V6-200 vs V6-225

[imstriker]

Happy new year all! I recently picked up a new boat with the V6-200 in it. It was a dealer left-over so I got a decent deal. I would have preferred the 225 but didn't go that route. Looking at the two engines, they look identical other than a higher max RPM on the 225. Looking ahead a few years when this boat is out of warranty, does anyone know of a tuner that unlocks the difference. Googling it, I only come up with the Magnum Tuning option. Is that a good solution or is there something else out there? Thanks!

 

[Bondo]

Ayuh,..... The horsepower differences in the 4.3l V6 is the induction used,.....

I'm guessin' yer's is a 2bbl. carb,.....
Next step up is a 4bbl. carb,....
'n Efi, or Mpi ups the horsepower abit more,....

 

[jimmbo]

First of all, we would need a little more info about the engine? Is it carbed or is it injected? Engines of significantly different horsepower can 'look' identical but, actually share very few parts

 

[imstriker]

Sorry for lack of detail. Current (2016) mpi engines. I have the V6-200-A. It seems to share parts diagrams with the V6-225-A that revs 200rpm higher.

 

[jimmbo]

Sorry for lack of detail. Current (2016) mpi engines. I have the V6-200-A. It seems to share parts diagrams with the V6-225-A that revs 200rpm higher.

Does it share all the same identical part numbers, including the ECM?

 

[imstriker]

The only changes I can find are the ECU and the HP decal on the top. That's why I am assuming it is just software based. So good news is that I think I can swap those modules but new is over $1000. Maybe a used one will turn up. Just didn't know if anyone knew of any tuners that really just unlocked that extra RPM and horsepower.

 

[Scott06]

https://www.obd2allinone.com/mefituning.asp They do what you are looking for, mother got know the difference in mapping between the two. Never used them just came up in a google search