster than you could say verada...the PWC has a water/air intercooler...so there's some off the shelf parts that would add 25% (way more if you built it for boost) to the SHO pretty quickly. Simon can mod that ecu....and with S/C'd boost it's pretty much a constant boost curve which makes the fuel curve less insane to pin down.



a supercharger like a rotrex on the sho would be unreal. prob easy 400 hp plus and would only add maybe 50 Lbs at most... so sho at 505 so 555 lets say with the supercharger.... fuck that would be sick.

i guess when it come to consumer demand on a kit like that for the sho it probably not worth it to manufacture a kit for resale however your right all the parts are out there it just takes some one to piece it together... i'd like to see that come out of the rad shop please.


knock some more weight off the mid james.. ;)
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