Maximum cruising range - V21 with 150hp

[bgreene]

Question the specification rating of over 230 miles with 150 hp ?

Based on my last two trips, I'm thinking more like 125 -150 miles real world maximum.
I have a 96' 150hp, and the Wellcraft spec was written for 1996 outboard so it lines up.

I know - " based on weather, sea conditions, load, and running at a steady lowest rpm to maintain planning speed".....

Opinions ?

[Destroyer]

Question the specification rating of over 230 miles with 150 hp ?

Based on my last two trips, I'm thinking more like 125 -150 miles real world maximum.
I have a 96' 150hp, and the Wellcraft spec was written for 1996 outboard so it lines up.

I know - " based on weather, sea conditions, load, and running at a steady lowest rpm to maintain planning speed".....

Opinions ?

You forgot prop also. that has a lot to do with it..Oh... and a strong tailwind.

[THEFERMANATOR]

Depends on what engine you have. Your 96 150 OMC is a thristy son of a gun drinking around 10 GPH or so at a good cruise probably pushing you about 25 MPH. So that would put you around 2.5 MPG, and a safe 50 gallons of useable fuel gives you 125 miles of range. Now an equivelant YAMAHA of that era in a 150 would probably drink about 8 GPH giving you 156 miles of safe range. Put a 14 SUZUKI 4 stroke on it though and watch your range go up to about 250 miles.

[bgreene]

That's what I get for having a big Johnson.......oops, I mean Evinrude.

Maybe Wellcraft provided the 230 mile range based on running the boat " downhill" most of the time ? Not sure they had a 4 stroke back in 96' and if so maybe too heavy .

Just thought of this.......if I trailer the boat, then maybe I'll get 230 mile range, driving the Ford Explorer at a steady 50 mph on flat land with a tail wind.

[cmoney]

I have a 94 v21 with a Johnson 150, put 50$ or 15 gal of non ethanol in on sat and reset the gps trip. With 4 people in the boat and 12mph wind we ran 50 nm
on lake hartwell before stopping for more gas. With a mix of trolling, downlining, and cruising at around 24 knots. Avg just above 3 nm per gal for the trip, which i thought was pretty good for that ol 2 stroker.

[THEFERMANATOR]

That's what I get for having a big Johnson.......oops, I mean Evinrude.

Maybe Wellcraft provided the 230 mile range based on running the boat " downhill" most of the time ? Not sure they had a 4 stroke back in 96' and if so maybe too heavy .

Just thought of this.......if I trailer the boat, then maybe I'll get 230 mile range, driving the Ford Explorer at a steady 50 mph on flat land with a tail wind.

The little ones were just as thirsty as the big ones at cruise, that was why so many people opted for the 200/225 over the 150/175.

[bgreene]

To wonder about those specific differentials..............1996 engines, same year V21:

Evinrude 150hp fuel burn at 4,000 rpm.........WOT top speed (41mph) and fuel burn rate.
Evinrude 200hp same
Evinrude 225hp same

Most of us see about 39-42mph top speed with carb'd 150hp outboards.
That lines up well with the Wellcraft spec data.

[phatdaddy]

haven't seen the link, but that 230 range might be possible for a 150 hp i/o.

[bgreene]

From the data I've read, the most fuel efficient 2 stroke 150hp outboard today is the Mercury Opti Max.

So, assuming it's likely 30 % more efficient overall, it bumps the cruising range from 125 miles to 162 miles..........still way short of the advertized 230 miles.

Maybe as poster stated - the I/0 yields close to that efficiency/ range.

[THEFERMANATOR]

The 96 specs with a 200 MERC lists the range as 178 miles which is about right I would say for a 200 and figuring 60 gallons of fuel. http://wellcraft.com/index.php/resources/down_load/information/1996/WC_PIG_V_21_96.jpg

The 150 OPTIMAX would increase your range pretty significantly though probably pushing you out to the 230 miles or so.

[ssiredfish]

I have an '07 150hp Yamaha 4-stk. My full load is around 3,000lbs. Thats 4 heads, Ice, tackle BUT excluding the 400lbs of fish I bring home:hi:.

At typically seas(2-3') and cruise(28-32mph) Im getting between 3.2-3.6MPG. That puts my range in at 180-201mi.

Now same conditions with light load Im in around 212-230mi.....

-BUT-

My buddy had a 175 4-stk Suzuki on a 21' Pioneer CC. We would make 170mi on 45g's......pretty impressive:clap:. Although our soakin wet clothes added a few more lbs to the load......

[bgreene]

I have an '07 150hp Yamaha 4-stk. My full load is around 3,000lbs. Thats 4 heads, Ice, tackle BUT excluding the 400lbs of fish I bring home:hi:.

At typically seas(2-3') and cruise(28-32mph) Im getting between 3.2-3.6MPG. That puts my range in at 180-201mi.

Now same conditions with light load Im in around 212-230mi.....

-BUT-

My buddy had a 175 4-stk Suzuki on a 21' Pioneer CC. We would make 170mi on 45g's......pretty impressive:clap:. Although our soakin wet clothes added a few more lbs to the load......

What's the 4 stroke weigh, and is it a bit heavy for the V?

[ssiredfish]

What's the 4 stroke weigh, and is it a bit heavy for the V?
www.google.com (http://www.google.com) , no

[randlemanboater]

I get around 5mpg at 22-25 mph with my Johnzuki 140 4 stroke...but I only have a 40 gallon tank so my range is not what it could be with a 60 gallon tank.

I have never even come close to running out, infact, I often go 2 or 3 days without gassing up.

My motor weighs 410 pounds, it doesn't seem any different than the 150 Merc that was on it when I got the boat.

[SkunkBoat]

Now, accurately calculating GPH and MPG is difficult without specifically setting out to do such. Without a flow meter, you have to run a specific course and try different speeds and accurately measure your fuel and try again...not likely that anyone is going to do that.

I've got the Suzuki 140 4 stroke. I have made a 100+ mile trip three times and refilled about 33 gals each time. But...

I can't say for certain how much farther than 100 I went. I know for sure it is 50 from the inlet to the destination. Its 9 mile round trip from inlet to dock so lets say 110+.(yea, yea, I could figure out how to get that info out of the gps but I'm tired!!!)

I trolled around for hours while there.

I didn't come back directly, I hit spots on the way in.

I don't know for sure that "full" is the same when I gas up light and by myself vs. heavy with coolers, gear, and 3 guys onboard. "Full" meaning that the gas spit out the vent.

I can say for sure that I get no less than 3.3 mpg running a mix of speeds including 4 hours at 25 to 30 mph.

I would say that I could probably get 4 mpg running 25mph @ ~4500rpm in a straight line without stops on a flat sea... so 240 mile range would be theoretically possible with a 60 gal tank.

But I won't be running to the Hudson Canyon for yellowfins, much as I'd like to... ; )

[RidgeRunner]

Big Optimax get good mileage on a bracketed center console.
http://www.wellcraftv20.com/community/showthread.php?t=16607&highlight=250xs

I can get up to 5 MPG. But that is in near perfect conditions and a very light load running on a river. Worst mileage to date was with the 24p Tempest hauling 10 people off the scallop grounds last weekend. Dropped back to 3 MPG. Made the little 250 grunt a little. It isn't propped to haul that kinda weight. Cruise at 4000RPM at about 30MPH on GPS.
Figured on 60 gallons useable, driving civilized, the range is from 180 to 300 miles depending on the load and conditions.

[bgreene]

Big Optimax get good mileage on a bracketed center console.
http://www.wellcraftv20.com/community/showthread.php?t=16607&highlight=250xs

I can get up to 5 MPG. But that is in near perfect conditions and a very light load running on a river. Worst mileage to date was with the 24p Tempest hauling 10 people off the scallop grounds last weekend. Dropped back to 3 MPG. Made the little 250 grunt a little. It isn't propped to haul that kinda weight. Cruise at 4000RPM at about 30MPH on GPS.
Figured on 60 gallons useable, driving civilized, the range is from 180 to 300 miles depending on the load and conditions.

Yup, I'm a fan of big outboard that runs easily on medium size boat.