Turbo charging my RE2500?

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  • MGaz
    S2Forum Maniac
    • Feb 2008
    • 698
    • Home: United Kingdom Current: Wales

    #16
    Originally posted by Puglife
    Forged stroker crank! Should have said repo, sold my RE2500 engine start of the year for £300.....

    out of interest, who bought it? :mischeif:

    Are they keeping it as it is? or braking it for the chrome molly stroker crank?
    C4 A6 AEL avant quattro: daily

    TYPE-85 Coupe Quattro: clicky
    2.5L GTi engineering RE2500 190hp.180lb
    Schrick 272 cam
    C A C 2.5" T304 Exhaust
    ITG filter

    Comment

    • MGaz
      S2Forum Maniac
      • Feb 2008
      • 698
      • Home: United Kingdom Current: Wales

      #17
      Originally posted by GazzaG60
      its high compression so no.

      power is all about flow. the design of the head is not great. mounting the turbo and inlet on the same size has manifold and turbo implications.

      ower delivery also suffers. 2v tends to generate on/off switch cars. combustion chamber design doesn't help with detonation.

      id expect a mildly tuned 16v engines to be as good as the 2.5 RE engine for performance.
      could I fit a 20v head to the engine? retaining the 2.5 stroke and my forged pistons?
      C4 A6 AEL avant quattro: daily

      TYPE-85 Coupe Quattro: clicky
      2.5L GTi engineering RE2500 190hp.180lb
      Schrick 272 cam
      C A C 2.5" T304 Exhaust
      ITG filter

      Comment

      • goodall
        S2Forum Maniac
        • Jul 2008
        • 810
        • Country: Northern Ireland

        #18
        Originally posted by MGaz
        could I fit a 20v head to the engine? retaining the 2.5 stroke and my forged pistons?
        yes, its done on motorgeek few times 10v bottom end and 7a head gets compression down for turboing. works because the 10v has dished pistons, you might need check for clearance on your setup make sure pistons and valves dont clash, but no reason why should.
        you would also need either weld the head or block however block of part the oil return like on doing a diesel stroker, no big hassle

        Comment

        • MGaz
          S2Forum Maniac
          • Feb 2008
          • 698
          • Home: United Kingdom Current: Wales

          #19
          Originally posted by goodall
          yes, its done on motorgeek few times 10v bottom end and 7a head gets compression down for turboing. works because the 10v has dished pistons, you might need check for clearance on your setup make sure pistons and valves dont clash, but no reason why should.
          you would also need either weld the head or block however block of part the oil return like on doing a diesel stroker, no big hassle
          my engine is also bored out slightly so that the 2.5L isn't created entirely with a long stroke.

          Would it still be suitable?

          Also, once the 7A head was fitted, would 20vt parts just bolt strait on? IM, EM, ECU, coilpacks etc?

          or would I need expensive custom 7A turbo parts?
          C4 A6 AEL avant quattro: daily

          TYPE-85 Coupe Quattro: clicky
          2.5L GTi engineering RE2500 190hp.180lb
          Schrick 272 cam
          C A C 2.5" T304 Exhaust
          ITG filter

          Comment

          • GazzaG60
            S2Forum Freak
            • Mar 2007
            • 4133
            • Country: United Kingdom

            #20
            the pistons will work but ideally need swapping for proper ones.

            also need to check things like how the ndizzy works and if there is an intermediate shaft. im not up on the 2.5 5.

            id just sell it and get a full I5 T

            Comment

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