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Old 02-02-2001, 04:05 PM   #1
Scooby Newbie
Member#: 3531
Join Date: Jan 2001
Location: Long Beach
Post Help...your opinion on building a 2wd Impreza Civic SiR!


I just got a used 2wd 93 Impreza base model, manual with the 1.8 engine. I looked up the specs of the car and according to MSN Carpoint the car only weighs in at 2315lbs. Is this correct? What's everybody's opinion on just keeping this car 2wd, getting a 2.2 or 2.5 engine for the added HP and working on the suspension and brakes to create something that would make a Civic eat dust. I'm not interested in making it look like a WRX. Instead just make it look like a plain Jane Impreza sedan. I figured that there would be less loss of HP to the drivetrain since it's only 2wd and about 200 lbs lighter than a Civic. With a 2.2 engine it should really move. How should I go about starting on this project? Can I make the car lighter than it already is? I'd like to get started it solo or autocrosses using this car...please your input is greatly appreciated.
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Old 02-02-2001, 04:07 PM   #2
Scooby Specialist
Member#: 252
Join Date: Sep 1999
Location: San Antonio, TX
2001 Arctic White
Camaro SS #1800


turbo for power; DMS for suspension; Prodrive/Alcon for brakes Hope you have a small fortune to spend
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Old 02-02-2001, 04:52 PM   #3
Scooby Specialist
Member#: 145
Join Date: Aug 1999
Chapter/Region: MWSOC
Location: The Windy City
Banned to
Housework for Summer



I was in the same boat as you too.

First thing is to ditch your 1.8L.

Most people buy the Impreza because of its AWD and handling. It's certainly not based all on looks. If you keep it a FWD, you will not be better than any other Civics IMO. But changing to AWD can be a PITA unless you have the tools/resources/time/knowledge to do so.

2315lbs.??? All the publications that I've seen on FWD base models are around 2400lbs.
It's true that AWD system will increase your weight a little and contribute to more driveline losses. Is it enough to noticably slow the car down? Don't know. Never raced side by side.

The older 2.2L engines don't produce much power at all.

Any of the newer 2.2L and 2.5L motors will require you to use the AWD tranny/system since it has a thicker shaft than the FWD trannys.

The best thing for a budget set-up would be to buy a whole wrecked Subaru Legacy Wagon from a Salvage yard. I've seen them generally go between $1k-$3k for the whole car.

You can use the 2.5L motor/tranny/AWD/larger brakes/rear disc brakes/struts/rear sway bar system/etc.

Go to my site for an intro: http://aspen.mwic.org/22lm

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Old 02-02-2001, 08:54 PM   #4
Joel Gat, 1.8L
Scooby Specialist
Member#: 32
Join Date: Jun 1999


Whacha talking about Aspen? I've run several 2.5, '99+ trannies on my 1.8 and I mated my 1.8 FWD tranny to one of my 2.5 engines (the phase-II DOHC one). Everything fits just fine. You can drop a 2.5 into a 1.8 FWD car without changing much - aside from the ECU, which requires wiring harness which is a pain in the butt. Nonetheless, mechanically, all interchangeable.

In fact, when I could not find a clutch alignment tool once, I took apart my 1.8 tranny and used the input shaft as an alignment tool. HEaviest alignment tool you've ever seen!

I think the 1.8 tranny will handle a stock 2.5 no problem. I think once you start getting more power out of the 2.5, you'll start having problems... But even basic boltons would be okay... The 1.8 is very very similar to the 2.5 tranny. And the trannies themselves are identical in design with the difference being the terminator on the FWD models instead of the center diff (and thus a smaller rear tranny cover).

As for the weight - I don't think any impreza is under 2400 stock. The '93 4-dr is the lightest, followed by a tie, I think, in the '94 4-dr and the '95 2-dr. THe '95 4-dr is like 5-10 pounds heavier yet. ANd after that they start porking up pretty quick (I mean look at the RS - 290 pounds heavier than an AWD converted '95 2-dr.

Joel, who thinks that the hollow gear drive shaft design of the scooby tranny is really cool for AWD but is just a total waste in a FWD car and would only serve to contribute to more driveline loss than a civic has.
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