Q for people running custom pistons..

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  • mcandmar
    S2Forum Zealot
    • Apr 2004
    • 5118
    • Country: Ireland

    #1

    Q for people running custom pistons..

    Bore clearance, has anybody noticed any side effects with the likes of JE pistons having a greater piston to bore clearance, any piston slap noises on cold starts, oil blow by etc?

    Is anybody running them in a daily driver or just a weekend toy? Looking for some experience for pros and cons as i plan to buy a set this month.

    Thanks,

    Mark.
    91CQ20v - Gone to a new home
    93UR-S4 - The Magic Carpet
    94S2Bus - The Emerald Express
  • mcandmar
    S2Forum Zealot
    • Apr 2004
    • 5118
    • Country: Ireland

    #2
    Pistons ordered woohoo :mischeif:
    91CQ20v - Gone to a new home
    93UR-S4 - The Magic Carpet
    94S2Bus - The Emerald Express

    Comment

    • Jeffer
      S2Forum Fiend
      • Jul 2003
      • 2057
      • Country: Netherlands

      #3
      no slap here. Blowby is substantial on the hipowered il5's. A good breather setup will sort this.
      RS2 Black - stock 315 HP
      RS2 RS blau - stock 315 HP
      Sport Quattro - 1005 HP
      High Octane website

      Comment

      • QuattroFever
        S2Forum Extremist
        • May 2006
        • 1360
        • Country: United Kingdom

        #4
        I plan on buying a set of pistons myself too at the end of august.
        What pistons did you go for, JE Forged?
        What compression ratio?
        Did you get rebore? :mischeif:
        Volcano ABY coupe

        Ant

        Comment

        • mcandmar
          S2Forum Zealot
          • Apr 2004
          • 5118
          • Country: Ireland

          #5
          Went for the JE's in the end as a lot of forum members are using them without issues. I had to rebore so mine were .5mm oversize, stock CR, and slightly recessed valve pockets for safety.
          91CQ20v - Gone to a new home
          93UR-S4 - The Magic Carpet
          94S2Bus - The Emerald Express

          Comment

          • QuattroFever
            S2Forum Extremist
            • May 2006
            • 1360
            • Country: United Kingdom

            #6
            How much did they set you back?

            were they an off the shelf part or custom made?

            I'm guessing custom because of the valve pocket recessing?
            Volcano ABY coupe

            Ant

            Comment

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