Can the merc 250 v8 be remapped to a 300?
#21
Registered
The PRO XS all rev to 6,200, the 250 Pro XS is the same as the 250R power wise (270 ish HP). The 300R has different cams, intake, ecu; makes significantly more than 300 HP. The regular four strokes have different exhaust and tuning. They may have different intakes but I don't know for sure.
The HP difference between a 250 ProXS and 300 ProXS is small, not worth messing with.
The HP difference between a 250 ProXS and 300 ProXS is small, not worth messing with.
I suspect the I6 may be on the way out and they go up to 350hp NA.
#22
Gold Member
Gold Member
Only guesswork, I’m not a mechanic. 🙂
RR