2500 scr Lack of top end power???
Boat Top End is 4500 RPM. 2002- 5.0 MPI.
At 4200 RPM theres lots of throttle left, so when I open it up all the way, it does not translate into a lot more RPM (4500 RPM), but I do get more speed???.
But boat never gets above 4500 RPM at 41 MPH.
Dont care about top speed, but would like to see a bit more RPM to clean it out a bit.
New Prop, new plugs, wires, New manifolds and risers, thermostate etc.
Id there a govenor or something, or is my prop just maxed out???.
The only thing I know is Starboard manifold gets quite hot, could it be pulling timing???
Boat runs between 175-180 degrees, never goes above.
Wish I knew where to start.
Appreciate any input.
Thanks Grant
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