jono Posted January 6, 2018 Share Posted January 6, 2018 forgetting any electrical switches or sensors and the like, will all EJ intake manifolds through whole range of models, sizes and years physically bolt up to any other EJ? Was there one that had a smaller swept volume? Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted January 6, 2018 Share Posted January 6, 2018 No Quote Link to comment Share on other sites More sharing options...
dfoyl Posted January 6, 2018 Share Posted January 6, 2018 As far as I know (and GD will likely prove me wrong ), all phase 1's should interchange. And all phase 2's should interchange. You can put a phase 2 heads & intake on a phase 1 block, and vice-versa. And you can run a phase 2 with phase 1 ECU (I am doing so, I have a early 98 (EJ20J) Forester ECU running a 92 EJ205 Frankenmotor). Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted January 6, 2018 Share Posted January 6, 2018 Phase 1 includes the dual cam engines like the EJ25D and they do NOT share intake patterns. Phase 2 is entirely different, turbo's are different, and besides that due to entirely different idle control systems you can't interchange any of the manifolds easily between phases anyway as the manifold must match the heads but also the ECU's preferred idle control design. GD Quote Link to comment Share on other sites More sharing options...
idosubaru Posted January 6, 2018 Share Posted January 6, 2018 No Quote Link to comment Share on other sites More sharing options...
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