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Originally posted by onyd
If you would like to go draw through you can better use an SU or Mikuni. Beware you need a special seal on the compressor side or it will be eating oil like crazy!!!!
I did once made a special setup and it was working as long as the turbo and intake was very short. An SU carb does not need the throttle plate to control any progression holes. It only control air. So you can put it wherever you want. I placed a valve between the turbo and the intake (like blow through) and the SU carburetor on the intake of the turbo (with no throttle plate). I did it before with an IMPCO gas mixer. Works the same. The SU supplies fuel in the same manner. It works very well but no intercooler possible (but not needed) and you need short intake lines (and small in diameter). No need for a special Seal on the turbo. Freezing can be a problem.
An other easy option is using the renault GT5 turbo carb. Can be fitted on a standard single carb manifold. I'm currently working on a 34 ICH carburetor for turbo charging. 2 will be used on a Flat VW T4 engine. As soon as this carb is ready it can be used as an alternative for the Renault GT5 turbo carb. But it will not stand as much pressure as the Renault carb. Only 600 - 800 mbar.
I did once made a special setup and it was working as long as the turbo and intake was very short. An SU carb does not need the throttle plate to control any progression holes. It only control air. So you can put it wherever you want. I placed a valve between the turbo and the intake (like blow through) and the SU carburetor on the intake of the turbo (with no throttle plate). I did it before with an IMPCO gas mixer. Works the same. The SU supplies fuel in the same manner. It works very well but no intercooler possible (but not needed) and you need short intake lines (and small in diameter). No need for a special Seal on the turbo. Freezing can be a problem.
An other easy option is using the renault GT5 turbo carb. Can be fitted on a standard single carb manifold. I'm currently working on a 34 ICH carburetor for turbo charging. 2 will be used on a Flat VW T4 engine. As soon as this carb is ready it can be used as an alternative for the Renault GT5 turbo carb. But it will not stand as much pressure as the Renault carb. Only 600 - 800 mbar.