Re: Supercharging BMW E90 N46B20 320i 4cyl
as secondary injector only comes on under boost, the mass air airflow in the runners is also supersonic, you can place the injector anywhere along the runner. I belive the plastic used for the manifold is made of hard plactic, drill and tap and could be a solution.
Dod the E90 engine at some point used a cast metal manifold? Worth looking through history.
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Richard L
aquamist technical support
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