Most gas you have used in your jetboat?

[white moose]

Went up the Muskwa in sept, fully loaded in a firefish hammerhead and burned 25 gph. Is this insane or not? new boat.

[Badbrutus]

What size of motor?
How heavy were you loaded?
What kind of current were you fighting?

There are lots of variables when it comes to fuel useage. I can change the fuel consumption in my thunder jet from thrifty to full out ridiculous depending how I am running.

[white moose]

5.7 ltr zzr 355 hp
Had 4 people and all the gear for 10 days, extra gas. We were running at 4000 rpm,most of the way.
These boats are heavier, than I thought.

[SHAKER]

Kind of sounds like your getting humped by an Arabian Camel........ I know them squirt boats are thirsty but WOW!

[91Jason91]

I dont own a Jet boat but I went on a buddies once and the thing was insane on gass, I have 2 other boats and the things are piggs.

[Jetboater]

I burned 2 80 gallon tanks a couple years ago on canada day, premium as well, thats when it was 1.56 a liter

[tuchodi]

Get used to it, that's what fun cost's. Our fuel bill for running the Muskwa and Tuchodi is approx $3000 each year.

[Amphibious]

Went up the Muskwa in sept, fully loaded in a firefish hammerhead and burned 25 gph. Is this insane or not? new boat.

wow, that's the burn rate for a Bell 206 Jetranger. you could have been here in half the time for for same gas bill :p

[kendoo]

There's more to life than gas mileage!!!!

[Fraink]

$150/HR is cheaper than a lawyer HAHA! The bell 206 might use the same fuel but it won't carry the same load and you can't use it for a hunting trip. I thought about buying a Jet but decided I already had too many holes to throw my cash into.

[bridger]

with my 23 foot boat with a 350 chev in it i burn 8/10 gph loaded. sad to say but if you are worried about fuel costs think twice about buying a riverboat. there is nothing cheap about river boating.

[Rock Doctor]

I think it was Doug Lamb that told us he was burning a little over 60 gal/hr, but he was hauling 12 horses and 3 Round Bales for a load.

You're higher than most guys will admit to, but not out of the ballpark for a heavy load.

RD

[swampthing]

I have been in on 2 boat trips and both times we brought more fuel than needed. On the first trip we couldnt even get on step until we ditched some fuel. 175 sportjet

[shallowH2O]

went up during the same timeframe with my 200 sport jet. burnt about 80 gallons on the run up, but we were carrying an extra 120 gallons plus a full camp up above alligator allley

[Jagermeister]

Jet boat=deep pocket$

[Fixit]

42 ft trojan with twin 350 crusaders (454's) burns 80 GPH wide open... 25 seems pretty good

[Barracuda]

not all boats cost an arm and a leg to operate it depends on if you have a heavy pig of a boat that is built to impress people or a well built boat that built to impress yourself.

the other part of it is seriously take notes on fuel consumption at different loads as sometimes running 15 km faster will mean the fuel economy drops to half.

if you use your head it really doesnt have to cost that much to run a jet unless you happen to damage it ,then it will cost you time or money .

[trebreklaw]

Doug Lamb Twin 460s on Kechicka 80 gph that brings back memories.......T

I ran up Turnagain full load 1800 lbs on my 4.3 liter with comp cam used 8.5gph....

Lots of variables but it costs lots but great way to go. Freedom comes at a price!!!!!

[nap]

:-DDid the trip up the tuchodi in sept. 4 brothers and all the gear, went to the far end of the 2nd lake, with a bit of road hunting below the outfitters, checked the merc smartcraft back at kledo creek and gulped up 88 us gallons. Loved every sip that 200 merc took.:-D

[f350ps]

I burned 2 80 gallon tanks a couple years ago on canada day, premium as well, thats when it was 1.56 a liter
And that's relative how? Jets are spendy to run but I'm not surprised with the load that I'm imagining for 4 guys for 10 days, could you get on step? K

[gitnadoix]

Get a fuel flow meter on your boat grab a GPS and then all the empty garbage cans you can find and head to the nearest lake.......Then spread out the garbage cans in the boat and fill them up with lake water (1 imperial gallon equals 10 pounds,) so put your camp weight in water on board, in fact try all sorts of diferent weights that you will be running with.......then run up and down the lake and carefully record gps spead and its related Gallond/hour at various rpms......then sit down and do the math and find out what rpm for each load gives you the best economy.....it is not alway obvious......at 4200 rpm my 175 SJ with a two person 1 week hunting load sounded perfect and felt right......but I get about 15% better economy at 4650 rpm which when your in the boat sounds like yer racing and with some of the distances on some long long trips this little excercise has more than paid for itself over the years........pluss the strange looks ya get when bucketing water into your boat is almost worth it.........

[Jack Russell]

5.7 ltr zzr 355 hp
Had 4 people and all the gear for 10 days, extra gas. We were running at 4000 rpm,most of the way.
These boats are heavier, than I thought.

4 hunters and all the gear for 10 days and extra gas is heavier than you thought! The boat isn't the issue. 4000 rpms most of the way is going to burn that much fuel. How you run or on specifics types of water can help reduce revs and save some gas (staying in the riffles/shallows helps elevate the boat, travel quicker).

At least you got up there and had some fun! Sounds like the boat is a real hauler!

[Crossfire]

Went up past the outfitters on muskwa last august. 3 people, all the fuel and gear etc., 19ft TJ 330hp 5.7, fuel injected. Burned 380 liters going in (appr. 5.5 hrs), 200 liters coming out. I probally went in alittle faster than required.....but got there. Interesting thread.....alot of guys dont like admitting what their boats actually burn, its the same with their pickups.......actual mileage is always way worse than they say.

[kendoo]

If you think 12 gal. an hour is bad convert that to miles per gal @ 25 miles an hour full load OUCH. But not to bad with 22 ft. & 454 400 hp.

[792]

5.7 ltr zzr 355 hp
Had 4 people and all the gear for 10 days, extra gas. We were running at 4000 rpm,most of the way.
These boats are heavier, than I thought.
What pump do you run?

[Barracuda]

This is a copy and paste but as you can see depending on what your pushing in the water fuel economy is definatly doable .

The days of the bigger is better jetboat are numbered as fuel prices increase and limitations on the size of boat that can be stored or towed are getting smaller .



http://www.jetboatsofmontana.com/Home
"jbm (http://firefish.ca/forum/memberlist.php?mode=viewprofile&u=2809)
i know it's alot of i don't knows but this motor is just a proto type at this time
yes we are looking at 4 gph fuel burn unloaded
i just put 10 hours on 1 of the 750 mpe 143hp with a 6" pump and only burned 6 gallons for the whole 10 hours
it was some running at 28-30 mph and some trolling at 1.6-1.8 mph
we run this set up hunting loaded and unloaded for a total of 150 miles and got an average of 3.5 gph fuel burn rate
the 300 hp V4 should be in the 275 lb range and the scott 751/752 is around 120 lbs
we are also setting up a boat to run the new mpe 850 turbo 160 hp with a 6" jet pump
i will post all the real world stats on this set up as soon as we have a few hours on this set up"

http://www.weber-motor.com/fileadmin/templates/w-motor/content/produkte/specsheets/V4_NA.pdf

[BCRiverBoater]

Wow you must have been running way more RPM than required or you were way, way too heavy!

I hunt every fall with my 17' firefish with a 200 merc and go with buddies with a 19' hammerhead with a LS2 (400ish HP) and 21' Shuman with a 6.) litre Vortec. None of us have even burned half of what you did an hour. The last two years were on the Muskwa.

This year I had 3 guys, 160 gal of fuel with all our gear and camp for 10 days. This is the heaviest I have been on any trip. I barely could get on step and I still only burned about 12-13 gal/hour for the first two hours then I was down to 10-11gal/hour for the rest of the trip up river. On the way down with all the gear, some gas and one elk I was down to 8-9 gal/hour.

And the two bigger boats had way heavier loads every time and burn less gas than I do in mt 200 opti when loaded. They are around 8-11 gal/hour at the most when loaded at the start of the trips. They go way faster and burn less gas than I do.

I can not imagine you burning that much gas in any newer boat unless you are way way too heavy on the throttle. I can not imagine that you are heavier than my buddy in his 21' Shuman that has 3 guys and their camp. The only thing you have is the 4th guy and the little bit of his personal gear. But my buddy packs close to 200 gal of fuel so he is heavy and the Shuman boats are heavy strong boats.

I think something is wrong with the calculation or you could have backed off on the RPM a bunch. No reason to burn more than 12-13 gal/hour no matter how heavy you are and you could reasonably get down lower than that with packed properly. Maybe you had way too much weight in the rear making it hard to stay on step. You need a lot of weight forward to be loaded properly.

[2SHALLOW]

Went up to the frog last spring in my buddies 21' twin 175 muskwa to do a gas run for the fall, we brought 180 gallons total we were going to drop off 70 gallons we ended up buring 140 gallons on the trip LOL, we ended up leaving 30 gallons stashed for the fall. That was over 12 hours of boating. My personal boar is a 17 bulldog 200 sport jet, burns about 7-8 gallons an hour at 3800 rpm. Burns about 10 gallons an hour fully loaded with gear extra 70 gallons of gas.

[pete_k]

My wife and I were camping at Mcleod Lake last year. This guy pulls ashore with a beautiful newer 20 plus foot jetboat with a for sale sign in it for $35,000.
I joked to my wife, "that's just for the gas, the boat is extra"

Worse things to spend money on. Thats for sure.

[ryanb]

Like others have suggested, something sounds wrong. My 200 opti can't even burn more than 18gph at wot, and loaded with 110 gal, gear, 2 guys I'm only doing about 7-8 gph at optimum efficiency. Another thing to keep in mind is that you can save a lot of gas running in the shallows and staying out of the fastest water when going upstream...but remember the fastest water is usually the deepest water so be ready for more bumps.

[white moose]

My first thought was something must be wrong. I'm running a scott pump, which i blew the hydraulic reverse shaft on. I bought this boat off a guy in sundre, thinking now i know why he sold it. He bought the boat and put the motor in himself. Boat only has 50 hrs. Any other hammerhead owners out there? Need to really work out the milage thing. Fun=money

[792]

I would look up Schlagel marine and get that pump dialed in. Lots of variables in a scott jet.

[Kapow]

I usually only bring one buddy in my 17.5 er (more room for more beer) with a vortech 350 and burns 6gph without camp and 8 with. Add a mature bull moose plus camp for the ride home, then she really starts drinken the gas but never have to run it over 3400 rpm except for getting on step. I think 25 gph could mean somthing else is wrong.