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Old 21 September 2004, 08:16   #1
Country: Netherlands
Town: Hoorn
Boat name: skip
Make: revenger 25
Length: 7m +
Engine: mercury 250 pro xs
Join Date: Oct 2001
Posts: 129

Does someone know if it is possible to chiptune a optimax 225?
(changing the software etc. to get more hp)
They do it with cars so why not with outboards?

niels is offline   Reply With Quote
Old 21 September 2004, 08:59   #2
Country: Ireland
Town: Carigaline/Baltimore
Boat name: XS-600
Make: XS-Ribs
Length: 6m +
Engine: Merc Optimax 150 XL
Join Date: Feb 2004
Posts: 682
It has been discussed here with the before with the 150 Optimax (2.5l V6)

Can a 150 Optimax be upgraded to 200?
super chippin mariner engine
chipping Outboards

I would imagine for it to be possible to upgrade the 225 you would have to get the ECU from another similarly built engine ie: (3.0l V6)

Maybe an ECU from a Mercury Promax or a 250XS. You will also have to change the exhaust as well as these engines have racing exhausts, not to mind a host of other racing parts to produce the extra power.

Overall it is a very costly procedure and will void your warranty. A new more powerful engine would work out cheaper.

Verado Promax
Steve G
If In Doubt, Go Flat Out!!
swginn is offline   Reply With Quote

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