Can it be tuned?

Discussion in 'Engine Performance + Maintenance' started by MotoDude, Mar 1, 2021.

  1. PlayingWithTBI

    PlayingWithTBI Desert Old Guy

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    ^^^X2 - I can get better results with EGR delete and adding HLC (Hyway Lean Cruise) which adds more SA and leans out AFR to ~16.7 with no KCs.
    I also replaced my old 2-way cat with a newer 3-way that does reduce NOx.:33:
     
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  2. RDF1

    RDF1 I'm Awesome

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    You will need to add more timing when you go into "lean cruise" Atleast on a LS you need to for it to make any difference.
    I use to run 93 octane in a Cam/Turbo LQ4 and ran it in the high 16s/low17 AFR and 43-44* timing for cruising at 2000 rpms. Without adding the timing it didn't help anything.
     
  3. Supercharged111

    Supercharged111 I'm Awesome

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    You need to do it on any motor, the lean mixture burns more slowly.
     
  4. PlayingWithTBI

    PlayingWithTBI Desert Old Guy

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    Yes I'm running my SA (Spark Advance) somewhere around 42*+. I just didn't mention how much above.
     
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