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YEAR MODEL FUEL CONSUMPTION

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sbb03

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Can some tellme the year of th

Can some tellme the year of this 200 magnum EFI ser.OG129988 and what kind of fuel consumption can be expected from this motor? Thanks
 
"Steve, that's a 1995 mode

"Steve, that's a 1995 model.

Fuel consumption is so variable, depending what you have it hanging on, how you use it etc etc

However, general rules of thumb -

If you run your 200 at wide open throttle it will burn 20 gallons per hour (yes, I typed that right).

There will be a "sweet spot" which is a little different on each engine. It's the point where you are at max timing advance but still have lots of throttle left. On yours it's probably somewhere around 4000-4200 rpms (give or take) - there you should only be burning 8-10 gallons per hour.

However, your "habits" will have alot to do with how it burns gas - popping a skier out of the hole burns gas, tooling around all day towing a tube is the same etc....."
 
Thanks for your help the motor

Thanks for your help the motor is on a 20 ft skeeter bass boat and I have only had it out once and the fuel gauge fell real fast. It has a Mach 4 blade prop 14>24 on it.It also came with another prop a Quicksilver 48 11078 a40 25p I take that it is 25 pitch but I don't know diameter.Which one give best fuel consumption or the pro and con of each prop. Thanks again Steve
 
"Steve, the two props serve di

"Steve, the two props serve different funtions.

Your 4 blade, 24 pitch is better suited for ski's, tubes, or just plain cruising. The extra blade helps you get out of the hole quicker, up on plane faster and keeps the "nose" down at lower speed. It does however shave 3 or 4 mph off your top speed - extra drag from the extra blade - however, the motor will run alot "smoother" because the prop is balanced better than a 3 blade.

Your second prop is Lazer II 13 3/4D 25P. It sounds like whoever had the rig before had the props matched quite well to the rig. I would expect a 3 blade to be 1" greater pitch than the 4 blade.

The Lazer will give you better top end speed, period. That's because the motor doesn't have to work as hard to turn the 3 blade compared to 4, so the pitch is increased (giving you more speed) but also making it harder to push, so the motor is operating in the same range in your case whether you have the 3 or 4 blade on.

**extra 1" in pitch = reduction of 200 rpms at the motor - going from 4 blades to 3 adds about 100-150 rpms at the motor***

The 3 blade would be considered an "all around" type prop (although there really is no such thing).

Personally I would run the 4 blade. The slower the speed you need to get on plane, the less gas you will burn while running provided you do not continue to give it gas. That may mean running somewhere in the low/mid 20's instead of running at 40 mph or better.

Speed costs, that's the bottom line. While it's nice to have the extra horses to get you back in, in case of a storm or other emergency, just remember that it will cost you about 80 bucks an hour in gas to open her up...

Could be worse though, here in Canada gas is over 5 bucks a gallon - that would be over a 100 an hour to run that motor at full throttle....

There are only two ways to save gas with this particular motor - 1) don't run it or, 2) keep the rpms down when you do..."
 
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