Fuel Flow of stock Quadrajet?

Discussion in 'Street/strip 400/430/455' started by 69RivieraGS, Jul 20, 2004.

  1. 69RivieraGS

    69RivieraGS Well-Known Member

    Does anyone know how much fuel a stock quadrajet can provide in lbs/hr? Say the carb was the bottle neck of the fuel system. This would be a 69 430 carb(~750cfm?). I'm just trying to get a rough comparison to some fuel injectors I have to see if they'd be enough if I ever went EFI with my BBB.
    Thanks.
     
  2. 69RivieraGS

    69RivieraGS Well-Known Member

    Ok, well I went through some thermodynamic type calculations and came up with a 430 running at 5500rpm and air temp at 60F and a pressure of 14.7 psia, I get 213.18 lbs/hr of fuel. That sounds about right, doesn't it?
     
  3. 87GN_70GS

    87GN_70GS Well-Known Member

    Fuel flow required is roughly: gph = hp / 12
     

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