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Thread: gas mileage ?

  1. #1
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    gas mileage ?

    have 454 mpi in my 98 253 with a 23 p mirage prop put about a hour on the boat today just cruising around mostly about 35 mph and went through about 100 bux in gas is that right? I was thinking about putting a 25 or 26 4 blade on it. I am thinking that will help th fuel mileage alittle.

  2. #2
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    its close to 5000 rpms at wot. that why I was thinking alittle more prop. at about 32-35 its at about 3300 rpms

  3. #3
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    I would not go any higher then a 24p bravo 1 4 blade. If you have a stock 454 in that 253 a 26p will be to much prop. That 23 sounds about right for your set up

    How much are you paying for a gallon of gas

  4. #4
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    strange, my boat has a great cruz speed. at 3400 rpm im at about 42 mph 3600-3800 in just about 50 mph. top speed sucks tho at about 60-62 depending on the load.

  5. #5
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    paying about 3.05 a gallon.

    noyzee- what kind of boat do you have and what prop is on it?

  6. #6
    Registered baja bailey's Avatar
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    Looks like you used about 33 gallons, seems a little much for an hour of just cruising ?

  7. #7
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    ya thats what i thought!

  8. #8
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    I have a 95 253 509 procharged. If I cruise at 3000-3400
    rpms turning Bravo 1 34p. I'll use about 11 gallons an hr. If I run hard I seem to use 11 gallons a minute!

  9. #9
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    so i am thinking either a 24 bravo 1 or a 25 3 blade.

  10. #10
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    Quote Originally Posted by ck253 View Post
    so i am thinking either a 24 bravo 1 or a 25 3 blade.
    A 25p will be to much also if you are stock in your boat. A 24p bravo,, I really think will be pushing it to much.

    You say you have a 23 turnning a hair under 5000 rpms maybe 22p bravo 1 4 blade would be a better choice the more I think about it.

    What HP is your engine


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