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Old 01-03-2009, 04:11 PM   #1
cmiovino
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Default EJ22 Differences

There were basically three types of EJ22s available from '95-01 (talking just NA Imprezas, not really NA/FI Legacys)

'95-96 models
135 hp hp @ 5600rpm?
140 torque @ 4400rpm

'97-98 models
137 hp @ 5400 rpm
145 torque @ 4000rpm

'99-01 models
Horsepower: 142 @ 5600 rpm
Torque: 149 @ 3600 rpm

I drove a '95 LX for some time... then test drove a '99 and it had a good amount more of 'punch' to say the least even though it was the same engine. I'm assuming this was mainly due to when peak torque kicked in... and since it had a bit more too.

Anyone have some input after driving the versions of the engine after some time? (IE, you drove a '95 and jumped to a '01 or something)
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Old 01-03-2009, 05:13 PM   #2
gavinl
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the increase in HP and Torque are due to increase compression ratios, with that the 97> EJ22s became interference type too.
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Old 01-03-2009, 08:50 PM   #3
96GreenLX
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There are even more differences than just horsepower and torque. Older EJ22s had dual port exhaust up to 95 where some say some 95s had dual while others had the single port. Then there is the change in 97 that made EJ22s interference engines with little horsepower gains but they where made to get better gas mileage. 96 seems to be an odd year as some searching around these forums led me to believe that if your EJ22 has the single port exhaust your engine is interference. However mine is a 96 single port and my timing got thrown off, then while changing that belt my cam sprocket moved a quarter turn on me and when I got the belt on with correct timing the car ran smoothly no noise and a lot more quite then before plus it felt like it gained horsepower. Anyway I'm sure some of this could be wrong but I'm just about positive EJ22s 97 and on are interference and 96 and below regardless of single port or dual port are non-interference.
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Old 01-04-2009, 01:59 PM   #4
FuJi K
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'99-'01 Are phase2. They have a larger intake manifold by a tiny bit, also the heads have redesigned intake exhaust ports that flow more than the phase1. The Valves are also bigger on the phase 2 heads. This all helps in making power. With simple bolt-ons you can get power of the 2.5L SOHC easily.
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Old 01-04-2009, 02:15 PM   #5
mark7901
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what are the difference in exhausts for these models? I have a 95 2.2l and need to replace the mid pipe and muffler. Do any of the RS exhausts fit? (like 98 or 99?) Just looking for a cheaper alternative than OEM, thanks.
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Old 01-04-2009, 02:41 PM   #6
FuJi K
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Quote:
Originally Posted by mark7901 View Post
what are the difference in exhausts for these models? I have a 95 2.2l and need to replace the mid pipe and muffler. Do any of the RS exhausts fit? (like 98 or 99?) Just looking for a cheaper alternative than OEM, thanks.
You can certainly go for a free-er flowing aftermarket muffler. I would do that if it was me. Have a catback made with a resonator in the middle. 2.25" If you are daily. 2.5" IF you want power output.

I would not go back to OEM again for power performance. However if wanting quietness it is the one to go back to. Yes the 2.5RS catback bolts up
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Old 01-04-2009, 04:08 PM   #7
rallifan
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I have a 01 TS and I have teseted an 99 L Forrester with a 2.2 and I was very disappointed(as this was my first time driving a Subaru) that did not stop me to buy a Subie. When I test drove my Impreza it was like night/ day. My Impreza was much more powerful than the Forester. It has it's issues(can't hang on the gears like the Honda's, not a huge fan of cold wheather starts/closed looped running/needs a 6th gear/ ect). You don't think of those things when other drivers are stuggling in the snow/ice and rain as you all have noticed. My EJ2.2 is a phase 2 motor the 2.5 does have a lot of different stuff(mostly sensor set up stuff) but pulley kits, ground kits , air induction kits ect and usually bolt on..any who I love the car I just want it to handle better(oversteer issues)
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Old 01-04-2009, 11:15 PM   #8
FuJi K
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If I remember correctly the USDM Foester never came with a 2.2L. I came with a 2.5L DOHC NA to start out with, followed by the turbo 2.5L in '04+.
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