Has anyone here ever played with the mercury outboard ecu's seems the earlier models run a 27c256.
I have a mate that is a marine mechanic has a few engines ecu's to experiment with.
Or does anyone know of any good sites with info relative to outboards ?
mercury outboard ecm's ecu's
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Dec_head
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Holden202T
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Re: mercury outboard ecm's ecu's
i think we are going to need more information, what brand/model is the ecm etc ?
No matter what the question is, the answer is always more horsepower! 
Just starting out? Have a read of the getting started guide
Basic tuning of a delco ECM with $12P thread
Advanced tuning of a delco ECM with $12P thread

Just starting out? Have a read of the getting started guide
Basic tuning of a delco ECM with $12P thread
Advanced tuning of a delco ECM with $12P thread
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Dec_head
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Re: mercury outboard ecm's ecu's
Several different types just in general for starters 11350 ecm's they appear to have a 27c256
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VL400
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Re: mercury outboard ecm's ecu's
Read the EPROM and post the bin?