I see 3.0L mercruiser power rating ranging from 120-140hp depending on the year, What makes the 20hp difference?
Is it just electronic ignition over points, camshaft differences throughout the years or a combination of both?
I currently own an 88 3.0L 130HP Merc and will soon be converting over to pertronics electronic ignition and coil.
I am doing it for reliability more over hp but if i widen up the gaps on the plugs due to the increased spark voltage will i gain anything?
Also my timing says 6deg btdc, if i run premium can i increase engine timing to say 12 and gain a bit of hp/torque like you would in a car or is that even advisable?
I like the power my boat currently has and am not looking for a bigger engine, but the above ideas are basically free and for reliability so if i can gain a little why not.
Anyone have a 3.0L hp chart over the yrs??
Is it just electronic ignition over points, camshaft differences throughout the years or a combination of both?
I currently own an 88 3.0L 130HP Merc and will soon be converting over to pertronics electronic ignition and coil.
I am doing it for reliability more over hp but if i widen up the gaps on the plugs due to the increased spark voltage will i gain anything?
Also my timing says 6deg btdc, if i run premium can i increase engine timing to say 12 and gain a bit of hp/torque like you would in a car or is that even advisable?
I like the power my boat currently has and am not looking for a bigger engine, but the above ideas are basically free and for reliability so if i can gain a little why not.
Anyone have a 3.0L hp chart over the yrs??