BobL - As most of the performance intakes for the 6.2s appear to be aluminum it would seem that fresh-water cooling would be a good idea. If one were to use a complete closed system would aluminum intake, and maybe even heads, and exhaust manifolds be an option even in a salt water environment? It seems like these aluminum parts would more than offset the additional weight of the heat exchanger. Just curious if you have had experience in this arena?

I think the major cause of fuel system problems on a marine engine is moisture. It causes corrosion all through the fuel system that ultimately clogs up the injectors. Whatever you can do to minimize that will help save the injectors. Lots of theories out there on how to do that. I like to totally drain the fuel system then run a highly concentrated cocktail of gas, stabilizer and oil to store it. I've been thinking about using avgas to make up the cocktail.

I use injectorRX out of Houston, but there are many out there that can do it. It generally runs around $18-20 per injector. I don't remember ever sending an injector in that did not have some amount of restriction before cleaning.

Hey Wes, Hows it going Bob ,,,, Wes, what kind of performance are you wanting ? Bob tuned and dyno my engines this past summer, made 400hp@5600- 430tq@4200 ,,,,, I don't regret anything so far EXCEPT COMPLETELY DRAINING OLD FUEL, there was about 30gal of 91oct in the tank when i finished the engines. On first time out i top tank off "70gal more" less than 3hrs run time, most of which were idle, starts knocking ,,, found piston trying to stick, lots of questions, many conversations, zero in on detonation from poor fuel,,, lucky i heard the knock while flushing engine on driveway,,,,, pulled it, fixed it, happy with results,,, any questions, be glad to answer ,,, BTW i plan to see Bob again, Happy but not Satisfied, still digging for speed ,,,,,,, Can't help it

So I grab a bottle of Techron Concentrate plus I have sitting on my shelf right now and look at it. It says "Petroleum Distillate, Stoddard solvent and proprietary additive". Not much help there. I go to techron.com and look under science and it says "Techron's formulation is special because it contains polyetheramines" I am assuming that is the PEA? TLA's can be so confusing!

Either way, Techron was a neat site with their info commercials. I have two bottles I was going to run through my 496 burb, except I never did as I really need 4 bottles for the gas tank! The 20 oz bottle is $7 del on Amazon Prime. I think I got the two 12 oz at Autozone when they had a 2 for 1 sale promo, other wise it was $8 for a 12 oz bottle.

Now that I posted in this thread and asked a question about the PEA, the thread can be closed. Seems once I post, a thread goes dead. Gives a guy a complex!

Brian

hey mike try this one..i was on my pc and was checking my emails,i clicked on a email i got and i hear a customer walk into my shop..i go to greet her and when i gt back to my pc theirs a woman spread eagle on the screne taking bubba,,try explaining that one to a customer!!! she was hot too!

Sounds like a scene from a Cinemax movie......... At that point ya gotta roll with it.... Never know what will happen.