The writing is on the wall here gentleman!
Read the writing!
There is no current supercharged engine that meets the new 2011 EPA and EU emission standards, PERIOD!
No manufacturer is going to be building supercharged engines that don't meet the new standards, they can't because they won't get certified. Marine Performance Supercharging has a fuel delivery characteristic that when made to work in boat performance engine high horsepower loadings cannot currently or in the near future meet the new emission standards. I think this might have been some of the reason Mercury and most automotive high performance engine builders have moved to turbocharging, don't you??
There are new offerings like Merc's new 1300 and Ilmors 725 engines that do, but that's it and believe me when I say its doubtful any major players are going to step up to the huge expense of this type of development now or in the near future.
There is always room for aftermarket upgrades in supercharging on existing boat engines for current engines but Paul Ray is correct when he says you are not going to successfully supercharge and existing marine performance engine with 10.3 to one compression with any moderate boost and have a reliable engine.
There will always be guys who want to try and succeed at grenading their nice marine performance engines and they will be on the forums crying the blues days after the event, wondering what went wrong and why didn't it work??
Want to supercharge an Ilmore V-10 engine, just tear it down, have new custom pistons and rings made, install new Inconel exhaust valves, change the camshaft, spend a minimum of $500,000 developing a new supercharger with all acessoires and engineer it to fit, modify the fuel injection system and pay for a develop complete new programming for the ECM and whola! you've got a new Ilmore/Custom supercharged marine engine with HP and torque numbers that the original engine block was not designed for!
Sounds simple and affordable does it not!?
Will someone out there please get started , I can tell there are hundreds of wealthy Ilmore engine owners chomping at the bit!
If the future of this industry is to survive and grow we really need to be spending our time talking and working on more pressing and important issues. Just my tow cents that seem to be worth a little more everyday.
Thanks for your attention.
Ray @ Raylar