Anyone else experienced this????

[91Terminator]

Agreed, but as an aside I wonder why they don't put baffles in fuel tanks to reduce this sloshing. I guess if the tanks are blow molded it would be tough to have interior walls, but if they're done in halves and then ultrasonically welded it would be a piece of cake. There are a lot of people making fuel tanks out there... must be some reason no one does this.

Why spend the money? Auto manufactures only use baffles to keep fuel by the pump. The pump in the boat is on the motor and the pick up is at the back of the tank so fuel is always where it needs to be. There is no need for a baffle.

[Timmy!]

I don't think all new cars have baffles either, you should hear how much the gas sloshes around in my '06 Mustang.

[IDBoating]

There is no need for a baffle.

Not functionally, perhaps, but the fact that people are annoyed by the variable readings of the fuel tank gauge sounds like a reason to do it. If it could be done economically, that is.

[91Terminator]

Not functionally, perhaps, but the fact that people are annoyed by the variable readings of the fuel tank gauge sounds like a reason to do it. If it could be done economically, that is.

They are only annoyed cuz they dont understand how it works. Adding more cost will only annoy more people. If you look at the gauge when you are idling it is accurate. If you look at it while going a steady speed it's accurate but up and down on the throttle and or in an out of turns is the only time it's not accurate.

I personally only pay attention to the gauge when it's ideling becuase If it's more then 1/4 full, when under way no matter what it reads it's going to have plenty at the back where the pick up is.

[scoot18]

This occurs due to engine and propulsion torque. When throttle is applied the prop rotation (counter clockwise) creates torque in the opposite direction which pushes the port side of the boat slightly upward. It remains constant while underway because unlike a car traveling on level ground the torque has a smaller effect because it requires less effort/energy to maintain a set speed; where as a boat traveling in water is similar to a car traveling up hill all of the time, the necessary forces and energy to propel the boat through the water creates a constant force again force and the boat list slightly towards the starboard side. If the propeller rotation went clockwise the boat would list in the other direction.

[IDBoating]

This occurs due to engine and propulsion torque.

...except that it doesn't always happen on near-identical boats. And it isn't specific to certain kinds of boats.

My previous boat was a jetboat - totally different kind of powerplant, with an engine crankshaft that ran vertically and thus whose torque would tend to turn the boat left or right (and did, too). More importantly, jetdrives have a stator that deswirls the water coming off the impeller and converts that rotational energy to linear energy for additional hull propulsion.

Despite this, my boat listed to one side until it was on plane. A discussion of this on a chat site like this one, but for jetboat owners, revealed that it was a common situation. A significant minority of boats like mine did this. Some tilted one way, some the other, and some didn't tilt at all. These were production boats, made the same, offering very few factory options.

Trust me, I went through my boat in detail looking for anything that could have caused the weight to be off balance. I found nothing. Others did the same, also found nothing, and yet their boats tilted opposite mine.

My conclusion is that there is sufficient manufacturing variation in fiberglass construction to permit a weight imbalance from side to side. Some people are able to level out their hull by shifting a cooler, or a battery, or one person, from one side of the boat to the other. Those are weights in the 30-150 pound range, and over the length of a 20+ foot hull it doesn't take much variation in fiberglass thickness to give you a 30-150 pound difference.

Just my theory.

[2thdoc01]

My old boat sat flat....the RZ2 def has a list...Im going to have to check it out closer!