1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

carb ?/ running out of fuel

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Old 02-25-03, 11:01 PM
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carb ?/ running out of fuel

every time i get on my 7 it runs out of fuel just into third
gear. i have an inline filter under the hood and the stock filter is new. what gives?
Old 02-25-03, 11:29 PM
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You need a quiet efficient 21st century gerotor style fuel pump like the Mallory Comp140 or Aeromotive....that's what....you need more volume...
Old 02-26-03, 12:52 AM
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U really should check the float level, make sure it's set right. Fuel pressure's next, I think stock system is like 2-4lbs and after market carbs need at least 6lbs. With increased pressure comes more volume. All probs I've had with carb running out of gas is float level being too low.
Old 02-26-03, 02:04 AM
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Please nobody correct this, we already know about volume and pressure...just let it go this time or link something, not more 4 page threads debating the point....
Old 02-26-03, 03:16 AM
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Re: carb ?/ running out of fuel

Originally posted by masterrigger
every time i get on my 7 it runs out of fuel just into third
gear. i have an inline filter under the hood and the stock filter is new. what gives?
I'd get rid of the second filter for starters. Other than that you probably just need a better fuel pump.
Old 02-26-03, 03:19 AM
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Originally posted by mar3
Please nobody correct this, we already know about volume and pressure...just let it go this time or link something, not more 4 page threads debating the point....
It's bound to turn into 4 pages now that you brought it up. Wouldn't it be easier just to say flow decreases as pressure goes up and get it over and done with?
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