air fuel adjustments

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  • xanmanz31
    xanmanz31
    Senior Member
    • 218
    #16
    yeah not that dumb sorry
  • michaelp
    michaelp
    Senior Member
    • 9384
    #17
    Originally posted by Filipe
    D'oh shit.



    I want to learn something here…NA internals create for higher compression, right? Is that why you want to run lower boost? (as the compression is already higher than a turbo motor, therefore, needs less boost?)

    Thanks.
    Pretty much the idea. Higher compression ratio = higher cylinder pressures…which in turn means more power with the same amount of boost - but it also means you can't push it as far.
    - VG30DET (HE341) 86 300ZX - 1982 280ZX Turbo - Headered NA 1986 300ZX 2+2 - 2000 Xterra -
  • michaelp
    michaelp
    Senior Member
    • 9384
    #18
    Originally posted by BLOZ UP
    I'll send you a $1 with pp if you up the boost and destroy the rest of the engine, recording it all on video. With your phone sideways though, none of this vertical video crap.
    I'd totally do that…for free…if I had the opportunity. haha
    - VG30DET (HE341) 86 300ZX - 1982 280ZX Turbo - Headered NA 1986 300ZX 2+2 - 2000 Xterra -
  • xanmanz31
    xanmanz31
    Senior Member
    • 218
    #19
    oh you guys.... you almost had me there


    as fun as it sounds the whole 11 dollars id get for buying a go pro to record and the unknown dollar amount of damage id do to my car just doesn't seem to add up.
  • BLOZ UP
    BLOZ UP
    Senior Member
    • 2971
    #20
    $12, final offffer. man, 2 beerss.
    BLOZ UP.com
    It is not recommended to confirm proper installation by driving into walls or other barriers as this could cause personal injury or damage to the vehicle.
  • xanmanz31
    xanmanz31
    Senior Member
    • 218
    #21
    damn tempting but contrary to popular belief i cannot be bought off that cheaply
  • xanmanz31
    xanmanz31
    Senior Member
    • 218
    #22
    so just did my compression test and heres my #s
    #2 - 170 psi
    #4 - 180 psi
    #6 - 180 psi
    #1 - 185 psi
    #3 - 180 psi
    #5 - 180 psi

    all plugs removed and plenum removed for test

    what would cause a quiet knock / loud tick and compression not be effected?
  • michaelp
    michaelp
    Senior Member
    • 9384
    #23
    Originally posted by xanmanz31
    so just did my compression test and heres my #s
    #2 - 170 psi
    #4 - 180 psi
    #6 - 180 psi
    #1 - 185 psi
    #3 - 180 psi
    #5 - 180 psi

    all plugs removed and plenum removed for test

    what would cause a quiet knock / loud tick and compression not be effected?
    Detonation…lol
    - VG30DET (HE341) 86 300ZX - 1982 280ZX Turbo - Headered NA 1986 300ZX 2+2 - 2000 Xterra -
  • xanmanz31
    xanmanz31
    Senior Member
    • 218
    #24
    elaborate

    plugs #6, #3, and #1 were pretty black from carbon build up all the others look normal.
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