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I boat at 7000 feet, 190 Sea Ray Sundeck with a 2001 Optimax 150. Motor runs well but is a little anemic.
On my motorcycles I open up the air box at altitude, and the ECU adjusts quite well. Results is slightly better power. Can I do this to my Merc?
I have a 1999 190 Sea Ray Sundeck, repowered with a 2002 Optimax 150. WOT is 5200-5300 rpms. Range is 5250-5750.
I am running a 15X17 aluminum. It gets on plane quickly, stays on plane at low speed and will run about 42 mph.
I have a little trouble pulling up skiers quickly enough though. I...
