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L67 Fuel & ECU questions

Discussion in 'V6 Development And Modification' started by Scrubzee, Jun 27, 2018.

  1. Scrubzee

    Scrubzee New Member

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    Hi guys,

    I have purchased a l67 to fit into my vu and was wondering what aftermarket fuel pump people are running for them and also would it be worth running an aftermarket ecu or will the stock vu ecu be fine with a tune

    Iā€™m planning on performing the following mods
    Stage 2 cam from MACE
    Water to air intercooler
    3.2ā€ 12psi pulley
    Comp style pacemaker headers with custom split 2ā€™5 exhaust with x pipe
    Possibly bigger injectors???
    Upgrade to ls1 fuel lines from tank
    Cold air intake

    Any further suggestions and advice will be greatly appreciated
     
  2. _R_J_K_

    _R_J_K_ Well-Known Member

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    You should be able to put an L67 memcal in and be fine. Generally there aren't any aftermarket ECUs that support the 4L60e (if yours is auto) bar for a few piggy backs.

    LS1 fuel lines are a waste of time. I don't believe they're any different, and even if they were you wouldn't max them out. Fuel pump on the other hand is different for a Super 6, so you do need to replace that.

    Cam and bigger injectors need a tune. Tune is advisable to get the most out of that pulley (generally people don't go above 10 untuned). What specs are the cam? ("Stage 2" doesn't mean anything)
     
  3. Scrubzee

    Scrubzee New Member

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    I will be running it behind the 5 speed getrag.

    This is the camshaft specs. Using the stage 2 cam.

    Any advice on what fuel pump to use
     

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