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WakingMeHappy

Top end speed

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WakingMeHappy

I have a 99 Sunsetter with about 560 hours. Boat runs great and am having no trouble. Sometime a little white smoke when I start the engine but it goes away quickly. Engine is the 325hp Monsoon.

Two questions:

1. What is top end speed on this boat? I’ve had it up to 42 with throttle left over.

2. The kids want to top out the speed to see what she’ll really do but I’m scared to do it. How would the engine and tranny hold up under top-end speed?

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TheKiwi

Engine and tranny will hold up fine, your top speed is generally limited by what type of prop you have. 42 sounds about right for a sunsetter.

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Sixball

Hammer down!!!!!!!!!!!!!!!! Just don't stay all day.

It tops out and holding it open for a long time is not going to make it go any faster.

I have never hurt one.

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tcody

I have a 99 Sunsetter LXI with the Monson. Top speed is 46 mph wtih 4600 rpm. I run mine wot alot for barefooting. Have not hurt an inboard engine yet. Go fast.

TLC

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Pistol Pete

I clobber the throttle at least once a day and keep it there for a good min. just to clean up the carbon in the engine.

Boat is a 2000 WS VLX w/monsoon. I think I get close to 48 these days. You won't hurt anything.

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wakeboy

Malibu's don't go fast enough to be considered reckless when you are on a good size lake. Drop the hammer and see what you got. That's part of owning a boat. Just don't think you are going to outrun many other boats. Most I/O and Jet Ski's can still outrun me. That is when I slow down and start surfing, lets see them do that.

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85 Barefoot

I bet 44...I don't floor mine much but it won't hurt it for a little while. If anything it might be good for it.

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Michigan boarder

Every boat is made for WOT (Wide Open Throttle) operation, the issue is whether it over-revs. Assuming it is propped correctly, your boat won't do that when your are on the water boating, it's under load. Same applies for your snomobile. Your car will, and that's when you shift.

Everything I own gets hammered at some point, I wouldn't have it any other way.

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OTN

Throttle down- if you have a rev limiter, no danger in over-revving. Even if you don't, your top speed on a ski boat will be severely limited by the prop, as it's sacrificed for low-end torque for pulling.

Speeds in the low/mid 40s won't be reckless on a decent-sized lake. Ever driven a bass boat to 80 mph? :rockon:

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Malibudude

I have a 99 Sunsetter LXI with the Monson. Top speed is 46 mph wtih 4600 rpm. I run mine wot alot for barefooting. Have not hurt an inboard engine yet. Go fast.

TLC

I was able to get a just over 46 mph in my old SLXI w/o a biminy or tower. Running a boat at WOT is perfectly normal and in fact Indmar recommends about a 15 min WOT once a month is good for it.

I got our VLX up to 43 but that was with a bit of a tail wind, only me, no ballast or wedge and no biminy.

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kb3

:cry: my 247 tops out somewhere around 36 and that is only on smooth water with no one else in the boat. It may have more, but it bounces off the rev limiter at that point.

I prefer to run no more than 25, otherwise I can't keep the fuel in the tank. :crazy:

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Malibudude

Cry.gif my 247 tops out somewhere around 36 and that is only on smooth water with no one else in the boat. It may have more, but it bounces off the rev limiter at that point.

I prefer to run no more than 25, otherwise I can't keep the fuel in the tank. Crazy.gif

Dang, that's true man at WOT you can see the needle move....Cry.gif

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RTS

Your Monsoon has a rev limiter...no worries there.

The engine manual for the 325 Monsoon (same engine as is in my boat) says you should be turning 4800-5200 RPM at Wide Open Throttle.

I get about 50 RPM shy of 5000 RPM and 47 MPH indicated when at WOT.

And one more thing...while WOT operations will do no harm to the engine, I saw a boat test from around 2002 that said the Monsoon will be burning in excess of 30 Gallons per hour at that setting...OUCH!

Edited by rts

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YJim

'97 Sunsetter LX, Monsoon 320, GPS [email protected] 5100RPM top end with 2 people, OJ stainless 4 blade 13x13 prop...

Edited by YJim

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travlnmannn

I have a 99 Sunsetter with about 560 hours. Boat runs great and am having no trouble. Sometime a little white smoke when I start the engine but it goes away quickly. Engine is the 325hp Monsoon.

Two questions:

1. What is top end speed on this boat? I’ve had it up to 42 with throttle left over.

2. The kids want to top out the speed to see what she’ll really do but I’m scared to do it. How would the engine and tranny hold up under top-end speed?

My last BU was a 98 Sunsetter LX 325hp Monsoon. I went WOT many many many times. I have the need for speed :crazy: !!!! Never had any problems. Topped out at 47 with the right conditions. Have fun and go WOT

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Lakenut

My 01 tops at at 43.8 on the gps with tower, bimini, and 2 boards in the racks.

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UWSkier

Saw 51 once with a tailwind GPS-verified. On calm, flat water, about 48 is typical with our 17.5" pitch prop (v-drives tend to be faster than direct-drives). As others have said, let her sing at full cry every once in a while. It's good for the engine, but bad for your wallet as it's a great way to go through a lot of gas in a hurry.

Edited by UWSkier

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Pistol Pete

Here's what I've been doing at the airport....

RICH.jpg

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footnlongline

Here's what I've been doing at the airport....

RICH.jpg

Is that a eject button to the left of your capacity sticker?

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UWSkier

That's a warning light for the V drive.

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skyskier

I have a friend who never ran his 2000 MC at full throttle. Someone told him it is good to run WOT now and then to blow out the carbon. The engine blew the first time he tried it. I don't know any of the details. Just sayin'.......

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JDubya

That's a warning light for the V drive.

...no no no it's the wallet warning light. Warns you when your wallet is about to get lighter. :crazy:

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TrickyNicky

...no no no it's the wallet warning light. Warns you when your wallet is about to get lighter. Crazy.gif

So does it illuminate when you start the boat and only turn off when the battery is disconnected or the bulb goes out Bash.gif

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