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97 Outback project

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Old Mar 21, 2005 | 03:43 PM
  #1  
paulpas's Avatar
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From: Chicago, IL
Car Info: 1997 Subaru Legacy Outback
97 Outback project

Timing belt snapped from a belt tensionor disintegrating so here's my rebuild.

What is getting done now:

New phase II EJ25 block from Subaru

DOHC heads getting ported/polished, 3-angle valve job, valve guides (etc), shims for the lifters to increase valve lift, and the head is getting milled to increase compression a bit.

Intake manifold is getting ported/polished

ACT Pro street clutch with lightened flywheel.

What will be done:

Cobb equal length header, high-flow cat, cat-back exhaust, cam regrind after block warranty expires.
Turbo/supercharger?
Old Mar 21, 2005 | 05:50 PM
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Car Info: Rust and Salt
PM Aaron@S-S, he has a 97 Leg too, it's hawt
Old Mar 21, 2005 | 07:11 PM
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Car Info: 97 LOB, 05 FXT, 03 Tundra
Looks like you're off to a great start!
I wish I had a 5 speed in mine; I'll put one in with the motor swap eventually.

Not like it's canonical, but my project thread is here:
https://www.i-club.com/forums/ongoing-projects-31/das-hooptywagon-68335/

Feel free to bug me with any questions, I've been in and around the Legacies for quite some time now.
Old Mar 21, 2005 | 08:30 PM
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Car Info: 1997 Subaru Legacy Outback
You know, I've been looking for your posts for a long time now. I finally dragged you out from hiding.

I'm looking to do things to the suspension too but I didn't want to lower it as much as you did since I actually use the ground clearance while driving around obnoxiously off the paved road. I wouldn't be against lowering it 1" or less though. Any suggestions? I'm thinking about just keeping the stock setup and replacing the inserts (they're blown), the entire strut assembly w/ KYB struts.
Old Mar 28, 2005 | 04:57 PM
  #5  
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Car Info: 97 LOB, 05 FXT, 03 Tundra
Sorry for the delayed response, man.

If you want to keep the stock tires/wheels, you're stuck with KYB GR2 Outback-specific replacement struts, as Legacy-spec stuff will cause the stock tires to hit the spring perches in the rear.

A number of companies like King and Scorpion make suspension lifts (basically, just longer, firmer springs) that can raise you another 2", and because they're stiffer, the car will still handle better than stock. If you do offroading, that's what I'd suggest, as, even stock, the bumper and headers hang down low enough to be in harm's way.
Old Mar 30, 2005 | 06:24 AM
  #6  
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Car Info: 1997 Subaru Legacy Outback
Any specific sites that you recommend to purchase those lift kits from? Also, do you know if the circumference is the same on the stick 15" rims w/ 00-02 16" RS rims?
Old Mar 30, 2005 | 10:21 AM
  #7  
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Car Info: 97 LOB, 05 FXT, 03 Tundra
Originally Posted by paulpas
Any specific sites that you recommend to purchase those lift kits from? Also, do you know if the circumference is the same on the stick 15" rims w/ 00-02 16" RS rims?
I'll have to look around for the lift kits.

The outside diameter does change; stock tire size on an OB is 205/70/15, which is 26.3 inches tall, while an RS setup is 205/55/16, which is 24.9 inches tall.

So you'd actually lose more than half an inch of ride height going to the RS stock setup.
Old Mar 31, 2005 | 08:55 AM
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Car Info: 1997 Subaru Legacy Outback
How much did you notice your spedometer change accuracy when you had RS rims?

For anyone else: Somone mentioned that a Phase I DOHC heads on a Phase II block will raise the compression over 10:1. I was wondering how much over 10:1? I'm curious because I am going to find out how much was milled off of my heads so I can calculate the actual static compression of my engine. It may be too high for forced induction w/o rebuilding the bottom end. I have a feeling that once I get the car back, I'll be more than satisfied with NA power. Although there is something fantastic about my A4 1.8T w/ a chip and exhaust sling shotting to 60 before I can blink.

On that note, someone sell me a 4.11 rear limited slip diferential so I can actually put all the power to the ground when the streets aren't so sticky.
Old Mar 31, 2005 | 10:48 AM
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Car Info: 97 LOB, 05 FXT, 03 Tundra
It's off by about 5mph.
There's no difference in compression between a phase 1 and phase 2. The heads are exactly the same, and the block is very similar, it's the internals that really changed (longer piston skirts, etc)
Old Mar 31, 2005 | 11:16 AM
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Then is the increased compression in the phase II a result of piston shape or combustion chamber shape in the head?
Old Mar 31, 2005 | 11:21 AM
  #11  
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Car Info: 97 LOB, 05 FXT, 03 Tundra
There shouldn't be a compression bump, that I'm aware of.

The only difference you'll find is in 99 and onward Subarus (Legacies in '00) with the 2.5 that the torque curve fattens slightly due to the different characterisitics of the SOHC heads.......

Thats what I've always been working off of, at least. I could be wrong, but I've never heard of different compression numbers.
Old Mar 31, 2005 | 02:24 PM
  #12  
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Car Info: 1997 Subaru Legacy Outback
Yea I'm reading up on nasioc and they're talking that it will get to around 10.65:1 - 11.3:1 (or so) depending on if a phase I head gasket or phase II. I hope that these are correct numbers and I get phase II gaskets for my phase II block.
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