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Old 03-15-2010, 10:08 AM
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Default Mercury EFI vs OPTI

Alright, ready to repower.

I am considering either Mercury Optimax or EFI's. 1999-2004 Vintage, used with about 300 hours or so.

Which is the better route? Boat previously has 200 Mariners and hit 60, way faster than I need.

Please let me know your thoughts, but back it up. THANKS EVERYONE
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Old 03-15-2010, 10:15 AM
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Originally Posted by eckerta82 View Post
Alright, ready to repower.

I am considering either Mercury Optimax or EFI's. 1999-2004 Vintage, used with about 300 hours or so.

Which is the better route? Boat previously has 200 Mariners and hit 60, way faster than I need.

Please let me know your thoughts, but back it up. THANKS EVERYONE
Depends on what you want. EFI has none of the advantages of DFI in the OPtimax. Think of EFI as a carb motor that cranks easily, they don't get any better economy or power than a tuned up carb motor.
DFI gives you the fuel efficiency and very low oil usage at the expense of high priced repairs and parts.
I loved my Optis.
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Old 03-15-2010, 11:15 AM
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post HP and specific years. The early opti's had some problems and need updated injector and fuel rails. The EFI are really reliable but don;t have the fuel economy the optis do. my choice would be an 03-04 optimax
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Old 03-15-2010, 12:36 PM
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post HP and specific years. The early opti's had some problems and need updated injector and fuel rails. The EFI are really reliable but don;t have the fuel economy the optis do. my choice would be an 03-04 optimax
X2. Newer Opti's or any age EFI's..... the EFI motors run great and have a great history but are definitely thirsty. Newer OPTI's are much more efficient.
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Old 03-15-2010, 12:53 PM
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I am looking at 2000 150 EFI pair, 0/400 hours

98 200 EFI pair, 100/100 hours

99/02 200 Opti pair, 200/600 hours

96 200 Black Max Pair with 02 Powerheads, 300/300 hours

99/01 150 Opti pair 400/200 hours

01 200 Opti pair 400 hours w/ upgrades. Good price but 30" legs, I need 25"

Naturally the Opti sets are more expensive. Although once they get over 400 hours I dont know it if justitifed. I would like to hear your thoughts, but please back it up!
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Old 03-15-2010, 02:44 PM
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Repowered from a pair of 2001 EFI 225's to 2007 225 Opti's on same boat. Fuel mileage went from 1mpg to 1.8mpg. Speed about the same and burn less oil (way less). Less noise and way less smoke.

Hal
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Old 03-16-2010, 09:33 AM
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Also, i will be using these in the Chesapeake bay. Don't know if that helps but certainly not running 40 miles offshore or anything. Please keep the advice coming.

Right now it looks like 98-02 EFIs would save me about 1.5-2k. Other options are 01-04 Optis
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Old 03-16-2010, 10:29 AM
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FOr $1.5-2k you would be getting 3-5yr newer motors. You may never make your money back on gas an oil but one of those EFIs is over 12yrs old.
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Old 03-16-2010, 11:40 AM
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The 04 Opti's would be your best best by far. The running quality and lower fuel consumption are well worth the extra couple of thousand. You will regret any other choice, and love the Opti's.
I have a pair of 03's and they are the best. Only have 500 hrs so far, but they give great service. If you happen across a pair of engines with drive by wire DTS (digital throttle and shif), grab them. I have DTS on mine, and it's as much fun as you can have in a boat with your clothes on. You will never go back to old cables again.
Any regular EFI is good, but the difference in fuel consumption with an Opti is pretty great.
Take your time and look around. Good market for you.
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Old 03-16-2010, 12:00 PM
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Repowered from a pair of 2001 EFI 225's to 2007 225 Opti's on same boat. Fuel mileage went from 1mpg to 1.8mpg. Speed about the same and burn less oil (way less). Less noise and way less smoke.

Hal
Wow. That's quite an improvement. How's the hole-shot? Does the seat-of-pants meter feel a difference?
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Old 03-16-2010, 01:21 PM
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Quote:
Originally Posted by eckerta82 View Post
Alright, ready to repower.

I am considering either Mercury Optimax or EFI's. 1999-2004 Vintage, used with about 300 hours or so.

Which is the better route? Boat previously has 200 Mariners and hit 60, way faster than I need.

Please let me know your thoughts, but back it up. THANKS EVERYONE
If money doesn't matter go opti, just stay away from the early years.

I repowered with 2005 EFI's, price was awesome. The opti's will burn less fuel but for the price difference, could be a real long time before you see any savings. The opti's can also offer more potential problems. The 200 blocks are the best motor and most reliable they ever built and I looked at every motor out there. In my case, for the dollars it didn't pay to go opti.

Don't believe the BS about efi burning fuel like a carb. I burn 18 gph with twins moderately loaded in a boat that is over 30 feet long with a 10 foot beam and 21 gph fully loaded and topped off tanks and sipping oil. My old carb'd motors were a totally different animal.

You can't go wrong with either motor though. Parts are also easy for Merc's online with full diagrams and part numbers and ordering right on the spot if you do your own maintenance.
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Old 03-16-2010, 01:45 PM
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I had a 200 EFI previously and now have a 225 Opti. The Opti is around 35% more fuel efficient and uses much less oil. It's also noticably quieter. The opti oil is more expensive but it doesn't use much. It's a more complex engine with more stuff to break but the fuel savings and increased range made repowering a no brainer. I wouldn't consider an EFI in 2010. You should be able to find 04 or 05 Optis for a decent price.
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Old 03-16-2010, 04:33 PM
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Thanks for the feedback on the EFI's. I agree on the OPTI's I would gladly buy them ,but unfortunately alot of private sellers think there is gold in a used OPTI or something.

The EFI's are looking good thus far.
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Old 03-16-2010, 04:34 PM
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Also note that in the Chesapeake range is not an issue.
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Old 03-16-2010, 06:54 PM
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2003 or newer Opti but, I have spent more money on compressors and air injectors than I have saved in fuel/oil over 450 hours. At this point, an EFI would have cost me less money.
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Old 03-16-2010, 09:08 PM
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That's awesome. You have EFIs that burn the same at cruise as Optimaxes.. Hang on to those bad boys.
http://www.mercurymarine.com/look_de...ptimax200250=7
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Old 03-17-2010, 05:11 AM
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Mr Demeanor, that's along the lines i am thinking. Granted fuel is not cheap, but the cost is spread out and it doesn't cause any additional downtime. I know OPTI parts are not cheap. I hate to burn extra fuel but...

Plus, like I said I am not running offshore and probably wont be running more than 20-30 miles a weekend average. And I have no problem backing the speed down to save fuel, as I like to do so anyway from a wear and tear standpoint
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