fabricated inlet manifold
I've been looking at producing roadster/7 friendly manifolds so that the OE ECU/megasquirt could be used for the EFI Pinto , 2000 DOHC and 1800+2000 Zetec all using the standard hardware such as the OE throttle body , injectors , TPS, MAP ect. It has been suggested that ali casting could be used and produced at a reasonable cost rather than faff around fabricating them. I'm currently looking in to this although with out drawings or a pattern to work from I seem to be getting the brush off.
I know a few on here have made their own inlet manifolds for the zetec using parts of the orignial plastic casting but can any body tell me why they have gone for using ali rather than mild steel or even stainless? I know there will be heat transfer between the head and the inlet but the cast ali and plastic manifolds must suffer from this also? So can any body say if a mild or stainless manifold would make any difference to the performance of the manifold?
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