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Old 05-15-2001, 09:48 AM   #1
HYDCSX400
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Member#: 2183
Join Date: Aug 2000
Location: Bellows Falls, VT
Vehicle:
87' Shelby CSX #400
Black/silver

Question 1.8 to 2.2 swap, same harness???

I have a chance to buy the impreza I have been looking for to start a build up project, at a real good price.......... but!, the only thing wrong with it is it has the 1.8l and I wanted to get one with the 2.2l to play with until I figure out what to start with for a turbo eng. (import an STi eng. or build a 2.2 turbo, havn't decided yet).

So my question is this.
Can I use the same wireing harness and just change the eng. and ECU, or is the harness too different to adapt.

also, what price could I expect to find for a 2.2l eng. I am assumeing the trans. and flywheel from the 1.8 will bolt to the 2.2 (right?)

or another thought! what are the HP and tourq (sp?) specs of the two eng.s (is it realy worth the swap if I'm just going to go turbo in a couple years anyway?)

thanks for any help you can give me,
Caine
HYD Racing
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Old 05-15-2001, 01:14 PM   #2
bobjr94
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Member#: 6176
Join Date: Apr 2001
Chapter/Region: NWIC
Location: Roy,WA
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15 WRX, 04 wrb STi
85 wrb BRAT

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The wiring is almost the same, the main difference is the 2.2 has a electronic idle air valve, the 1.8's just have a thermostat type control(opens when its cold, closes as it gets warm), but you can just drop the 1.8 manifold on a 2.2 to solve most your problems...As for the computer, I dont know if it will know the difference ..

Im doing the same thing on a 96, but im putting in a 2.5, the manifold dont fit that, but the throttle body may....I think the 1.8's range around 100-110hp, 2.2's 130-145, and 2.5's around 165..You might expect to pay 500$ for a early 90's(130hp) 2.2, and 800$-1000$ for a late 90's..
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Old 05-15-2001, 01:25 PM   #3
efoo
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Join Date: Jul 1999
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actually, if you're looking for a 2.2L engine, let me know. I will have one out of my own car not too long from now, and I'm willing to deliver or meet you in the middle (I live in Massachusetts). My 2.2L is from a '96 Impreza Outback Sport wagon and has 94K miles on it, still runs fine.

The 1.8L is pretty weak. When I bought my wagon used I test drove both a used 1995 1.8L wagon and a 2.2L wagon. Even though the 1.8L wagon was half the price I ended up taking the 2.2L because the smaller engine felt pretty darn anemic when going up hills with 4 people in the car. I think the difference is like 110 hp vs. 135 hp and 110 ft/lbs vs 140 ft/lbs of torque. It's very noticeable.

-Edwin
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Old 05-15-2001, 07:54 PM   #4
wac
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Location: Lebanon, NH, USA
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2005 Outback 2.5 XT
Champagne Gold Opal

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Caine: if I were you, I'd put up with the 1.8L and hunt down an STi motor. There's no point doing twice the amount of work just to end up at the same goal.

Turboing an EJ22 wasn't as easy as I hoped, and I'm sure you'll get more mileage out of an STi motor when you do find one. I've come to the conclusion that to run more than 5 psi safely, the EJ22 will require big injectors and a suitable computer to drive them. FYI, reports about the TEC-III are very encouraging, and sound much more appealing to me than the TEC-II.

-WaC
Wayne
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