557 H.P Supercharged Small Block Chevt
 

Well by now all you guys have heard about the 557 H.P. supercharged small block chevy in an outboard .. Wonder how long it will take someone to put an outdrive like Ilmor, Volvo, or Konrad on the back end of that engine and give Merc a run for their money ?????? And not cost $204,000.00 an engine or some other out of this world price!!!!!!! Sounds like a great weight to horsepower ratio !!
Hows that for a large crap ball that just got rolled ..


Jim:drink:

You can get a lot more horsepower from Merc for a lot less than 204k

The $204,000.00 was just a figure I threw out because thats the cost of the new (1350 ) . I was just trying to put a little levity in the post !


Jim

Couple of questions and observations.

Who would bother with a blower on a small block to make just 550 ponies.

(Mine makes 500&500 with about 10K of parts.)

Then why would you cobble a beautiful new indy together with an outboard setup when you could just install it like it should be installed?

Curious where you are going with all this- it is interesting in a "Rube Goldberg" kind of way.

Uncle Dave

The outboard thing looks cool, but the more you go over the 1hp per cubic inch base line the more work the motor will need and wont last as long. A small block will never have the grunt a big block will, they work fine in smaller lighter boats but I wouldn't look for them in big boats. Around here getting high oct. fuel is harder and harder, and a supercharged small block will more than likely need 91 or higher for that much hp or it will have a knock sensor and pull the hp down when on less oct. fuel. I would rather have a 600-700 cube big block thats N/A set up to run on 89 oct. fuel making 700ish HP with a 300-500 hour life span.

A pair of these on a 28 or a 32 skater would be nice though :)

Pricing out a 500-550 small block after the miami show. Have to get a feel for where the market is at. Anyone price one out or have a feel for what they would pay?

Not sure if stroker is the way to go and probably shy away from LS for now but who knows. Carb and efi options for sure as well as all quality parts.

I had one priced out a few years back.
475/475, and was very reasonably $ from a 383.

Bill Mithcell, Hardcore Racing, has alot of combinations to choose from for the street (marinazation is up to you). A good starting place if you do want an old style Chevy small block, or if you decide to go the LS route he can help you there too.

http://www.theengineshop.com/products/engines

Marinized ready to roll exhaust and everything new from scratch 20-25K.

Be careful using an engine built for cars, cars dont have water reversion problems or issues with high idling.

A high idle in a boat with an outdrive = broken drive gears and blown clutches.

In a car you can run as much lift and duration as youd like to make X number appear on a dyno.

I have a a really nice 406 and if I had to do it all over again Id have just gone with an FI big block and been done with it.


Uncle Dave

I'm sorry but don't you have a car motor in your boat? :lolhit: I am sure these guy's have considered your aforementioned concerns.

Isn't that the LSA motor from the Caddy CTS-V that they are using?

YEP !!!!!!


Jim

I have a pair of small blocks JC Performance just built for me. I was able to keep the fuel injection w aluminum heads should be on Zuls dyno this week. hoping for close to 500 hp

Yes, but its set up for a boat with careful cam & head & compression selection.

Ive watched a lot of guys try to slip in crate engines designed for cars and have trouble.

Notice bill mitchell who makes great products voids the warranty for marine use.....

Uncle Dave

It's an OUTBOARD that looks just like a Mercury 300hp.
It's a V8 Supercharged built by Seven Marine

Here is a Facebook Link to Hering working with them on Props

http://www.facebook.com/pages/Hering...s/146415149606


It is state of the art Outboard not some standard small block chevy....

If I knew how to copy and paste pictures on this site I would post a few but apparently I am too tired to figure it out. The Insert Image only offers "whats you pictrues URL". I thought there was a paper clip at one time?

Anyway, Here is the companies web site.

http://seven-marine.com/

I guess they are unveiling it at the Miami boat show.

This is different from what Ive seen before mocked up by a lone "dude"

Pretty cool, but whats it weigh?


UD

I was told the are just over 1,100 lbs

yeesh- pretty sure thats about what my Ilmor & XR combo weighs.

This is no doubt a cool dealio...and not at all what I thought the poster was talking about (homebrew)

Its really nice to recover the room in the boat an I/O takes up - but thats a lot of weight and pressure on the transom, plus I have to wonder how that gearcase will last.

Uncle Dave

THIS is the last attempt at this I saw.

A far cry from the offering I see now.

UD

Did anybody find out any more info on this thing, whats the story?

557hp, 1000+lbs, $70k retail each. No thanks

Here is a link to their facebook page. It appears that they havn't tested them yet.

http://www.facebook.com/profile.php?...#!/sevenmarine

Talked to engineer at show from seven marine, they said no sea trial yet, plan was to run it after the show. He said no price has been set yet, around 70k is what they expect. I am a mechanical engineer and super interested in the power transmission to the lower unit and either he didn't know or was reluctant to talk about it much.

I was told today that OEM pricing was under $40k