oil pump question

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  • surgeoh
    Noobie
    • Feb 2015
    • 27

    #1

    oil pump question

    Does anyone know the actual difference between the Evo oil pump vs stock?
    I know the Evo is better. But how?
    More volume? how does it achieve this? Larger impeller? More vanes?
    more pressure? At idle or across the board?
    Smaller sprocket?
    I'm curious of the hard facts.
    If someone has an old, bad Evo pump, I would be glad to disect it to hopfully find answers.
  • BlackbirdM3
    R3VLimited
    • Jan 2012
    • 2764

    #2
    There is a thread on S14s.net about this. http://s14net.vbulletin.net/forum/s1...-dtm-oil-pumps

    Will
    '59 Alfa Romeo 101.02 Giulietta Sprint
    '69 Alfa Romeo 105.51 1750 GTV (R.I.P)
    '69 Datsun 2000 roadster Vintage race car
    '88 BMW M3

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    • surgeoh
      Noobie
      • Feb 2015
      • 27

      #3
      Awesome! Thanks.
      I tried looking a while ago but the site was down.

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