Aluxes Posted September 1, 2015 Share Posted September 1, 2015 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. Quote Link to comment Share on other sites More sharing options...
idosubaru Posted September 1, 2015 Share Posted September 1, 2015 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? Quote Link to comment Share on other sites More sharing options...
idosubaru Posted September 1, 2015 Share Posted September 1, 2015 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. Quote Link to comment Share on other sites More sharing options...
Aluxes Posted September 2, 2015 Author Share Posted September 2, 2015 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? Quote Link to comment Share on other sites More sharing options...
ccrinc Posted September 2, 2015 Share Posted September 2, 2015 Well, WHICH engine do you have? It's stamped right on top of the block! It will either say EJ18 or EJ22. Emily Quote Link to comment Share on other sites More sharing options...
Aluxes Posted September 2, 2015 Author Share Posted September 2, 2015 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. Quote Link to comment Share on other sites More sharing options...
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