Stroker question on boost ??

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  • ian4455
    S2Forum Maniac
    • Nov 2010
    • 787
    • Country: England

    #1

    Stroker question on boost ??

    say i'm running a Turbo with a No.12 hotside and my engines 2.2 Litre, boost will be very laggy. I rebuild my engine to a stroker approx 2.6 Litre then shouldn't the boost be a lot less laggy with the increased displacement using the same turbo ?
    Last edited by ian4455; 19 February 2012, 21:18.
  • AndyP
    S2Forum Zealot
    • Feb 2004
    • 6049
    • Country: England

    #2
    Yes, JP ran the same turbo on his 2.2 and 2.5 and said it made 750rpm difference in peak boost.
    sigpic
    1991 Audi S2 3B - 2.5 Stroker engine
    1997 A6 2.5TDi quattro avant - C4
    1976 RD250E / 350LC cafe racer

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    • Billman
      S2Forum Freak
      • Nov 2004
      • 4129

      #3
      Yes, approx 300 or max 500 RPM sooner if everything else is the same.

      JP has many things different from piston/rods, balancing, head work, camshafts, turbo (housing/wheels).
      Go Holset or Go RS4

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      • ian4455
        S2Forum Maniac
        • Nov 2010
        • 787
        • Country: England

        #4
        My Project

        Thanks, thought so!

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