Fuel usage

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cuz_im_CR

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« on: April 15, 2014, 10:43:31 AM »
Sorry if this is the wrong spot for my question

So I currently have a eliminator 207 skier with a 350 and a alpha one... im considering selling it for a spectra 20. I love these boats but they are hard to find with an outdrive.

How bad is the fuel consumption on a mini day cruiser jet boat vs an I/O? this my only concern... I can currently do 4-5 laps on elsinore on 15ish gallons.

Thanks,
Chris






ka0tyk

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« Reply #1 on: April 15, 2014, 10:54:49 AM »
why get rid of the eliminator?  mpg is gonna be the same... mayyyybe a little worse depending on pump effeciency/wear.  but in reality whos lookin at the gas gauge in these things?  just throw money at it.

cuz_im_CR

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« Reply #2 on: April 15, 2014, 11:15:38 AM »
I love my boat... I took it out about 35 times last summer and ive already gone 4 times this year. I live in elsinore which makes taking it out easy. Problem is the lake is getting low and ive smacked my prop twice already.

I dont want to miss out on boating if the lake level gets any lower.


Jet Boat Willy

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« Reply #3 on: April 15, 2014, 11:17:05 AM »
All depends on your engine/jet/hull. My Hallett 23ft with a mild 460 and Berkeley JC with a place Diverter did remarkably well. 3 days in Parker on 32 gallons. Never did laps at Elsinore but still. A 350 I/O will get better mileage but a jet system when set up right with a BBC or BBF is not terrible.


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ka0tyk

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« Reply #4 on: April 15, 2014, 11:53:09 AM »
I love my boat... I took it out about 35 times last summer and ive already gone 4 times this year. I live in elsinore which makes taking it out easy. Problem is the lake is getting low and ive smacked my prop twice already.

I dont want to miss out on boating if the lake level gets any lower.

ssh dont tell me that... i just put a new shiney SS prop on mine...  :sly:

1milekyle

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« Reply #5 on: April 15, 2014, 11:59:11 AM »
Jet opens up the possibility of lower river runs too!

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« Reply #6 on: April 15, 2014, 12:09:43 PM »
1-3 mpg with a 466 BBF 850dp jet... Just hold a milk carton upside down, thats about how quick.

Jet Boat Maloney

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« Reply #7 on: April 15, 2014, 12:47:03 PM »

why get rid of the eliminator?  mpg is gonna be the same... mayyyybe a little worse depending on pump effeciency/wear.  but in reality whos lookin at the gas gauge in these things?  just throw money at it.
It's gallons per mile on my beast.
It's hard to beat the cool factor is a jet boat. When my wallets thin and cost is a factor you'll find me in the family cruiser(prop boat)!!!!


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ka0tyk

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« Reply #8 on: April 15, 2014, 12:48:36 PM »
It's gallons per mile on my beast.
It's hard to beat the cool factor is a jet boat. When my wallets thin and cost is a factor you'll find me in the family cruiser(prop boat)!!!!


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i have a 21 vdrive that caught my eye recently... thats the only way you'll get decent mpg out of a boat... toss a transmission in front of the drive.

beerjet

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« Reply #9 on: April 15, 2014, 01:10:11 PM »
These are boats....
If you're even thinking about fuel mileage, sell it and buy a prius.


-beerjet-

i dont but im all for stuffin shit in her ass to make her go away :-*

cuz_im_CR

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« Reply #10 on: April 15, 2014, 02:00:37 PM »
These are boats....
If you're even thinking about fuel mileage, sell it and buy a prius.


-beerjet-

Well thanks for your extremely useful input captain... (pun intended)

I DD a silverado and play in the desert with a bronco. Im not extremely concerned about fuel mileag I just dont want my current 100$ in fuel  on a weekend of boating to turn into 300$


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« Reply #11 on: April 15, 2014, 02:02:13 PM »
I have twin 15gal tanks I go to elsinore all the time I run a 502 with a berk. I dont look for mph when I get done I have used a half a tank.

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beerjet

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« Reply #12 on: April 15, 2014, 04:40:26 PM »
Well thanks for your extremely useful input captain... (pun intended)

I DD a silverado and play in the desert with a bronco. Im not extremely concerned about fuel mileag I just dont want my current 100$ in fuel  on a weekend of boating to turn into 300$
Ha ha ha!
Here's the way I see it.
The lower the prop gets, the better the "fuel consumption".
Ourboards, hands down
V drive in my option with the option in gearing a trans, v drive and props.
I/o with prop selection.
And dragging ass in last a jet.
It's all gonna come down to what's more important.
The way I see it, you should pick the one you like the most and optimize the hardware and be done with it.

-beerjet-

i dont but im all for stuffin shit in her ass to make her go away :-*

GT Jets

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« Reply #13 on: April 15, 2014, 05:44:03 PM »
I can burn 14 -15 GPH in a big block jet, lets call it 60 MPH to keep it simple. At 60 MPH our big block I/O burns closer to 7-8 GPH. Top speed of our Spectra 20 with a big block was right at 60, top speed on the Big block I/O powered 22' Crusader is about 70MPH.

My small block Alpha I/O in a 20.5 foot Carrera Elite should do about the same (70MPH at close to 7 GPH)... The only reason I say it is because that is what the boat mine is modeled after does. It had a 350 MPI in it. :sly:

Hope that helps.

GT
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cuz_im_CR

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« Reply #14 on: April 15, 2014, 06:40:00 PM »
I can burn 14 -15 GPH in a big block jet, lets call it 60 MPH to keep it simple. At 60 MPH our big block I/O burns closer to 7-8 GPH. Top speed of our Spectra 20 with a big block was right at 60, top speed on the Big block I/O powered 22' Crusader is about 70MPH.

My small block Alpha I/O in a 20.5 foot Carrera Elite should do about the same (70MPH at close to 7 GPH)... The only reason I say it is because that is what the boat mine is modeled after does. It had a 350 MPI in it. :sly:

Hope that helps.

GT

Thanks for the reply.... that puts it into perspective.


JohnnyHavasu

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« Reply #15 on: April 15, 2014, 08:21:24 PM »
I live in Lake Elsinore and I go there all the time. Ive got a 21' Commander with a 468 Chevy with a Berkley jet. Jets have the worst mileage because you can not compress water. Props are much more efficient. Ever seen a jet on a 30+' boat? Lately times are tight. I go one half lap to the Cove, then half lap to the ramp. Unless I got kids and were are doing wakeboarding. ;-)

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rush1

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« Reply #16 on: April 15, 2014, 09:04:05 PM »
I live in Lake Elsinore and I go there all the time. Ive got a 21' Commander with a 468 Chevy with a Berkley jet. Jets have the worst mileage because you can not compress water. Props are much more efficient. Ever seen a jet on a 30+' boat? Lately times are tight. I go one half lap to the Cove, then half lap to the ramp. Unless I got kids and were are doing wakeboarding. ;-)

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JohnnyHavasu

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« Reply #17 on: April 15, 2014, 09:10:48 PM »
Here's us at Desert Storm last year!

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« Reply #18 on: April 15, 2014, 09:16:26 PM »
4 gallons will get me 6 miles. 461 and a 1150.  :screwy: :screwy: :beer: :beer:
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« Reply #19 on: April 15, 2014, 09:20:04 PM »
4 gallons will get me 6 miles. 461 and a 1150.  :screwy: :screwy: :beer: :beer:


LOL, that unfortunately sounds stupid close.  :screwy:
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« Reply #20 on: April 15, 2014, 09:49:58 PM »

4 gallons will get me 6 miles. 461 and a 1150.  :screwy: :screwy: :beer: :beer:
That's pretty close to mine.


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« Reply #21 on: April 15, 2014, 10:03:15 PM »
That's pretty close to mine.


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Or ...... 4  1/4 mile runs with 91 and no nitrous.  :screwy: :screwy: 3 with 116 and nitrous  :sly: :sly: :screwy: :screwy:
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« Reply #22 on: April 15, 2014, 10:32:04 PM »

Or ...... 4  1/4 mile runs with 91 and no nitrous.  :screwy: :screwy: 3 with 116 and nitrous  :sly: :sly: :screwy: :screwy:
Well that should tell you about how much fuel you're flowing w/nos. Does it like that 116?


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« Reply #23 on: April 16, 2014, 02:50:48 PM »
Here's us at Desert Storm last year!

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sweet float looks great

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« Reply #24 on: April 16, 2014, 03:45:53 PM »
Well that should tell you about how much fuel you're flowing w/nos. Does it like that 116?


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yeah i know. it took 8 seconds of nitrous for firebird, so we used a bunch.
We did a few things between the races, but adding the new crank trigger going from 36 to 40 on the motor woke her up! that Q116 really is some good stuff!
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