Outboard Horsepower (need a Bombardier Mech)

[Wade Joseph]

My 2000 Ram Ficht 75 hp looks EXACTLY the same as the 90hp model (cowling on or off) and pretty dam close to the 115hp models. Whats the difference? If I remember correctly the 75 and 90 even have the same displacement in cubic inches bore, stroke etc...So how do I bump my 75 up to 90hp or even 115?

[Valv]

I am sure fuel delivery program on ECM is different and probably injectors. I wouldn't try to mess with it....it's all electronic, and it gets recorded on ECM, if you need any dealer assistance it will be denied.

[Whoaru99]

Yes, that stuff at least, and probably more.

Could be different intake/exhaust porting, etc.

[upnorth]

I ain't sure myself, but rumor has it the cheaper route would be to buy a new motor.