Hi, as per the title I konw the ej207 with big port heads will fit the hatch, but will the engine be compatible with the hatch ecu ? Obviously I will loose the air pump etc and the avcs on the exhaust side ?

Has anyone done this swap before, or can shed any light ?

Thanks

 

Yes it can be done but not on the std OE Hatch ecu, you will need an aftermarket ecu, & wiring changes from your 2.5 3 pin sensors to 2 pin cam sensors, keep the 2.5 inlet etc.

 

also just to be exact none of the newer EJ205/207 motors are CDB but are a Semi-Closed set-up..........

factory CDB motors were only produced approx 1989-1994 - ODB & SCDB blocks can be modified if you know who to ask...........

 

From what I seen you can make a 3 pin cam angle sensor fit with the 207 heads ? Retaining the use of a stock 257 ecu ?

Yes I am aware of this (I have a few block up the workshop), good info for others tho. I have assembled a few engines now and definitely prefer the thick liners on the old sdb. I have ej20 early legacy (1994 irc) cdb to use in this application. Actually you guys rear trust converted it.
I also have a ej257 I could used to retain the 2.5 but would want it cd converted(it will be going to you). I just fancied using the 2.1 with spec c heads in the hatch

Thanks for the info guys