Originally Posted by lavey jr (Post 4501788)

Noted.
As for this timing topic and rev limit. From my knowledge you'll be able to set all this based off of the load that's being placed on the engine. So the very moment the engine/computer detects a lower load it can pull anything you want weather it be timing and/or fuel to reduce the torque the engine is putting out and then as soon as it detects more/normal load it returns to normal. This seems similar to modern day cars when they switch back and forth to open/closed loop depending on throttle input and load in order to provide less power to improve the engines consumption/efficiency. So in a boat application if you leave the water the engine will free rev (less load) and then the computer will pull the parameters, as soon as you enter the water it will sense the load and return to normal.
Speculating on this lets say the the computer is slightly slow to put full power back, it wouldn't be substantially noticeable and possibly could even act as a helper to gradually lay back into full power rather than just nailing the equipment. In turn help decrease load spike on the equipment.
This is all speculation because I do not know much at all about the whole engine building and tuning...

Originally Posted by 14 apache (Post 4501595)

I would like to see a pair of bravo lowers mounted to a #6 upper. Would not be that hard to do. Ask Tyson be a walk in the park for him. Big silver cat.

Originally Posted by 14 apache (Post 4501792)

If that motor is running at 100kpa and comes out of the water that ecu is not going to have a clue unless it hits a rev limiter. Or it looks at RPM increase over time. Someone help me.

Originally Posted by hogie roll (Post 4501796)

I was thinking a splitter after the engine but I like your idea too. The real cure is that beefy duo prop surface drive that scs? Was working on. Someone needs to put more effort in that for these high HP singles. With all the power available these days you could push 35' boats with a single.

Originally Posted by 900HP (Post 4501797)

*if* the pilot chops the throttle, there will be a vacuum spike. If the pilot does not chop the throttle, the rpm will go into the hysteresis zone and start pulling timing until the engine lays over or hits the hard limit and it will NOT go over the hard limit by more than about 20 rpm at the very most.

Originally Posted by 14 apache (Post 4501798)

And sea tow for the trip home. LOL I think the adapter for twin bravo to a #6 would not be that bad.

Originally Posted by hogie roll (Post 4501806)

NBD, no one goes offshore anyways :D

Originally Posted by 14 apache (Post 4501801)

Only asking have you bin in a 100mph boat in 4ft seas and hit a hole you don't see? I watch my tach go to 7000 before I could blink or think about pulling back on the throttles. Don't take that the wrong way just asking.