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Old 02-07-2008, 02:16 AM   #1
'93Impreza1.8T
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Question Impreza 1.8T

I'm trying to turbo my 1.8L Impreza L AWD and I was woundering if my stock ecu will work or could i use the legacy ecu and what else would I need for the set-up to work? I already have the crossmember from a '93 Legacy Turbo, stock turbo from a v5 wrx, complete turbo manifold, uppiupe, turbo back exhaust, and turbo water pump and thermostat housing. Any help or advice if great. Thanks.
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Old 02-07-2008, 04:01 AM   #2
pheonix991
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Don't bother with putting a turbo on an NA. Just do a swap.

You might be able to get 5lb of boost w/o blowing the engine.
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Old 02-07-2008, 09:42 AM   #3
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Quote:
Originally Posted by pheonix991 View Post
Don't bother with putting a turbo on an NA. Just do a swap.

You might be able to get 5lb of boost w/o blowing the engine.
This is the typical ignorant reponse you'll get here in Conversions. Start a new thread in the proper forum (aftermarket forced induction) and you'll find out what you really can do with an Ej18. Also, look for "Subachad" and Uniquemotorsports. The information and support is out there, you just need to look in the right place...
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Old 02-07-2008, 09:45 AM   #4
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i don't know that i would go as far as to say ignorant .. more stereotype than any thing else .. yes it will probably blow up
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Old 02-07-2008, 09:49 AM   #5
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thats why subiesports EJ18 blew up when they put a TD04 on it right?
(it hasn't, the clutch just slips like hell)
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Old 02-07-2008, 09:51 AM   #6
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Quote:
Originally Posted by Jaxx View Post
i don't know that i would go as far as to say ignorant .. more stereotype than any thing else .. yes it will probably blow up
Saying you "might get 5lbs of boost" is ignorant. It's pretty common knowledge among those of us who have boosted Ej18's that 8-10 is pretty reliable even without an intercooler. 12+ is totally feasible with an intercooler. Though this all depends on turbo choice. The above numbers would be with a tdo4. An early JC/PDM kit with a vf22 is set more at 5-6 for the ej18's.

Everyone takes "ignorant" as some sort of horrid insult. It's not. It doesn't mean you are stupid. It just means you don't know what you are talking about...
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Old 02-08-2008, 02:28 AM   #7
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Thanks for the redirect like i said any info is good.
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Old 02-09-2008, 07:11 PM   #8
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I boosted my 1.8 a long time ago and ran it at 7psi then 10psi for a good 6 months beating the piss outta it. towards the end of it's life I was running 14psi on a vf22. had I not had a legacy 2.2 block sitting around, I would have thrown another 1.8 no questions asked.
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Old 02-29-2008, 02:05 PM   #9
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For the ECU look into an emanage blue. Swap in some 91-94 legacy turbo 370cc injectors. Once you do this, pull 33% from the the MAF map. This will allow up to about 6psi of boost with no other tuning. To get more boost, you will need to pull timing from the timing map and add some fuel.
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Old 02-29-2008, 08:09 PM   #10
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if you're going to be pulling the crossmember and what-not, why not put ej22e heads on your ej18 block. with lowered compression and better flowing heads, you'll be able to up the boost with management.
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Old 03-05-2008, 02:09 AM   #11
'93Impreza1.8T
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wut do those heads come off of?
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Old 04-11-2008, 05:08 PM   #12
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im gonna be turboin my 1.8 same rods as wrx weird. 9mm thick walls 2.
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Old 05-22-2008, 01:07 PM   #13
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I'm pondering using TurboL's recipe for my '96 EJ18 Brighton:

TD04 (what about a CT26?)
WRX fuel pump (for which motor, year?)
WRX water pump? (for which motor, year?)
WRX injectors (for which motor, year?)
eBay/chinese crap intercooler and radiator
rising rate fuel pressure regulator
Greddy eManage (Ultra+accys most likely)

I'm thinking I'll keep the stock exhaust manifold and build a custom up- and down-pipe so I don't have to find a turbo crossmember.

The eManage looks like the most expensive part, aside from the new tires I better buy!

Thoughts?

TurboL, are you around? Are your eManage maps available?

Thanks!
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Old 05-22-2008, 09:52 PM   #14
simple monkey
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Quote:
Originally Posted by '93Impreza1.8T View Post
wut do those heads come off of?
90-94 legacy non turbo had the dual port heads and will accept a wrx manifold. the newer ej22's had single port heads i think? can someone confirm this?
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Old 05-23-2008, 11:40 AM   #15
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My 98 Legacy's 2.2 had single-port heads. I think in 1996 they switched to single-port.

Last edited by jey; 05-23-2008 at 05:50 PM. Reason: Found information on the switchover year
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Old 05-24-2008, 01:35 AM   #16
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Quote:
Originally Posted by jey View Post
My 98 Legacy's 2.2 had single-port heads. I think in 1996 they switched to single-port.
I think you are correct. 96 happens to be the first year of the EJ25... coincidence I think not!
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Old 05-26-2008, 09:46 PM   #17
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running 7 psi here on a 1.8 w. ej22t heads. pretty fun.

shooting for 17 psi out of the td04 when i get bigger injectors
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Old 06-03-2008, 07:00 PM   #18
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can i use wrx header uppipe and down pipe i have everything from my wrx that i have swaped out for better parts
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Old 06-04-2008, 10:27 PM   #19
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Quote:
Originally Posted by 4drgc8er View Post
can i use wrx header uppipe and down pipe i have everything from my wrx that i have swaped out for better parts
If you have a ej18, you can hook up a wrx header up pipe/downpipe but you'll either need to notch the crossmember or get a turbo crossmember. You also have to relocate the water pump i believe. The good thing is that you can acquire the parts for next to nothing.
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Old 06-09-2008, 10:47 AM   #20
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sorry, im not able to post a thread anywhere else. if it doesn't bother you guys, does anybody know if i can put sti pistons on a 97 legacy ej25 engine for turboing. is there a recipe for this? thanx
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Old 06-10-2008, 02:47 AM   #21
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Quote:
Originally Posted by panky14 View Post
sorry, im not able to post a thread anywhere else. if it doesn't bother you guys, does anybody know if i can put sti pistons on a 97 legacy ej25 engine for turboing. is there a recipe for this? thanx
Pistons don't make an engine turbo. If it is the ej25D, don't even bother with a turbo, get a swap.
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Old 06-10-2008, 08:06 AM   #22
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i think i can find some maps, they are all for 550cc injectors with a blow through maf setup. PM me if youd like them.

and to the people who dont believe that turboing the ej18 is a worthy venture, talk to the STi's I walked on. And itd still be running if I put the correct headgaskets and headbolts on it from the get go.


heres my thread:
http://forums.nasioc.com/forums/show...ghlight=turbol
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Old 07-01-2008, 11:43 PM   #23
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Quote:
Originally Posted by Matt Monson View Post
Saying you "might get 5lbs of boost" is ignorant. It's pretty common knowledge among those of us who have boosted Ej18's that 8-10 is pretty reliable even without an intercooler. 12+ is totally feasible with an intercooler. Though this all depends on turbo choice. The above numbers would be with a tdo4. An early JC/PDM kit with a vf22 is set more at 5-6 for the ej18's.
I am running my 1.8 (220,000+miles on the engine) at 10-12 psi with a TMIC, but no scoop so it might as well be non intercooled. Stock USDM STi injectors, Field FC, E85 fuel, the rest of the ECU system is stock, VF22 JC sports kit, WRX trans with RA gears, twin plate exedy clutch, WRX rear diff, and 2.2 cams in 1.8 heads for the engine. I didn't feel the cams till I turned the boost up, but they are nices from 4-6k. Other chassis mods, WRX sways front and back, WRX rear disc brakes, JDM black 4 pots up front, WRX stock wheels for summer, 5 spoke RS goldies for winter, WRX seats F&R.
I wish I had a better tuning system I know it has a lot more power, high rev limit, and drivability (idle and MPG issues). I just have a hard time buying a nice system for a $3k car. Everything else has been hand me down parts from other car. It is a lot of fun to drive top 3 of cars I own right now. Beats up on WRX, haven't run any STi yet. I should take it to the track to see how it runs, but I am lazy. Matt come pick it up tomorrow and make an afternoon out of it.
MCL
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Old 11-01-2012, 11:15 AM   #24
95imprezasears
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Default 95 impreza 1.8l

i was also thinking about throwing a turbo on my 1.8 to see what i can get but from what i have heard its better to swap but what motor should i swap into it any suggestions?
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Old 11-01-2012, 02:21 PM   #25
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Quote:
Originally Posted by 95imprezasears View Post
i was also thinking about throwing a turbo on my 1.8 to see what i can get but from what i have heard its better to swap but what motor should i swap into it any suggestions?
ej257, ej22T, ez30r
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