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Old 03-15-2009, 10:05 PM   #1
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Default whats a good mpg for a 5.7 carb?

hi.

been out today for a run .with that bigger prop and new carb on

i did 36 miles on 80 ltrs of fuel :shock: .that cant be right can it?.

i had it say 4000rpm for 10 mins.to test the prop and its better less revs.

the rest of the time @2000rpm 10mph!.

i think thats a lot what do you all think :wink:
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Old 03-15-2009, 10:57 PM   #2
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Ouch! I generally use the rule of thumb of about 1mpg....

So, that'd be about right for you

How long were you running it for? We generally use about 80 liters in a full day (so about 6-7 hours); no idea how many miles that equates to...
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Old 03-15-2009, 11:17 PM   #3
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how i know what mpg i did.i also put on a new navman gps .i say 5hrs :?
i did.but with low rpm ?. ru flat out all day
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Old 03-16-2009, 12:17 AM   #4
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I have to ask you..what is your wot??...you should be between 4200-4800rpm..if your not in that range..then...you need to re-prop...what prop do you have on it now??..

SP..
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Old 03-16-2009, 03:00 PM   #5
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We aren't WOT, but are quite heavily loaded....
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Old 03-16-2009, 09:30 PM   #6
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no i did not go wot.but i can tell its 1000rpm less with that size.and i think i can go to a bigger one :shock: .i hit 4000rpm say 10mins @ 35mph.
out of the hole better to. :wink:
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