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Old 12-20-2009, 02:10 PM   #1
fredxday
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Default Turbo stock-impreza

Hi, I'm trying to turbo my stock 1997 Impreza OBS and right now the only problem I am having is with my air intake.

any time I look for the cold air intake pipe to mount from filter to the turbo, I cant seem to figure out how my IAC hooks up to the pipe. (no large pipe flange hanging off to attact the tube to)

if anyone can give me any info what to do with my IAC i'd appreciate it, I posted this on rs25 as well with no response so I really need an answer
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Old 12-20-2009, 02:18 PM   #2
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did you turbo it already? how? or do you want to turbo it and your first concern is the intake?
The former will yield serious answers if you post photos, the latter will triger some flaming.
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Old 12-20-2009, 08:11 PM   #3
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Good luck trying to turbo a 12 year old NA engine. It'll take a lot more work than you think it will.
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Old 12-20-2009, 09:11 PM   #4
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need more info about ur turbo location, what turbo you have, etc. id just post all your stats and include some pics of what you are talking about if possible....

oh yeah, id do all that in the right ****ing forum, too. cheers!
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Old 12-21-2009, 03:46 PM   #5
fredxday
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dang, you guys cant give any one a break can you? theres like 40 boards to post in, I spent 15 minuets trying to decide which one to post it. and I dont see whats wrong with doing a turbo on my car, ye have little faith? sorry, I cant afford a brand new car.

no, its not bolted in yet, my concern yes is the intake issue. besides buying the completely wrong up pipe- its all thats holding me back from doing the turbo project.

I just need to know what exactly will happen with my IAC valve, if its not attached to my air intake.

http://i486.photobucket.com/albums/r...edxday/rss.jpg

I already have my filter and a bracket for the sensor on the pipe, so the big question reall is just the IAC.
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Old 12-21-2009, 04:35 PM   #6
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^ relax. you just didnt provide ANY infowhatsoever. The more detailed background is given, the more serious the answers usualy are. We didn't even know if you did it or are planning to do it!

That having been said, we'd all be very curious to know the details about the project. Which turbo? What pressure? Did you change the heads? How are you dealing with engine management? What about injectors/fuel pump?

Faith? Engine reliability is very atheistic, so no prayers will help
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Old 12-21-2009, 04:43 PM   #7
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Nothing wrong with putting a turbo on a stock NA impreza ... unless you want it blowing up within 1,000 miles of putting it on. Modifying the engine itself to withstand the turbo is going to take a lot more money than just putting on the turbo and intercooler itself. Whatever, take my advice, or don't. Just as long as it isn't my car, I don't really care, just offering some advice.
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Old 12-21-2009, 04:58 PM   #8
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I dont know why I cant get a direct answer about my question, you take me for an idiot? Im replacing the stock heads with EJ20 heads, replacing fuel pump to a walbro 225, stock impreza turbo planed at running below 10psi. I have the full exhaust set up (stainless steel exhaust manifold, resonator pipe, 4.5 catback, up pipe which I need a different fitting, coper gaskets) stock wrx TMIC with stock BOV and GReady e-management ECU, air, oil and boost gauge w/ pod cluster.

I am doing the project not only to get more learning experice with working on my car specifically, but its a budget project unitl Ican afford a full STI engine/drive train swap.

like previously stated, I am only lost at what will put AIR in my IAC without just.
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Old 12-21-2009, 05:12 PM   #9
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Quote:
Originally Posted by fredxday View Post
theres like 40 boards to post in, I spent 15 minuets trying to decide which one to post it.
Quote:
Normally Aspirated with bolt-on Forced Induction Powertrain
The Normally Aspirated with bolt-on Forced Induction Powertrain forum on NASIOC is for technical discussion of powertrain parts & problems for any FACTORY NON-TURBO Subaru engine in it's stock car that has some form of turbo/supercharged added to it.
Maybe in the 16th minuet, you would have seen this and cried, "viola!"

You probably ought not pop in to the naturally aspirated section of the forum with a turbo conversion question and then rip a guy up for telling you that the post belongs somewhere else, think?

Good luck with your project.
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Old 12-21-2009, 05:29 PM   #10
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I didnt rip on any one, infact, it was a mistake. I would think a board like this and RS 25 people would grow up and quit acting like a bunch of civic owners but I guess Im wrong. sone one needs help and you just have to be a dick about it.
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Old 12-21-2009, 06:10 PM   #11
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looks like you at least thought about what else would be necessary to actually have a running turbo'd (previously n/a) setup... but don't forget with a 9:1 (or whatever the compression ratio is on that engine) more than a handful of psi will probably pop it pretty quick even with a lazy tune. Now that you know what forum you will get good info in, PM the appropriate mod and ask them to move this thread to that forum. I don't think cross posting is allowed.

In any case, good luck.
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Old 12-21-2009, 06:56 PM   #12
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Wow, I stand corrected, looks like you thought this through. You can't really blame me for thinking you were another one of the idiots who say "DURRRR HOW CAN I TERBO MY CAR", though. A thread asking about a turbo kit on a 2.5RS/2.5i pops up just about every week. At least you're different! Good luck on your project, as for your original question I have no idea
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Old 12-21-2009, 08:30 PM   #13
fredxday
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alot of my friends seem to think a turbo bolts on and makes your car fast, as if changing the air filter to a "performance K&N" will add "PWNZ0R TORQE AND HORSEPOWAAA"

who would be an appropriate mod to ask to move this?
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Old 12-21-2009, 08:44 PM   #14
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not sure off the top of my head, subie gal is a mod for this forum. if you enter the forum in question and scroll to the bottom of the screen, below the list of threads, there is a bar with options and current active members and mods for that forum.
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Old 12-21-2009, 09:18 PM   #15
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Nice project. But as nairbmilk said, asking a "what intake i need for my turbo RS" , in 99.9% cases (YOU are the other 0.1) that some 16yo bought an old rs for 1000$, spoke with his ricer buddies, bought a lawnmower turbo from ebay, and wonders which VTEC intake will fit. That's where our allergy comes from

Good luck with the project, it sounds great, and it really seems you know what you get yourself into. As others said, the NA with FI subforum is the puddle for you. And pardon my harsh words earlier on
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Old 12-22-2009, 01:14 PM   #16
fredxday
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rofl vtec, that's what all my 'puerto rican buddys' drive are there vtec hondas and try racing off this strip we have. I beat them even in a stock NA impreza. and no its definitely not an ebay turbo... its a TD05 stock turbo my buddy steve sold me from his old engine, he didnt need it so I got it for $100 because he swapped his his engine for a 95 JDM engine+drive train

btw. Im 21, so Im usually smarter about my buying decisions, I mean I didn't buy a honda after all hahaha
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Old 12-23-2009, 10:36 AM   #17
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To the nay sayers



4 years, 45k miles on 6 PSI boost. Stock ECU, injectors, and fuel pump.

fredxday - I'll take a pic of my IAC setup and see if that helps you.
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Old 12-24-2009, 08:30 AM   #18
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Quote:
Originally Posted by 2milehi View Post
To the nay sayers



4 years, 45k miles on 6 PSI boost. Stock ECU, injectors, and fuel pump.

fredxday - I'll take a pic of my IAC setup and see if that helps you.
Mine looked very similar for 7,000 miles of track days. when we tore down the engine it looked new.

OP: you will likely need to either make a custom intake, or find a breather filter that will fit on your IAC valve and skip the hose to the intake entirely.

something like this:
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Old 12-24-2009, 12:07 PM   #19
Kevin Thomas
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Quote:
Originally Posted by fredxday View Post
Hi, I'm trying to turbo my stock 1997 Impreza OBS and right now the only problem I am having is with my air intake.

any time I look for the cold air intake pipe to mount from filter to the turbo, I cant seem to figure out how my IAC hooks up to the pipe. (no large pipe flange hanging off to attact the tube to)

if anyone can give me any info what to do with my IAC i'd appreciate it, I posted this on rs25 as well with no response so I really need an answer
Your car will run erratically if at all if I'm remembering correctly. I won't have time today or tomorrow to look at it but if I remember, I'll take a pic or at least look at it and get back to you.

[Violin Playing] BTW: If it helps, I ran turbo/nitrous on my 1997 Outback Sport for years. I am the one and only owner of it and it has been turbocharged (5-6psi of boost) since about 1998-1999. Take it for what it's worth and good luck.[/Violin Off]

It's important to respect your ride and not get carried away for longevity. 5-6psi and intercooled will take you a long way. Good luck with your project! And don't let these guys get under your skin. I have heard worse until.........

Last edited by Kevin Thomas; 12-24-2009 at 12:13 PM.
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Old 12-24-2009, 09:49 PM   #20
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Quote:
Originally Posted by nairbmik View Post
Nothing wrong with putting a turbo on a stock NA impreza ... unless you want it blowing up within 1,000 miles of putting it on.
Someone isnt very positive. Those ej22e's are pretty damn stout. 3500+ miles on my ghetto turbo conversion with no EM and miles are going up everyday without ANY issues.

Last edited by Abest10; 12-25-2009 at 05:57 PM.
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Old 12-24-2009, 10:20 PM   #21
nairbmik
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Usually the installation of turbo kits on NA cars are done very poorly, since amateur enthusiasts think they can take the project head on. Without doing it properly, there's a damn good chance that your motor will blow. Don't get me wrong, a speedy NA car is awesome, but a lot of them will be done by 50,000 miles.
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Old 12-25-2009, 01:16 AM   #22
fredxday
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I've seen that filter before or alteast something similar but I know its not for it or anything like it;

LINK


as for the car, I probably wont drive the car any where near 50,000 miles with the turbo on it. but Im sure if any one just turbos a NA engine is because they didnt change the compression, which I am fully aware of that and still trying to gather information about it.

original engine has 250k miles on it already but supprisingly is running GREAT. but I'll end up having the cash to buy STI engine/drive train by next winter/spring

sounds silly that Im spending cash just on this instead of saving for the engine, but the exhaust set up will replace stock crap after I get it anyway (I do not have any plans of using a cat up pipe and NEVER will!)
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Old 12-26-2009, 12:33 PM   #23
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Quote:
Originally Posted by nairbmik View Post
Usually the installation of turbo kits on NA cars are done very poorly, since amateur enthusiasts think they can take the project head on. Without doing it properly, there's a damn good chance that your motor will blow. Don't get me wrong, a speedy NA car is awesome, but a lot of them will be done by 50,000 miles.
Now go through the "built motor" section and count how many enthusiasts here have blown their "turbo from the factory", or handbuilt custom motors, in less than 50k miles.

Give the guy a break. He's asking questions before he gets down to the nitty gritty.......last time I checked, that IS the right way to go about the project.

For the OP: You can add a bung to any intake tube for your IAC air source. I'd use brass or stainless personally, but you can use a 3/4" barb tube fitting and drill the intake tube (post-MAF) so you can screw the fitting into it. Use JB weld or something similar to seal it up.

Alternatively, you can mark a location for the barb (or nipple) and source a small piece of aluminum tube to fit your IAC inlet tubing, then have it TIG'd to the air intake tube for a more professional result.

Good luck with the build!

Jay Storm
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Old 12-26-2009, 02:33 PM   #24
nairbmik
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Quote:
Originally Posted by Storm View Post
Now go through the "built motor" section and count how many enthusiasts here have blown their "turbo from the factory", or handbuilt custom motors, in less than 50k miles.

Give the guy a break. He's asking questions before he gets down to the nitty gritty.......last time I checked, that IS the right way to go about the project.

For the OP: You can add a bung to any intake tube for your IAC air source. I'd use brass or stainless personally, but you can use a 3/4" barb tube fitting and drill the intake tube (post-MAF) so you can screw the fitting into it. Use JB weld or something similar to seal it up.

Alternatively, you can mark a location for the barb (or nipple) and source a small piece of aluminum tube to fit your IAC inlet tubing, then have it TIG'd to the air intake tube for a more professional result.

Good luck with the build!

Jay Storm
Try reading what I said before, genius. Lots of noobs hear the word turbo kit and think that if they turn a few bolts and add some tubing, their car will be the fastest on the block.

Without doing some planning and researching what the hell you're gonna do, your motor is gonna experience a lot more wear and tear than it should. Obviously the OP thought this project through, which I said before, and he is one person of the small small minority of enthusiasts who actually know what they are doing.

Lots of these people who just bolt on the turbo without replacing the internals will undoubtedly do some spirited driving, which will result in faster engine wear, which = engine kaboom. Yes, I doubted OP at first because there was no initial background info provided, which led me to believe that he was just another noob, but this is not the case.
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Old 12-27-2009, 01:06 AM   #25
cdnsigop
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11-12 psi for the last 2 months driving HARD. Stock internal 100k mile EJ22. Good tuning, and knowledge go a long way. I used a 98 legacy 2.5 intake pipe chopped down on my impreza turbo set up. It has the big fitting on it that you need...

Take a look... http://forums.nasioc.com/forums/show....php?t=1888017
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