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-   -   Merc 496 MAGS (https://www.offshoreonly.com/forums/general-boating-discussion/302711-merc-496-mags.html)

low_psi 09-10-2013 07:19 PM

Dollar for dollar, the whipple stage II PCM flash (IMO) offers the best performance upgrade. At least it did in my boat. The Velocity hull responds very well to small HP increases..... The PCM flash, gave me a huge lift in mid-range torque and maybe 2 MPH at WOT. Some will argue the PCM flash doesn't help at all. I think upgrades will all depend on the hull. If you are going with a heavy boat, I would suggest just leaving the motors as they are and just enjoy the hundreds of trouble free operating hours the 496 has to offer.

Nate5.0 09-10-2013 07:26 PM

Ya It's an 8400 lbs dry boat with twin 496's and a top speed as is of about 68mph.

I would love to break the 70 mark but it's not a must at all and don't want to spend thousands on thousands for a very minimal gain.

Crude Intentions 09-10-2013 07:27 PM

What kind of boat Nate?

Nate5.0 09-10-2013 07:30 PM


Originally Posted by I.C.U.Lookin (Post 3992279)
What kind of boat Nate?

Sonic 358

Crude Intentions 09-10-2013 07:32 PM

Nice boats.

Nate5.0 09-10-2013 08:02 PM


Originally Posted by I.C.U.Lookin (Post 3992284)
Nice boats.

I loved it when I was looking at it crawling all over. Lots of great features, great lines, and very clean.

Crude Intentions 09-10-2013 08:05 PM

Awesome. Hope it works out for ya.

Pwraddr 09-10-2013 08:11 PM

Change the cams, ECM programming and drill the TB and make them HOs. Around 100 hp.

Nate5.0 09-10-2013 08:35 PM


Originally Posted by Pwraddr (Post 3992317)
Change the cams, ECM programming and drill the TB and make them HOs. Around 100 hp.


They say "496 MAG HO" on them. Not sure if that's different.


http://i43.tinypic.com/10441v7.jpg

Pwraddr 09-10-2013 09:01 PM


Originally Posted by Nate5.0 (Post 3992352)
They say "496 MAG HO" on them. Not sure if that's different.


http://i43.tinypic.com/10441v7.jpg

Sorry, thought they were mags, NOT HOs.

Seems crazy the boat is that slow. I have a PQ with same power and will run 80. Weighs a bot more too.


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