140ax

  1. Yellow_rag

    Whipple is down on boost

    hey, I have a 2.3L whipple on my 03 Cobra and the boost will not build past about 15 lbs. I can feel it's down on power too. I'm getting same boost readings from the analog dash gauge and my AeroForce OBD gauge. I have a 3.1in pulley which should be about 18 lbs. The boost dump actuator is...

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