comatosellama Posted June 3, 2015 Share Posted June 3, 2015 I'm thinking 25d block, 22e heads, cometic gasket, all with the ej18 intake so I don't have to touch wiring (that stuff scares me ). Doing this for cheap power in my imp. Good or bad idea? Or maybe just throw a 25d block inbetween my heads. I just miss my power from my 2.5gt. Link to comment Share on other sites More sharing options...
ccrinc Posted June 3, 2015 Share Posted June 3, 2015 I'm thinking your intake won't fit. Link to comment Share on other sites More sharing options...
idosubaru Posted June 3, 2015 Share Posted June 3, 2015 sure, go for it. i bolted an EJ22 intake onto EJ18 heads, same bolt pattern, opposite components. Link to comment Share on other sites More sharing options...
comatosellama Posted June 4, 2015 Author Share Posted June 4, 2015 I'm thinking your intake won't fit. I remember GD talking about how 22 and 18 heads were almost the same, is that not true? Or does it change with the phases Link to comment Share on other sites More sharing options...
Fairtax4me Posted June 4, 2015 Share Posted June 4, 2015 Try it, worst case you have to move the harness off of the 18 manifold onto a 22 manifold. No cutting or anything, just unplug, move over, plug in. More powah!! Link to comment Share on other sites More sharing options...
86 Wonder Wedge Posted June 4, 2015 Share Posted June 4, 2015 Why the 1.8 intake? Do you have a 1.8 ECU? Can the injectors handle the 2.5..? Link to comment Share on other sites More sharing options...
comatosellama Posted June 4, 2015 Author Share Posted June 4, 2015 Why the 1.8 intake? Do you have a 1.8 ECU? Can the injectors handle the 2.5..? I was hoping 1.8 intake because I was thinking for a 2.2 I'd have to do splicing or something. It's going into an impreza, so I have the ecu. And I'd imagine if I reset the ecu itself figure itself out Link to comment Share on other sites More sharing options...
86 Wonder Wedge Posted June 10, 2015 Share Posted June 10, 2015 I'd be worried the injectors wouldn't keep up or the ECU would push them to near 100% duty cycle which could cause a burnout of the driver circuit or injectors, long term. Compare the 2.2 or even the 2.5 injectors and see if they'd fit in the 1.8 rails or have the same ohm-spec. If so, I'd swap for the 2.2 at least and see how it runs. Link to comment Share on other sites More sharing options...
johnceggleston Posted June 10, 2015 Share Posted June 10, 2015 Compare the 2.2 or even the 2.5 injectors and see if they'd fit in the 1.8 rails the injectors will fit in the ej18 rails, but i doubt they need to. it will run fine on the ej18 injectors. if the ej18 you now have is obd1, then yes, stick with the ej18 harness. i'm not sure about the intake it self. plus you already have the ej18 intake / harness. an ej22 intake / harness would cost you . an easier , power upgrade, just swap in an ej22 (with egr). simple and easy. not the power of the ej25d, but neither is the frankenmotor. Link to comment Share on other sites More sharing options...
lstevens76 Posted June 10, 2015 Share Posted June 10, 2015 Actually the frankenmotor is supposed to have higher compression and more power than the EJ25D from everything I've read. I'm not sure how using a 1.8l intake on that will affect it though. Link to comment Share on other sites More sharing options...
AdventureSubaru Posted June 10, 2015 Share Posted June 10, 2015 I wouldn't expect the manifold to make a difference. Plug it together and drive. The EJ22 and EJ18 manifolds are nearly the same anyway. Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now