383 scorpions
 

stainless marine because i have diverter system, wanted to keep it quiet once and while. cmi would not work with corsa. have not run the boat yet. blood marine in lanoka harbor did the install. i will post pictures next weekm had somme powder coating done. hydro steering is next winters project. i hope the props work well

Looking forward to the pictures and seeing you out there this year.Do you ever go to AC on the weekends?

Expensive Date, got a few questions. Are you still using the Corsa muffler tips? How is the sound level at idle and on plane with the exhaust only running through the transom? Did you notice any effect on time to plane? Any top speed improvement?
Thanks,:drink:
Dave

As for the Corsa mufflers Mine has what looks like pinwheels in the tips.There are two of them I know that because when the boat was new both inside ones on the starboard motor came loose.I sent them to Corsa and they said they were not welded right.They did offered to replace them but I never did.
It is louder not a lot but noticable the engine starboard is a little louder than the port.Might take them out have not decided yet.
As for performance I had it out last weekend and was getting an engine alarm on the port motor so it did not get run hard.I should have it back this week.It should plane quicker as its probably 300 lbs lighter in the rear maybe more will let you know.If you do it CP performance makes really nice blockoffs for the prop exhaust.Will post some pictures when I get it back.

Thanks for the info. Sorry to hear about the alarm. Hopefully nothing serious. Looking forward to the results and pics.

They ran it with the computer on it today did it but is not throwing a code.I know its something stupid or maybe a coil.Hopefully its fixed tomorrow.

I just had an alarm on mine Friday. I have the SC5000 SmartCraft and it tells you the problem real time, but I don't know if it stores the code in the computer. It was the IAC (Idle Air Control) valve on my starboard engine (6.2 MPI). Exact same problem as I had last year on my port engine. These are the only two alarms I have had since owning the boat new and have 190 hours on the engines.

The IAC valve is a little stepper motor control valve mounted on top of the intake with two socket head cap screws right behind the throttle body. When you pull the throttles to idle the throttle body is completely closed and this valve controls the air going into the engine. If you notice the boat runs fine except at idle, this could be it. MerCruiser must have got a bad batch of IAC valves (I believe they are actually a Ford product...)

Got lucky and a MerCruiser dealer close to where I keep my boat had one in stock. $110 and 3 minutes of work later, she is running perfect again. :)

Good luck with yours!!

I ended up taking one of the baffles out so each tip has one.It sounds great but still legal maybe for some lakes its not but they really don't bother us for that here.
Time to plane is wayyyyyy better its has so much more power below 4gs and being 400 lbs lighter it comes right up out of the water.
Top speed is about the same but I had my props done last year by a local guy and the came back a little smaller so I think I am going to get new props and see what happens

What props are you planning to buy ?

What max. RPM are you aiming for ?

Boat ran 71-72 at 5150 when new when I got my props cleaned up by local guy(mistake) dropped to 67-68 but it did plane better so it was trade off.
Got new 28s coming from BBlades with the lighter weight so still plane better and put me back up to low 70s