.....

obviously you missed the point of what I was saying and that I have been fortunate enough to own all three and they all have their place. The Centrifigals need some tuning and someone who knows how to tune EFI and the Vortech's I had are still running today several years later and the new owner built a new long block under them and made well over 1000HP. They are good pieces if you have someone who can tune 'em. I have also had a set of 900SC's and found out how much everyone liked them when I sold my turn key 120MPH 42 fountain and took a bath because carbs and roots blowers are hard to sell these days. Not that they aren't bad a$$ and nothing compares to blower surge but they are older technology and not as marketable as EFI superchargers. I have also had a set of Lysholms... two sets actually and since they are out of business I made the choice to buy a set of Whipples to replace. I see people all the time, (me included more than once!) take a boat and sink a ton of money in it to go faster when at the end of the day I could've bought a nicer, faster boat. You will never get the money back you put in performance upgrades.

and yes with the Turbo technology most of us have "obsolete" technology in our boats because we don't want to shell out the coin to have an 1100 or 1350. Now anyone who knows me would never think I would hate on anything. I don't care if you have a small block or a 1650 we are all boaters and anyone who thinks different is just wrong so let me lean up and hand you back you jar of mustard!

I have a 99 OL 502 w/whipple side mount, still has the piggy back computer and secondary fuel pump. Everything is stock other than 8:1 pistons and MLS head gaskets. I blew a head gasket last summer, pulled engine and rebuilt her this winter. As of now the injectors aren't pulsing, wont start. Engine check light is on, whipple check light is showing code 15 (I think). I have went over grounds and all connections, everything is good to go. I am thinking of buying a Mercrusier scanner or PC software to read/delete the codes, and run an injector test. I need the tool anyways.

Will the scanner allow me to read/delete the code on the piggy back computer?
Is this the next step, or am I just missing a simple ground or a bad connection?

Or should I ditch the piggyback computer and 2 injectors pre-SC, and get my MEFI 3 re-tuned and go with bigger injectors?

Any help would be appreciated and if anyone has a pdf of the instruction booklet, that would be awesome! I bought the boat 5yrs ago, 1 owner w/160hrs on it, SC was installed @25hrs. It now has 250hrs on it, I replaced the SC 2 summers ago. The boat always ran great, GPS 74mph. I know my way around an engine, but this is the first SC and MPI I have ever rebuilt. I'm not trying to push things to the limit, just want what I had, 74 is good for me.


Thanks,

Nothing against the prochargers , I still have a m1 with the small intercooler as well as a few 2.3 intercooled whipples .but if your thinking the screw type blowers are old school snooze , take a quick spin in a late model Benz e55

Here is some encouragement. It's 510ci with the stock 502 intake and plenum and made 798hp@ 5400rpm. It has about 250hrs on this setup without one problem. The key is having the right person setup and tune the engine.
http://i296.photobucket.com/albums/m...ps55598150.jpg