????
My motors are carbed and I've never even had a hiccup. 120hrs and going strong. I can't say that for the EFI boats I've towed in.


Darrell.

I did it, never happier. Not to mention 300 extra hp.

Carbed these days is a little more for the low dollar shade tree mechanic type who wants to make excellent hp. To make excellent hp with EFI you need to be the puzzy rich guy that wants his boat to run the same as his PT cruiser. The lack of tech ability and knowledge with the PT cruiser crowd is annoying. But they compensate for that with $$ which is really funny when us low dollar shade tree guys are rompin past them

BT

In my opinion you will spend more time working on an EFI setup than a carbed setup.

carbed these days are for the shade tree guys that aren't smart enough to run a lap top and a programable efi set up.

there is no carb on the planet that will make the precise fuel curve that an efi system will throughout the range that the motor makes power in.

none

zero.

carb guys like to say " well at least when it stops out on the water, i can still fix it"

thats from years and years of practice. efi guys like to turn the key... have it start without pouring raw fuel into the oil... and if they want to hot rod the motor, they simply do what everyone else does that does it intelligently...

go to the dyno, put in the right fuel curve, and go home.

the motor then makes the max power it can make from the mechanicals and gets superior fuel milage as well.

there are 8 to 10 of these boats here. all the carbed ones seldom run well if at all.... and all those guys have two or three spares. all the injected boats run all the time. perfectly.

they are , without exception, faster, than the carbed boats ... even those that they shouldn't be on paper but are because the carbed boats are either blowing black smoke or fouling plugs or some such thing...

when the injected boats have a prroblem, the guy comes out with the scanner. prob is identified in minutes, ( no guesswork) sometimes its a connection... sometimes its a part... fix it and away they go....

couldn't be more straight forward.

as for making power ... my position ( and long experience in engine building/dyno work is:

no motor i have ever seen on a dyno with a carb, that was then converted to efi , EVER made more power than the efi set up did. not once. if the intake flowed the same then just the ability to make the fuel curve perfect EVERYWHERE always paid big dividends.

stick with carbs if thats all you can understand... but efi is better in every single aspect of engine function. by a lot

It really depends on if you prefer analog or digital control of your fuel system. I find analog superior albiet somewhat more restrictive that digital. I don't really think a guys preference for carb setups is an indicator of them not being smart enough for efi setup. I in fact have been trained in and can write code in fortran, basic, rslogics, and CTC. I'm sure I could handle programing a fuel curve. Yet I chose to run carb. Do you drive a PT cruiser stevesxm?

BT

Isn't that kind of obvious...........


Perfectly all the time.......You BS like a politician............



Except repairs..............


EFI greatest benefit to the everyday boater is the easy starting and I'm not that lazy.

EFI greatest benefit to the everyday boater is the easy starting and I'm not that lazy.[/QUOTE]



Hence the PT cruiser jab. I think you and I are on the same page Pismo

Putting all the EFI/Carb BS asside. The 502 Mag efi system makes tons of low end torque, but doesn't flow well enough to support a lot of HP at higher RPM. So, you really have to look at the application. For a mild engine built to turn around 5000-5200 RPM max at 500+/- HP the Merc EFI will perform better. Beyond that the carb will surpass it. You will notice a significant loss of torque below about 3800 RPM when switching to a carb.

Bob