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VE of a 3.5L LX9 engine

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  • VE of a 3.5L LX9 engine

    Can anyone tell me the Volumemetric efficiency of the LX9 engine at 3000,4000,5000 and 6000 rpm. ( ratio's are fine, a graph would be even better)

    I have the A/F ratio correct at 3000-4000 rpm but it goes rich down to 11:1 near 5500 rpm and higher.

    I'm trying to dial in a Haltech ECU while on the race track with a wide band Oxy sensor so I'm looking for a a correction factor to help get the table close before I go out again.

    thanks

  • #2
    With the stock cam it pretty much runs out of power around 5500
    '89 Firebird, 3500 Turbo, T56, 9-bolt/4.11
    '86 Fiero, 3500, 4-speed

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