September 1, 201510 yr I have the online manuals for the Impreza and in the specifications section it lists the 2.2 NA engine as having 92mm bore, but the wiki EJ engine page lists it as a 96.9 bore. So what is it exactly? MY engine I have is a 97.
September 1, 201510 yr Impreza's did have 92mm bore in the EJ18 engines? Impreza's get EJ18 and EJ22 engines - what year FSM are you looking at, maybe that's the distinction?
September 1, 201510 yr I've done compression calc's for Ej22's and EJ25's - and 92mm sounds low....i'm used to like 96 and 99 numbers for bore....but that's a vague memory.
September 2, 201510 yr Author Impreza's did have 92mm bore in the EJ18 engines? Impreza's get EJ18 and EJ22 engines - what year FSM are you looking at, maybe that's the distinction? It is the Subaru Impreza 97-98 Manual. It doesnt seem correct. Maybe a misprint?
September 2, 201510 yr Well, WHICH engine do you have? It's stamped right on top of the block! It will either say EJ18 or EJ22. Emily
September 2, 201510 yr Author Well, WHICH engine do you have? It's stamped right on top of the block! It will either say EJ18 or EJ22. Emily As stated in the first post, my engine is a 97 2.2 N/A. I got it figured out though. The manual must be a misprint. Pretty positive the bore is 96.9.
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