Gas Going Up - Any Way to Improve Jet Pump Efficiency?
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Gas Going Up - Any Way to Improve Jet Pump Efficiency?

  1. #1
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    Default Gas Going Up - Any Way to Improve Jet Pump Efficiency?

    Gas is up, and is now $4.69 a gallon for premium where I live (SoCal). I was wondering is there are any mods or accessories for improving jet pump efficiency. Are race pumps, such as the Berkeley 12JR with the inducer preloader impeller, more efficient?

    Michael

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    Senior Member jetboatperformance's Avatar
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    Jets and "fuel economy" are not neccesarily "synonomous" unfortunatley not a whole lot you can do beyond making sure alls working at max efficiancy (engine , trim etc ) and , just get out and vote !

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    Senior Member sandeggo's Avatar
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    LS

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    Senior Member SoldHondaBoughtHondo's Avatar
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    Get a boat with a propeller.
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    Boss of the McIntyre Mob danhercules's Avatar
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    Do more cruising than floorin it. My deck does ok as long as the secondaries stay closed. When they open, she drinks the fuel. Cruising I can go a few weekends.


    Very first TPR 21' Deck. 528 BBF 736hp on pump gas built by High Flow Dynamics

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    Ya were gonna be going upstream and floatin back this summer
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    Senior Member jet pilot's Avatar
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    just have to go floating and not boating.

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    You can drop your RPMs down with an impeller change, that might help a little. If you have a vacuum secondary carb, you could try a stiffer spring on the secondaries. That way it takes them longer to open all the way, if they ever do open completely. But as stated, nothings going to help as much as a lighter foot on the gas pedal.

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    Member Turbo Dan-O's Avatar
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    Quote Originally Posted by sandeggo View Post
    LS
    I am going with an LS and a prop this year!!! My daily driver is a highly modified Geo Metro that gets 65 MPG so yes I am all about some fuel mileage. Most of the things to save fuel will not be much fun in a boat. Things that would help will be: bumping up compression as high as possible for the fuel you want to run, lowering cruise RPMs, make sure everything is tuned up and not running rich, advance ignition timing, most of all make sure your friends help out with the cost of everything!
    Sanger V-Drive turbo/carb LSX project...

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    Senior Member jetboatperformance's Avatar
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    Did some math today , admittedly we don't use our boat as much as some , went thru a 50 gal drum and a half of fuel last season and will likley do the same this one, if gas is up a buck a gallon thats $75 bucks if I use it twice as much thats $150, Not happy about it and sure don't like it it but doesn't sound so grim when I look at it way , now the daily commute , thats a different question Gotta have drilling in the US and that pipeline Now folks !


    Edit : Sorry for the little "jog" to the politics but its tought to contain!

  13. #11
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    Quote Originally Posted by jetboatperformance View Post
    Did some math today , admittedly we don't use our boat as much as some , went thru a 50 gal drum and a half of fuel last season and will likley do the same this one, if gas is up a buck a gallon thats $75 bucks if I use it twice as much thats $150, Not happy about it and sure don't like it it but doesn't sound so grim when I look at it way , now the daily commute , thats a different question Gotta have drilling in the US and that pipeline Now folks !
    I agree with Tom. First thing is we need to have more domestic oil production to bring the cost down. Currently the crude oil and gasoline street prices are controlled by the FUTURES MARKET. Somebody can stump their toe in one of the OPEC nations and gasoline goes up here in the US a few cents before the day is out. I really don't fully understand the political philosophy not to utilize our natural resources, especially if we have plenty. Crude oil is still the most efficient means of producing gasoline and BTU's.

    Back to the topic.... As Tom showed, if he doubles his fuel useage from last year, his cost to operate will increase $150.00. Assuming your jet is in average condition, one cannot increase the efficiency of the pump to offset the fuel cost. If your pump is worn out, well, then it needs an overhaul anyway and it will cost in excess of $150.

    JMO
    Gear

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    Boat Nut sleekcrafter's Avatar
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    Senior Member OkieDave's Avatar
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    I am trying something new to me. a turbocharged LS-1 with EFI. AA impeller. not just for economy, its also lighter weight than the old BBF.

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    Senior Member Lildave's Avatar
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    Quote Originally Posted by Turbo Dan-O View Post
    I am going with an LS and a prop this year!!! My daily driver is a highly modified Geo Metro that gets 65 MPG so yes I am all about some fuel mileage. Most of the things to save fuel will not be much fun in a boat. Things that would help will be: bumping up compression as high as possible for the fuel you want to run, lowering cruise RPMs, make sure everything is tuned up and not running rich, advance ignition timing, most of all make sure your friends help out with the cost of everything!
    My jet boat is meant for wasting gas and relaxing.... but tell me more about this Geo Metro!!

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