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Old 04-10-2008, 09:30 PM   #1
slaytalera
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Default 97 outback 2.5L...power adders?

hey guys, my legacy outback has the 2.5L block and i was wondering what i can do to add some much needed power....im sick of being out accelerated by toyota prius'. is it the same 2.5L as the sti?
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Old 04-10-2008, 11:08 PM   #2
firstshadow
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It's got the same engine volume as an STi... but same engine, no. The internals are very different.
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Old 04-11-2008, 12:08 PM   #3
LTracer
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Quote:
Originally Posted by firstshadow View Post
It's got the same engine volume as an STi... but same engine, no. The internals are very different.
^1+ and a turbo. Options for you: swap, turbo your current motor (should just swap if you plan on doing this), or do bolt on mods such as intake, exhaust, and internals like cams, heads. Search... lots out there on all of these options.
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Old 04-11-2008, 04:25 PM   #4
96SubyImpreza
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If you wanted to stay N/A I would say first throw on a bigger exhaust and a short ram or cold air intake... A lightweight crank pulley would give you some faster revs, freeing up some lost power...

Delta cams?? You could always send out for regrinds.

OR if you really wanted to get crazy, raise your compression a bit.
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Old 04-11-2008, 05:48 PM   #5
PA-Outback2000
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agree with 96subyimpreza. make it a full exhaust- borla header, random tech cat, stromung or other catback. with intake, pulley and full exhausr, u should be in the 190HP area at the engine. raising compression is way too involved. i would do a turbo conversion or swap before i would do that.

Last edited by PA-Outback2000; 04-14-2008 at 04:56 AM.
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Old 04-12-2008, 02:11 AM   #6
ballitch
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Exhaust, intake, pulleys. Not necessarily in that order, but you get the idea. Is your car an auto? Most likely it is, so a light weight crank pulley is a good option for you. Cams are a little "in depth" on a dohc suby motor, if you havent done them before. So you should probably wait to install cams in your car.

Do a little searching, you will find out alot of things you can do that arent too expensive.

~Josh~
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Old 04-12-2008, 02:10 PM   #7
Chi_San
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If your Outback is getting it's ass handed to it by a Prius, then there's something wrong with your car. Do a tune-up. Then think about upping the power.

Also, if it's an automatic, you might not have any luck beating a Prius, mods or no.
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Old 04-13-2008, 09:15 PM   #8
slaytalera
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alright thanks guys, btw yes it is an auto() im probably gonna take it in for a tune up next weekend and take it from there.
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Old 04-13-2008, 11:53 PM   #9
96SubyImpreza
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You can do what I am going to attempt in a few weeks. Auto manual swap!!!!!!! AHAHAHA I must be crazy
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Old 04-14-2008, 04:21 AM   #10
rivman05
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Hi, I wouldn't be out just bc u have an auto. The 2.2. in my imp wgn is just fine with its 4eat and its got 164k on it, and hauls...I have done nothing to it besides a cai, and a Pro ecm. Planning on a techworks header, stromung cat back, and a high flow cat, ported and polished heads, bigger valves, have the heads shaved, delta regrinds, port and polish the intake itself, phenolic intake spacers. your legacy should perform fine after gettin a tune up. When you have the tune up done, look on the RO for what was done, plugs, wires, air filter, fuel filter, and oil change. That should help you out.
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Old 04-14-2008, 04:33 AM   #11
rivman05
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one other thing that alotta people dont think about is tranny service?? when was the last time you had it flushed and bands adjusted??? that would make a huge difference in performance.just wanted to add my 2 cents
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