Thanks . Did you change the cam and tune or just do the exhaust?

Look great, where did you get the coolant reservoir cover and air filter ?

Hello
The cover was made by myself.Was very easy! Alloyplate,drill big hole in it and make the plate outside and from contour fitting the reservoir! Then podercoat like other stuff from motor!
aitfilter was one from VORTECH,but i think they dont make it any longer.I have not sold with the engine and can sell,but need 250 dollar for it!

I have ask dustin whipple sometimes when have fitting cam for this setup,but get no feedback from him about cam swap.
i think its not real importend,as ist is a powerfull reliable package so!
Michael

Good Morning all, first let me say this thread has been useful to me I know this is my first post but I was curious about some information I need.My boat not an offshore racer type but a big bowrider 2011 270SLX it has the 8.2 with cats and DTS, this boat is new to me only has 11.5 hours on it has had the service bulletin fix completed SB 2011-003. Took it out for first time the other day and had an 02 sensor issue , I'm hoping its just crappy fuel and it needs to be run, however, I'm thinking some long-term longevity with this engine and I was curious what items are needed to remove the cats I see its talked about within the thread is it as simple as
1. Remove the six cats
2. Reprogram the PCM
3. Change the throttle body adapter plate

Or remove the cats and install thisMax Volt Catalyst Eliminator Computer



Again not worried about any tickets as no one "marine patrol" has ever wanted to inspect my engine for any reason I thought about running it as is for summer then tearing into it over winter. Thanks in advance for any input

I just wanted to add something to this thread. There was talk earlier in the thread about the engine having basically the same bottom end as the 525, etc. That is absolutely not true. It is completely different. It uses a forged crank but it has extremely small counterweights. The rods are powdered metal with cracked caps. The pistons are Diamonds that are VERY small and light. The entire rotating assembly is very light weight. We just did a pair and had trouble balancing the cranks. The owner wanted to change the rods and pistons as the engine had failed catastrophically. We used the same rods and pistons that we put in the 525's and it would have required (7) 1" slugs of Mallory (heavy metal) to balance the crank. It ended up being cheaper to replace the crank than try to balance the original crank. We have increased the compression, changed the cam to a 525 cam, and replaced the exhaust while eliminating the 6 cats, along with a tune from Dustin. It should be just shy of 550 hp. I'll post some pics tomorrow.
Eddie

The stock OEM format is not that reliable from the get go -- Especially 2010 thru 2014. Cooling issues, the cats and owner self inflict many issues with these EC 8.2 engines. The owners of these engines need more education about proper maintenance and on time maintenance plus imo operation for longevity. One example --- do NOT run these engines out of gas - it blows a hole right thru the cat substrake. Also merc recs the change the of the pcv valve once per year or 100 hours which ever comes first for another small example that owners miss.. Just a jist of info. Also dealer Merc G3 scan is strongly recommended for diagnostics on these engines

the first 3 years was a very poor design with the emission control set up. 3 vertical cats in each exhaust total of 6 --- per engine was a nightmare and expense waiting to happen. And the vertical install of the cats --- wonder whom thought that one out ? one always trys to NOT go against to fight gravity cause in the long run --- it will lose. (The multiple vertical installed cats)

How do the internals compare with the 496, in terms of strength of the rotating assembly?

How do the internals of the 8.2L compare with the 496, in terms of strength of the rotating assembly?

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Totally different parts then the 496 but about the same quality, or lack of. As far as I'm concerned, it's a bunch of cheap crap.

Wow this has been a very informative thread. Questions about the engines still in circulation. Has there been recalls to fix the issues so that they will last? Currently looking at 2010-2013 Formula 370's most of which are equipped with the 8.2's. Sounds like they may be more problematic than originally thought?