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Old 04-27-2005, 04:56 AM   #1
sick boy
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Not sure right now.

Default what to do with my 1.8na?

1994 impreza L 1.8 na. Im looking to do anything with this engine. Can i throw a turbo on it or anything?!? What about dropping a larger engine in it? would it require massive amounts of work and such? any reply would be helpful... trevor
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Old 04-27-2005, 07:23 AM   #2
EcksJay
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'07 KLR 650

Default Do a search!

Well, one thing that you could do is convert it into a boat anchor....
Seriously though, you can turbo it, but it will be only a matter of time before it blows up. And you'll have spent close to what it would cost for a WRX swap. (3-4k) Just look up Kostamogen.
As far as engine swaps, the search button is your best friend. But, since you just recently joinrd up, I'll give you a few leads.
First off, is your car a sedan or wagon? AWD? Standard or Auto? What is the condition of the car? What do you plan on doing with it?
You can do any swap that you want, provided that you have the time and money. The cheapest and the easiest to do are:
IIRC, the 2.2 from a similar year will plug right in. You can normally find those for about $300.
OR, you can get your hands on a 2000-up EJ 2.5. (Legacy, Forester, Impreza RS 2.5 liter N/A) With very little work you'll get 165 HP for about $800. Add on some cams, equal length headers, air intake, thin headgasket, and you'll be close to 200 HP.
All of this off the 1.8 ECU. That means zero wiring. You will have to run at least 91 octane, or you'll have a lot of knock.

Other swaps that you could do are: V.2 or V.3 JDM WRX swap. You'll get about 230ish HP for about $2500. There isn't as much wiring as a USDM WRX, but if you live in an area that does emissions testing, you're pretty much outtta luck.
Then that leaves us with the USDM WRX and STI motors. Lots of wiring to do. It's not a really hard job, just time consuming. For more info. READ THE STICKYS!!!!!!!
(BTW, did I mention that the search button is your friend?)
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Old 04-27-2005, 03:31 PM   #3
akcel
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with the top down low.

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is that owned? or what? im not sure what to think lol. u could always take the cylinders out of the block turn it sideways, put some coal in there and have a bbq
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Old 04-27-2005, 04:05 PM   #4
staticfritz
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if you can't afford a wrx or don't need that much power, a newer 2.5 block can be had for ~1k with lower miles usually. should be able to run off the 1.8 ecu i believe too
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Old 04-27-2005, 04:26 PM   #5
Jaxx
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depends on what you consider running
bad idea IMHO

my 1.8 is sitting on an engine stand in my garage .. its free to anyone that wants to come and haul it away...
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Old 04-28-2005, 06:50 AM   #6
EcksJay
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Well, there are more than a few people running 2.5 engines off the 1.8 ecu. And with the exception of a few people that got bad motors, they seem to be having pretty good luck. I agree that it is by no means ideal, but compare the price of a 2.5 swap to the price of a WRX swap. And then add on all the work that you have to do to get it (WRX) in there. There really is no cheaper and easier way to increase HP. For less than $800, you can get 165 HP. For approx. $3500-4000, you can get 227 out of a WRX. So, if one does the 2.5 swap, one would save on average about $2500-ish. Take that money, toss in a set of cams, equal length headers, maybe use a set of 2.2 heads, thin headgasket, and you're at about 200 HP. And you'll still have money left over.....
If one has the money and time to spend on a WRX swap, then I say go for it. I might find myself in that situation this fall.... But, if your on a budget, and your new to swaps, then the 2.5 is a decent place to start.
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Old 04-28-2005, 08:59 AM   #7
wildfire
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If you want to budget even more, hit up a 2.2, put you're 1.8 heads on it & you're in it for around $300 for around 155hp. I'll have my 2.2 swap done soon using that combo. With the money you saved you could cook up a turbo setup (salvaged parts) & have it set up pretty nice for a street car. Just a after thought, you could turn around & set it up for a NX Nitro kit & be diffrent that the rest of use. For street racing you could get the kit that sets it up like a turbo & save some gas mileage on for the rest of the time you have to go to work ;=]. Limitless possablitys ;=]
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Old 04-28-2005, 09:18 AM   #8
scoobyimprza
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I ran a 1.8 turbo for more than a year without a problem and that was a mid 14 second car and was very very fun. You can easily turbo it for under $2000. If your engine is in good shape and you have a conservative tune then your engine won't blow. The shortblock itself is very strong.

Brent
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Old 04-28-2005, 02:20 PM   #9
Matt Monson
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I am going to second the 1.8t route. There are a number of guys here in CO that have been running 1.8t's for a long time. The ring lands are so freaking thick that they take a ton of detonation to blow up. And if you blow it up, you go to the junkyard for a $100 longblock and put it back together. Look up Unique Motorsports. That is Subachad's site. He has real detailed info on how to do it on the cheap with a WRX turbo.

OR, go the Ej25 route. Pretty straightforward swap. There are a few little tricks with EGR, and other stuff when you move your wiring harness over, but no real wiring involved...
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Old 04-29-2005, 01:40 PM   #10
EcksJay
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What if the 1.8 has 145K on it and it's starting to leak oil? What constitutes an engine in good shape? 1.8t....hmmm...
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Old 04-29-2005, 02:06 PM   #11
scoobyimprza
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The leak is probably coming from the pan or the crank seal. That's an easy fix.
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Old 04-29-2005, 04:07 PM   #12
Matt Monson
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or from the front of the oil pump...
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Old 04-29-2005, 11:13 PM   #13
EcksJay
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But what about the mileage? Or should I just look at it as having fun before the engine goes? Would a 1.8t be a poor choice for an auto-x car?
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Old 05-02-2005, 04:24 PM   #14
gf8rallywagon
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how difficult is it to do the front crank seal, what is envolved? also any more info on the 1.8t would be great...
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Old 05-03-2005, 11:59 AM   #15
sick boy
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everybody thank you. you have all helped out so much. i have checked out a local junkyard. rear end accident 2.2 legacy with 45000 miles on it for 200 dollars. wow. and so it begins. thanks guys. trevor
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Old 05-03-2005, 01:08 PM   #16
EcksJay
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Thats not a bad deal! I went around to the various yards, and the best I could find was an engine with 126K on it, and they wanted $300! Not to worry, my co-worker is selling his 93' Legacy sedan for a $100. It runs pretty well, except reverse is shot.
But that means that I now get rear disks
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Old 05-03-2005, 01:32 PM   #17
Siper2
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If you guys think the 1.8 is rough, I saw a new-age 1.6 Impreza on St. Martin last November.

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