Turbo on a 2.5?
06-22-2006, 01:09 PM
#92
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Join Date: Apr 2003
Location: Dillsburg, PA
Posts: 125
Car Info: 2005 Legacy GT Ltd, 2001 Outback LL Bean
HA!
My exhaust is what's upsetting me, lately. Tried to go the custom route to save money, which it didn't. But I seriously don't want to clutter up this thread TOO much. You can PM me if you want to hear about that clusterf&$%.
07-24-2006, 01:05 AM
#93
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Location: Fremont, CA
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Car Info: 1997 Impreza, 2014 BRZ
Hey BAN SUVS.
You seem pretty knowledgable about turbos on the NA stuff. I have a 97 Impreza L with a 2.2l engine. I am thinking about a turbo kit on it. I am currently doing some research. Maybe you can enlighten me.
I guess here are a few questions to start me off:
1. Which kit would you recommend?
2. What are the pro's and con's of turboing an EJ22, opposed to an EJ18 or EJ25?
3. I am a total noob, but I thought I should probably ask this anyways. Do I absolutely need a hood scoop in order to effective use a tmic with a turbo kit on an Impreza L?
Thanks.
You seem pretty knowledgable about turbos on the NA stuff. I have a 97 Impreza L with a 2.2l engine. I am thinking about a turbo kit on it. I am currently doing some research. Maybe you can enlighten me.
I guess here are a few questions to start me off:
1. Which kit would you recommend?
2. What are the pro's and con's of turboing an EJ22, opposed to an EJ18 or EJ25?
3. I am a total noob, but I thought I should probably ask this anyways. Do I absolutely need a hood scoop in order to effective use a tmic with a turbo kit on an Impreza L?
Thanks.
07-24-2006, 08:13 AM
#94
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Talk to RalliTek about a kit. They will probably ecommend an AVO kit I think, and they have a piggyback EM solution that works alraight. Turboing the EJ22 is the same as an EJ18 or EJ25 basically, you just get a different power band. You will definitely need a hood with a scoop, or your intercooler becomes an interheater. 
10-04-2006, 02:25 PM
#96
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Join Date: Oct 2004
Location: Monticello MN
Posts: 271
Car Info: 1996 impreza 60 trim, 8psi 201 whp, 213 tq 200k mi
I just turboed my n/a 2.2 liter...actually its been turbod for 2 months now...constantly beating on it, 7.5 psi. NO managment, top mount intercooler, legacy turbo vf11, custom up pipe from borla headers, ran a 14.8 on my g-tech @ 93 mph...pretty good considering n/a i ran 16.3 constistantly at the strip
10-06-2006, 03:06 AM
#97
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Join Date: Jan 2005
Location: Vancouver, B.C., Canada
Posts: 11
Car Info: 2001 Subaru Impreza 2.5RS
I'm runnin an ej251 (MY01 CDN 2.5RS)
couple questions:
1) been seriously considering the avo kit because of the 'ease of installation' (as it comes with..'everything I need') and it seems reputable. however numbers seem a bit lower than I expected (posted 212whp, possible 265). now I really don't know much about turbos, but would it be possible (in the future) to simply replace the 'garrett water-cooled' turbo with a different one?
2) I know there are other kits out there, but are they tried, tested and true? even better than the avo kit?
couple questions:
1) been seriously considering the avo kit because of the 'ease of installation' (as it comes with..'everything I need') and it seems reputable. however numbers seem a bit lower than I expected (posted 212whp, possible 265). now I really don't know much about turbos, but would it be possible (in the future) to simply replace the 'garrett water-cooled' turbo with a different one?
2) I know there are other kits out there, but are they tried, tested and true? even better than the avo kit?
10-06-2006, 11:12 AM
#98
Chicks dig me. April Fool's!
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Car Info: 1997 Impreza, 2014 BRZ
Hey. 212 wheel horse power is a little different than the horse power at the crank. The WRX make something like 225-230 at the crank. I am not any type of expert. I think that a stock WRX makes 190 hp at the wheels or something. I am not quite sure. BAN SUVS is a little better with these things. Anyways... yeah...
I would just say do a swap. You are going to pay about $4000 US for a turbo kit, you might as well do a swap. I guess it really depends on who does it. I've heard a lot about this and people say that by turbocharging your NA, you run the risk of blowing your engine. I've heard that if you stay below 6-8 psi of boost, you should be okay. It varies.
I would just say do a swap. You are going to pay about $4000 US for a turbo kit, you might as well do a swap. I guess it really depends on who does it. I've heard a lot about this and people say that by turbocharging your NA, you run the risk of blowing your engine. I've heard that if you stay below 6-8 psi of boost, you should be okay. It varies.
10-06-2006, 11:15 AM
#99
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The AVO kit works, and it makes the car faster than stock... but a proper EJ20/EJ257 swap will always be faster and more reliable, and hav ea higher performance ceiling. The downside is that it's more expensive.
10-06-2006, 02:40 PM
#100
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Location: Vancouver, B.C., Canada
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Car Info: 2001 Subaru Impreza 2.5RS
forgot to mention: my car's AT. 
correct me if I'm wrong, but the ej257 is the new wrx sti engine, right?
are there other things to consider for the swap like ecu? tranny? (like I mentioned, I'm no expert at this).
correct me if I'm wrong, but the ej257 is the new wrx sti engine, right?
are there other things to consider for the swap like ecu? tranny? (like I mentioned, I'm no expert at this).
10-06-2006, 02:50 PM
#101
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The transmission doesn't affect putting a turbo kit on. It does complicate getting a swap though, since your stock ECU is needed for the transmission to work properly. If you did a complete swap, you would need a manual transmission with it, but you could turbo your car with the 4EAT still in it.
10-07-2006, 01:30 PM
#102
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Location: Indy
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Car Info: '06 Impreza 2.5i
From my understanding properly done EJ257 swap comes with the factory computer for that type of engine (thats my understanding atleast)
And yes, the EJ257 is the one the STI's have been using. while the EJ253 is whats in the NA line (2.5 rs and 2.5 i) and i believe the 06 WRX
And yes, the EJ257 is the one the STI's have been using. while the EJ253 is whats in the NA line (2.5 rs and 2.5 i) and i believe the 06 WRX
10-07-2006, 08:41 PM
#103
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EJ25D is the Phase 1 2.5, and EJ251 is the Phase 2. EJ253 is the 2.5i motor. EJ257 is the STi shortblock, and I'm not sure what the '06+ non-STi block is, but I know it's different.
Last edited by Kevin M; 10-09-2006 at 10:50 AM.
10-08-2006, 01:59 AM
#104
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Join Date: Jan 2005
Location: Vancouver, B.C., Canada
Posts: 11
Car Info: 2001 Subaru Impreza 2.5RS
now I'm leanin towards putting small n/a mods and save up for the ej257 ftw.
hmm..right now, would a '06 sti exhaust do anything for me? at least free up flow?
hmm..right now, would a '06 sti exhaust do anything for me? at least free up flow?