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Author Topic:   2005 Model Year; 90 HP- EFI 4-stroke
bigjohn1 posted 03-31-2004 04:43 AM ET (US)   Profile for bigjohn1   Send Email to bigjohn1  
What month will Boston Whaler change to 2005 model year for 170 MONTAUKs?

I have placed my initial order for a 2004 170 MONTAUK with the dealer but can't accept the boat till July or August. I think his order to the factory has to be in by around May. He says due to this timeline, I may hit the 2005 model year. This may be good news and maybe not.

Will Whaler will offer a 90-HP EFI (4-stroke) in 2005 model year?

I know there are plans to introduce EFI in the 90 4-stroke at some point in the future but am not sure when. If I can wait 1-3 months longer in order to get an EFI, I will gladly do it.


Big John

jimh posted 03-31-2004 05:44 AM ET (US)     Profile for jimh  Send Email to jimh     
I believe Boston Whaler changes model year designation at approximately the time frame you mention, late July or early August.

I am intrigued by your mention of a 90-HP 4-stroke engine being available in 2005. Of course, this implies a MERCURY 90-HP 4-stroke with EFI.

Is there a rumor of a Mercury 90-HP 4-stroke engine with EFI being introduced? I would like to hear more of this.

bigjohn1 posted 03-31-2004 08:41 AM ET (US)     Profile for bigjohn1  Send Email to bigjohn1     

Nothing confirmed, just second-hand rumors. If memory serves me, someone here on the forum mentioned talking with a rep at a boat show recently. Supposedly, the rep mentioned that by either 2005 or 2006, Merc was going to offer all their mid-range 4-strokes with EFI. Of course one of you guys back there in the same time zone (and access to 1-800 service) might be able to find out easier than we can on this side of the planet:-)

AQUANUT posted 03-31-2004 10:42 AM ET (US)     Profile for AQUANUT  Send Email to AQUANUT     
hey john,

getting anxious?

my 2004 mt170 had a production date of june 8th date was 7 july 2003....I beleive my boat was about a week into production change to the 2004 model of the very first run 2004's

LHG posted 03-31-2004 01:33 PM ET (US)     Profile for LHG    
I think this is more of Mercury question than a Whaler question. I don't know what's in store for the Merc-aha 75 & 90's in 2005, but my Merc/Yamaha dealer has told me that in 2006, all Mercs, including the 75/90 4-strokes, will be featuring EFI technology. I assume the Yamaha versions would be too.

A more important immediate question/solution could be when the 90 Optimax's will become available on the 170. Until the 4-strokes get EFI, I would prefer the DFI Optimax at a lighter 360#. I'll bet they are good performers in the 90 HP version.

Perry posted 03-31-2004 09:01 PM ET (US)     Profile for Perry  Send Email to Perry     
According to BW's performance data now available on their web site, the 90 OPTIMAX is slower to plane, a full second slower to 30 mph and about the same top speed as the 90 carbed 4 stroke on a Dauntless 160.

It was also quicker to plane by a second and a half than the 115 4 stroke, 115 OPTIMAX and 90 classic. It seems that this Yamaha based carbed 90 4 stroke is a good performer.

bigjohn1 posted 03-31-2004 09:17 PM ET (US)     Profile for bigjohn1  Send Email to bigjohn1     

After looking extensively into the 90 Optimax for powering my 170, I decided against it. It would have been nearly a $4,000 option!! Also a concern for me, I just felt like the extreme heat and humidity out here in my neck of the woods (Micronesia) would eventually cause some problems in all that under-the-cowel electronics and I didn't want to be off-shore and have an "issue" crop up.

Stators and switch boxes, for example, in the smaller Merc outboards take a beating out here and often have to be replaced within a 2-3 year period. Perhaps AQUANUT or some other experienced outboard mechanic can shed some more light on this. I can tell you that in the extreme tropical salt water environment, engine electronics seem to manifest more problems than back home in the USA....not sure why though.

Now for an admission, If the Optimax was somewhere in price between the 90 2-stroke and 90 4-stroke (where I thought it would be), I might well have gone for it.


AQUANUT posted 03-31-2004 10:07 PM ET (US)     Profile for AQUANUT  Send Email to AQUANUT     
isn't life grand?

1. the 115hp MERC-MAHA efi 4 stroker I have on my 2004 mt170 changes in 2005....then it will be entirely mercury....currently yamaha manufactures the power head on the 75/90/115 fourstrokes....mercury will do it all in 2005 model year.

2.hey john....last year when it was 115 degrees in the sun here...I took my temperature gun. and pointed it at the cowling on several engines I ran in our test pool.
they averaged 180-190 degrees on the surface of the engine cowl...what do ya need to cook an egg?..point is the new coils..and ecm's...etc are made to withstand excessive heat...also the opti max cowl provides for additional ait influx into engine compartment.

3. carbed engines versus efi....due to the poor fuels available at the pump...they seem to varnish in about three months....its sure seems that we are servicing carbed motors and never "rebuilding" efi aspiration.
eficiency is certainly a is performance..

p.s.I am pro mercury..even bias...mercury is owned by brunswick..who also owns...hatteras..raballo,,boston whaler,,sea put in their pocket..seems to be put into the pockets of american workers...for the most part....not the japanese...

as in honda and yahmaha....GOD BLESS AMERICA

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