BrokenSubaru Posted July 3, 2012 Share Posted July 3, 2012 I havn't yet figured out the Subaru acronyms, so I'll ask a rookie question. I get the engine designation 2.2 and 2.5, but need help on other designations, can someone point me to a page? Quote Link to comment Share on other sites More sharing options...
Durania Posted July 3, 2012 Share Posted July 3, 2012 Here ya go: http://en.wikipedia.org/wiki/List_of_Subaru_engines#Four_Cylinder Quote Link to comment Share on other sites More sharing options...
idosubaru Posted July 3, 2012 Share Posted July 3, 2012 a quick and no doubt limited run down: EA engines are old school Subarus: XT, GL's, Loyale's, RX, Brats, all the old school Subaru's. 70's - early 90's stuff. EJ engines are found in Impreza, Legacy, Forester, Baja. from 1990 - roughly current. ER27 and EG33 are one model engines for the XT6 and SVX. The ER27 is very similar to EA engines - same pistons, valves, etc, just two more cylinders. the numbers following the letters are the size of the motor. EJ22 is a 2.2 liter, etc. EZ are the 6 cylinder motors used in 2001+ Subaru Outbacks and Tribecas. Quote Link to comment Share on other sites More sharing options...
Ricearu Posted July 3, 2012 Share Posted July 3, 2012 also, EA EA-71 1.6l OHV EA-81 1.8l OHV EA-82 1.8l SOHC (cams on top of heads) FBXX NEW engines with XX being engine code(new impreza, forester, BRZ etc.) On the older stuff, a "T" added to the end is turbo Quote Link to comment Share on other sites More sharing options...
kona Posted July 4, 2012 Share Posted July 4, 2012 A sticky with acronyms common to this board would be really good for new readers. There are many, some subaru specific, some not. For example: NA= naturally aspirated (as in not turbocharged) 5MT = five speed manual transmission 4EAT = four speed automatic transmission SPFI = single point fuel injection MPFI = multi point fuel injection SOHC =single overhead cam DOHC = dual overhead cam Some I remain confused about: EJ25D - first edition EJ25 with DOHC? EJ251 - first edition EJ25 with SOHC? EJ252 - second edition EJ25 with SOHC? EJ253 - third edition EJ25 with SOHC? Quote Link to comment Share on other sites More sharing options...
Ricearu Posted July 5, 2012 Share Posted July 5, 2012 ej25d - phase 1 2.5 DOHC ej251 - phase 2 2.5 sohc 1999 EJ25D DOHC shares a EJ251 bottom end, with 52mm rod journals, and are not "prone" to bottom end failure. Quote Link to comment Share on other sites More sharing options...
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