496 improvement options- narrowing choices down
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Re: 496 improvement options- narrowing choices down
Originally Posted by Sydwayz
What year are the 496s? Depending on year/serial number, Merc has a recalibration for the ECUs.
Merc replaced mine under (extended) warranty with new CPUs (new calibration programmed) last season.
Merc replaced mine under (extended) warranty with new CPUs (new calibration programmed) last season.
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Re: 496 improvement options- narrowing choices down
I have an 01 that merc replaced the unit on this spring and a set of CMIs. I always complained about the dirty transom and between the two of them my hiny stays shiny.
Last edited by boatfreak; 11-16-2006 at 02:05 PM.
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Re: 496 improvement options- narrowing choices down
Originally Posted by boatfreak28
I have an 01 that merc replaced the unit on this spring and a set of CMIs. I always complained about the dirty transom and between the two of them my hiny stays shiny.
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Re: 496 improvement options- narrowing choices down
I didn't gain any top end but I do think I have a better midrange. I said this in another thread a few days ago that I don't think in my case that they were worth it. I don't doubt that some of these guys are seeing gains as all boats are different. I would still like to add the Raylar 525 kit to my setup and then I think I would have something. I might add that I have been watching the thread about the air intakes. I have a single in a 28 Active Thunder and I think I recall reading about a 28 A.T. that had a new 525 in it and it was not getting enough air. I haven't thrown in the towel yet on these things as I might still be able to find horsepower.
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01-27-2007 09:20 PM