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  • #31
    Pics of exhaust





    And one of the new solid mounts I added so I can hopefully stop breaking trans mounts.

    '89 Firebird, 3500 Turbo, T56, 9-bolt/4.11
    '86 Fiero, 3500, 4-speed

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    • #32
      That's an interesting exhaust setup. I like how you relocated the Y-pipe down by the muffler. Got any pics of the exhaust manifolds?

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      • #33
        They're just 3500 front manifolds. The exhaust was built mostly with leftover pipe and a 2.5" Walker turbo muffler with a 2.5" Walker glasspack as a tip. Total cost about $60 IIRC
        '89 Firebird, 3500 Turbo, T56, 9-bolt/4.11
        '86 Fiero, 3500, 4-speed

        Comment


        • #34
          I did port/polish/paint the exhaust manifolds though.

          '89 Firebird, 3500 Turbo, T56, 9-bolt/4.11
          '86 Fiero, 3500, 4-speed

          Comment


          • #35
            That engine sounds very serious with the cam and turbo...

            Be careful in that little car!
            David Allen - Northport, AL
            1986 Century T-Type, Iron Head 3.1 MPFI Turbo-Intercooled
            1988 Olds Ciara XC, GenII 2.8 MPFI Turbo-Intercooled
            1972 Chevy Nova, 305 Small Block V8 EFI
            1984 Century Olympia, 3.8SFI Turbo, over 400 HP
            http://home.hiwaay.net/~davida1
            http://www.cardomain.com/id/turbokinetic

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            • #36
              What turbo? Lol
              '89 Firebird, 3500 Turbo, T56, 9-bolt/4.11
              '86 Fiero, 3500, 4-speed

              Comment


              • #37
                In the video, the engine makes a whistling / whining noise when you rev it up. I'm not sure what's causing that. But it does sound a little like a turbo spooling up.

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                • #38
                  Well I know there's an exhaust leak somewhere I have to find so that could be it.
                  '89 Firebird, 3500 Turbo, T56, 9-bolt/4.11
                  '86 Fiero, 3500, 4-speed

                  Comment


                  • #39
                    256 whp on the same dyno as last time. So 50whp over stock.


                    '89 Firebird, 3500 Turbo, T56, 9-bolt/4.11
                    '86 Fiero, 3500, 4-speed

                    Comment


                    • #40
                      Nice! Just a stock 3500 with a cam? Or is the top end ported?
                      1999 Olds Alero 2.4 to 3500 swap (running). totaled by a honda
                      1992 lumina 4 door 3500 3spd auto 15.020 @93.5 mph
                      1984 Cavalier type 10 hatch 3100 5spd!!!
                      14.96@91.47 in the 1/4
                      9.63@74.36 in the 1/8th
                      14.30 on slicks! scrapped due to rust!

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                      • #41
                        Top end isn't ported other than some gasket matching of the intakes
                        '89 Firebird, 3500 Turbo, T56, 9-bolt/4.11
                        '86 Fiero, 3500, 4-speed

                        Comment

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