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Old 09-27-2005, 02:39 PM   #1
Jaysr20
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Default Newbie question...

I have been looking real hard a buying a 2001 2.5 RS and I was wondering if you guys and/or gals could maybe shed some light on things to look for and possible common problems with these cars. Admittedly I know virtually nothing about them as I am a Nissan guy and have been very used to my nearly bullet proof sr20de.


Thank you for your help!


Jason
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Old 09-27-2005, 05:55 PM   #2
cjfike
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Rust, leaks, dents, do the seats smell like Rover went wee-wee there?

Was the previous owner under 22?

I used to be a nissan errr... guy. May not be as pretty, however Subaru is better made.

imo of course.
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Old 09-27-2005, 07:55 PM   #3
Lethargic1
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Do yourself a favor and get it carfaxed. Make sure the mileage adds up to the right numbers. How many owners has it had? If the car checks out ok then go for it. Welcome to the wonderful world of subies.
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Old 09-28-2005, 01:34 AM   #4
ballitch
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does it leak any fluids, do you like stick over manual, cause most subies are auto. im sure you will come to love the concept of horizontally-oppossed engines.


~Josh~
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Old 09-28-2005, 01:56 AM   #5
Boom05rs25
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Quote:
Originally Posted by ballitch
does it leak any fluids, do you like stick over manual, cause most subies are auto. im sure you will come to love the concept of horizontally-oppossed engines.


~Josh~
stick over manual?........................ nuff said!
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Old 09-28-2005, 02:24 AM   #6
svek
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Quote:
Originally Posted by Boom05rs25
stick over manual?........................ nuff said!




to the original poster: dont make threads with a name like this. that way when someone is searching they will see what the thread is about, not "duh newbie...duh...."
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Old 09-28-2005, 02:35 AM   #7
93subi
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98 Trans AM, Red

Impreza GC8

the N/A subies are pretty stong cars, they can take a beating like the honda's and not bitch about it
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Old 09-28-2005, 03:33 AM   #8
Jesse00
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just dont expect sky rocket numbers if you t/c it
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Old 09-28-2005, 10:10 AM   #9
Jaysr20
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Quote:
Originally Posted by svek




to the original poster: dont make threads with a name like this. that way when someone is searching they will see what the thread is about, not "duh newbie...duh...."

Sorry about that...I know some places tear newbies apart so thanks for going easy on me.
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Old 09-28-2005, 11:14 AM   #10
Jaysr20
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Quote:
Originally Posted by ballitch
does it leak any fluids,


~Josh~

Sounds like basic stuff to me and I know the drill on those things anyway. I was just wondering if there is anything unique to the these cars that I need to look for.

Thanks again!
Jason
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Old 09-28-2005, 12:03 PM   #11
Jaysr20
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Quote:
Originally Posted by Jesse00
just dont expect sky rocket numbers if you t/c it

I have to be honest with you, I don't even know what the stock hp is for this engine. What would you call sky rocket numbers? What is the normal expectation for power when adding a turbo?
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Old 09-29-2005, 03:02 AM   #12
mamiyarz67
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i think with the 2.5 motor, adding at most 5lbs my freind got around 220ish crank Hp
basiclly an 06 WRX
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Old 09-29-2005, 12:09 PM   #13
HolyCrikey
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Oh boy... here comes to turbo-a-rs question

I'll say it just once. RS blocks do not like to be t/c'ed. They can run fine on a super low boost for awhile, but they just aren't meant for it. It's a lotta money and a lotta upkeep to make sure it runs decently.

Stock 2.5 has 165 hp, so don't forget how much of that you lose with the AWD driveline and differentials.
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Old 09-29-2005, 12:47 PM   #14
Jaysr20
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Quote:
Originally Posted by HolyCrikey
Oh boy... here comes to turbo-a-rs question

I'll say it just once. RS blocks do not like to be t/c'ed. They can run fine on a super low boost for awhile, but they just aren't meant for it. It's a lotta money and a lotta upkeep to make sure it runs decently.

Stock 2.5 has 165 hp, so don't forget how much of that you lose with the AWD driveline and differentials.

That is very helpful, thanks. So if turbo for this engine is not a good idea then what does it respond to best for modification?
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Old 09-30-2005, 02:47 AM   #15
HolyCrikey
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^^^^

That allllll depends on what power you are looking for. You can get a peppy car outta it with just an intake/headers/exhaust/maybe some ECU work and tuning. Don't dare expect to break 200 bhp. If you're looking for more power, and a turbo-charged application, you can't go wrong with a USDM WRX engine. You start with 227 crank hp and you can start quite a lot of mods. People are selling them quite frequently

Now I'm not going to slam the turbo-an-RS-idea. You CAN run a a low-boost setting on the stock RS block for about the same money and have a safely done forced induction car. However, it's going to require a LOT more TLC, no matter what. And the best way to go would be to have a shop do some fine tuning work with you. But it CAN be done. Many people have done it and have blown blocks, so beware. The common consensus is running over 5-8 PSI is a big risk on the stock block.

If money isn't TOO big of an issue, definitely check out the swap idea. WRX engines can be had for decent prices. If you're really adventureous with money, check out a USDM STi engine. That would be quite the sick car. Remember that with an engine swap, if you don't know the in and out's of doing it, you'll be paying someone else to do it. Especially disconcerting is the wiring harness and the pain it can be. However, plenty plenty of people have done WRX swaps without a hassle as long as you have the know-how and help to do it.

Regardless of anyone who thinks turboin' an RS will yield a good car, there is NO debate that a WRX or STI swap would yield a MUCH more reliable car for modding.

It's also important to note that the WRX tranny is not the most beloved item from Subaru. They break easily if run hard. You'll want a more strengthend tranny if you do need some big power or if you abuse the car, haha

So again, if you just want a daily driver with good suspension characteristics, just go with intake/headers/exhaust/possibly ecu/maybe valves/camshafts, etc. You'll be very happy and it'll be fun, especially in corners.

If you need to push beyond 200 bhp, you're going to need an engine swap or a turbo application of some type.

Also realize that since you're checking out an '01 RS, you have the benefit of a lighter chasis than the newer 02 GD body. IIRC, it's about 100-150 lbs lighter? However, people have generally said that the GC8 was a lighter body, but that the new GD body had much better suspension characteristics. Doing an engine swap will yield quite the nimble beast in the older body.

Hehe, or if you're loaded with money, check out the guys at TWE and you'll make you a ridiculous naturally aspirated 300 hp beast. They just did it

Good luck man!


P.S.- I have an 02 RS, and after a year of it... to me, it just isn't enough. I'm not even a horsepower addict like some, but I definitely want a turboed car. So don't settle for the bottom line. If you need more power, go for it and put that money into something that'll satisfy that need!

Last edited by HolyCrikey; 09-30-2005 at 02:53 AM.
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Old 09-30-2005, 03:40 AM   #16
EarlQHan
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Also coming from Nissan, a 2.5 RS is the rough equivalent of the 240sx. The turbo four-banger demand was not great enough in America at the time, so we got a bigger N/A motor. And when it comes to modding, turboing a KA can be done, make monstrous torque, but the motor wasn't made for it and would need several upgrades. Like doing a SR20DET swap, I assume an EJ207 swap would be much more reliable way to go.
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Old 09-30-2005, 02:18 PM   #17
imprezar25
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Quote:
Originally Posted by HolyCrikey
Oh boy... here comes to turbo-a-rs question

I'll say it just once. RS blocks do not like to be t/c'ed. They can run fine on a super low boost for awhile, but they just aren't meant for it. It's a lotta money and a lotta upkeep to make sure it runs decently.

Stock 2.5 has 165 hp, so don't forget how much of that you lose with the AWD driveline and differentials.
finaly someone that agrees with me that rs engines are not the best for turbo
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