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03 May 2010, 21:26
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#1
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Member
Country: UK - England
Town: Weymouth
Boat name: Amelia
Make: Atlantic 21,3x SR5.4
Length: 7m +
Engine: 2x75,2x40,90hp
Join Date: May 2010
Posts: 115
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115hp optimax new ECU for sale
Hi,
I have a brand new Mercury/Mariner 115hp Optimax ECU (PCM)
Here is a brand new still packaged ECU for a Mariner/Mercury 115hp Optimax engine
Known as a PCM Propulsion Control Module.
Part No.89790625T
They are expensive so contact for price. 
If you are Interested let me know or pm me
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03 May 2010, 21:47
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#2
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Member
Country: UK - Wales
Town: West Wales
Make: Vipermax 5.8, SR4.7
Length: 5m +
Engine: 150 Opti, F50EFi
Join Date: Sep 2005
Posts: 6,299
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Are these directly interchangeable with the ECU of a 75 Opti?
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03 May 2010, 21:50
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#3
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Member
Country: UK - England
Town: Weymouth
Boat name: Amelia
Make: Atlantic 21,3x SR5.4
Length: 7m +
Engine: 2x75,2x40,90hp
Join Date: May 2010
Posts: 115
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I could look into it for you, as I know it is the same block. I bought it to try and fix an unknown problem with my engine, I ended up breaking the engine for parts. And keeping the ECU which works out better to sell seperate.
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03 May 2010, 21:53
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#4
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Member
Country: UK - Wales
Town: West Wales
Make: Vipermax 5.8, SR4.7
Length: 5m +
Engine: 150 Opti, F50EFi
Join Date: Sep 2005
Posts: 6,299
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I wondered whether there were any other differences between the 75 & 115 Optis.
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03 May 2010, 21:56
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#5
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Member
Country: UK - England
Town: Weymouth
Boat name: Amelia
Make: Atlantic 21,3x SR5.4
Length: 7m +
Engine: 2x75,2x40,90hp
Join Date: May 2010
Posts: 115
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Not as far as I know, I know the 75 mariner is the best power ratio to hp as it has been massivly down rated. It is the same block as the 115hp. I am not sure if it is purely the ECU that is different. If it is wow what a big difference for a small price
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03 May 2010, 22:23
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#6
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Member
Country: UK - Channel Islands
Town: jersey
Boat name: Martini II
Make: Arctic 28/FC470
Length: 8m +
Engine: twin 225Opti/50hp 2t
MMSI: 235067688
Join Date: Jun 2005
Posts: 3,030
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I'm sure I've read somewhere you can simply swap ECU's to change hp on an opti if they're of the same block. Hence why they're so expensive, to discourage people from not buying the bigger motor.
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03 May 2010, 22:26
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#7
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Member
Country: UK - England
Town: Warwickshire
Boat name: True Blue
Make: Humber ocean pro 6.3
Length: 6m +
Engine: Mercury 150 opti
Join Date: Oct 2005
Posts: 456
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The 75 and 90 opti are a pcm change (I think) but there are differences with the 115, the throttle body is different and may be other parts but never checked it out. the block and most parts are the same.
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04 May 2010, 10:08
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#8
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Member
Country: UK - England
Town: Hamble
Length: 9m +
Join Date: Dec 2002
Posts: 2,317
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it's used on these.....
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It is better to remain silent and be thought a fool, than to speak and remove all doubt!
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05 May 2010, 07:19
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#9
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Member
Country: UK - England
Town: Weymouth
Boat name: Amelia
Make: Atlantic 21,3x SR5.4
Length: 7m +
Engine: 2x75,2x40,90hp
Join Date: May 2010
Posts: 115
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yeah that looks like the one Dirk. Let me know if you guys find out about if it is a interchangeable part. That would be very interesting  
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07 May 2010, 21:24
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#10
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Member
Country: UK - England
Town: Looe
Make: Delta
Length: 4m +
Engine: Mercury
Join Date: Apr 2004
Posts: 1,409
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The 115 Opti has different porting in the block, inlets are different as well. It will run like a bag of crap if you put that on a 75/90 Opti i tried it once at work!
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05 June 2011, 20:30
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#11
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Member
Country: USA
Length: no boat
Join Date: Jun 2011
Posts: 1
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optimax 115
do you still have the ecm for optimax 115? thanks
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07 July 2011, 07:21
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#12
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Member
Country: Australia
Town: launceston
Boat name: bob
Make: na
Length: 6m +
Engine: outboard
Join Date: Jul 2011
Posts: 2
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do you still have a 115 ecu for sale? cheers scott
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07 July 2011, 07:23
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#13
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Member
Country: Australia
Town: launceston
Boat name: bob
Make: na
Length: 6m +
Engine: outboard
Join Date: Jul 2011
Posts: 2
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115 opti
have you still got a 115 optimax ecu?cheers scott
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