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7a block stroker

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  • 7a block stroker

    I’m thinking of building stroker short block from a spare 7a block I have in garage. I’m using 95.5mm crank also it’s going to be turbo not n/a power would like people who have done this what rod to pistons you went for

  • #2
    FCP engineering has a set they can order for you.
    I plan to do the same but with smaller pistons

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    • #3
      I’ve asked fcp already but not had a answer on rod length to use

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      • #4
        I don't think FCP make a piston for this combination of parts, I think you're going to need a 144mm rod with a custom piston.
        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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        • #5
          I was told that is need 144mm with custom pistons they have the spec for. Difference is the piston size which they can order as well

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          • #6
            Originally posted by AndyP View Post
            I don't think FCP make a piston for this combination of parts, I think you're going to need a 144mm rod with a custom piston.
            Hi Andy fcp said they use 144mm rod with a custom je piston they get

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            • #7
              Originally posted by A80Avant View Post
              I was told that is need 144mm with custom pistons they have the spec for. Difference is the piston size which they can order as well
              Yes same here

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              • #8
                Jonus has a kit for the 220mm short block.
                Panthero Coupé quattro 20vt
                Indigo ABY coupé
                Imola B6 S4 Avant

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                • #9
                  I have requested a set of pistons that has the 4032 T6 alloy that expands less. I don't like oil consumption. Hopefully they can make one

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                  • #10
                    Originally posted by Error404 View Post
                    Jonus has a kit for the 220mm short block.
                    Yes he does I’m hopeing to get to look at a set very soon thanks Alex

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                    • #11
                      Originally posted by A80Avant View Post
                      I have requested a set of pistons that has the 4032 T6 alloy that expands less. I don't like oil consumption. Hopefully they can make one
                      Are they je pistons?

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                      • #12
                        Yes JE can make that alloy too

                        Sent from my SM-P550 using Tapatalk

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                        • #13
                          I have unicorn crank for that kind of setup, 92.8mm
                          Then u can use 144mm rod and cheap supra or tfsi piston, also positive ise u have less stress on engine, better piston speed and rod/stroke ratio.
                          Crank is original, have whole abt c5 coupe engine

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                          • #14
                            What's the best comp ratio to go for , for such an engine. Boost no.more than 2bar

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                            • #15
                              Originally posted by A80Avant View Post
                              What's the best comp ratio to go for , for such an engine. Boost no.more than 2bar
                              The pistons I’ve been told to use are 8.5 comp

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