What would I need for a turbo setup

[Dhurteau]

I currently have a 2.5rs, I have had the engine rebuilt an all. Now im bored an complacent. What would I need for a turbo setup. Im not looking for a giant power house. Im just looking to add a turbo to my current setup, push less then 10psi.

Im doing it on a budget. I REFUSE to have a mcgyver setup. Im more so in the information gathering stage to find out what I would need.

[Robk0000]

turbo, custom exhaust, engine managment, intercooler, whole lotta piping and some sensors, boost, egt and afr to make it safer

[No Boost]

what do you have for bolt-ons now? what are your goals for power and or quarter mile times?

[GC4-RS]

seen some used bolt-on kits on rs25, last one was like $1200 for everything you would need, just a thought...

[-=The Boss=-]

+1 on going with a kit...

+2 on buying a STi longblock and selling your RS motor

+3 on not doing anything at all its a big waste of $$

[Dhurteau]

I agree now on the +3 weighing out out. It isnt really worth it at all. I might as well just buy a WRX at that point. Im looking into getting a decent tune, an that be it. rest is cosmetic repair etc etc.

[No Boost]

seen some used bolt-on kits on rs25, last one was like $1200 for everything you would need, just a thought...


this is probably because they no longer have and engine to put em on lol:D

[Bu11dogg2]

Garret T25, intercooler/housing, intake mani, mani/DP/UP kit and a piggy back :)

you can run 6-9lbs all day with no lag!

[GC4-RS]

this is probably because they no longer have and engine to put em on lol:D

i think that was exactly the case with the last one i saw for $1200 :lol:

[No Boost]

honestly id settle for bolt-ons or just save up and do the swap. you can make em pretty quick with intake and exhaust work. I'm running a 14.7 1/4 mile and i still have a stock clutch, flywheel, ecu, and fuel system...

[GC4-RS]

at least he's starting off on the right foot as far as the engine goes. i cant really do jack with mine being its a single-port and all, im not trying to pull turbo componets from an old legacy just to have boost :lol: so thats why i decided to go all motor H6 :spin:

[No Boost]

the old turbo legacies are single port?

[GC4-RS]

i was told they were the only turbo single-port Subaru ever made :shrug:

any truth to that?

[No Boost]

never been under one. there are two running around here i'll stick my head under one of em next time its not moving...

[will_c]

What is the budget for this build anyway?

[Seraphinwolf]

seen some used bolt-on kits on rs25, last one was like $1200 for everything you would need, just a thought...
There was a Turbonetics T3 kit for $400+ shipping like 2 weeks ago. I was so tempted to get it and just drop it in my friend's L when he wasn't looking. :D
-Gaddis

[No Boost]

you have to be careful with some of those cheaper kits. they will come with a turbo, manifold, and a pile of universal intercooler piping for you to assemble and try to make fit your car. no oil lines, no computer stuff......

just make sure you read the fine print ;)

[Bu11dogg2]

you have to be careful with some of those cheaper kits. they will come with a turbo, manifold, and a pile of universal intercooler piping for you to assemble and try to make fit your car. no oil lines, no computer stuff......

just make sure you read the fine print ;)


+1 seen some bad ones before

[GC4-RS]

i was told they were the only turbo single-port Subaru ever made :shrug:

any truth to that?

[Black_ice]

so whats the question with the legacy turbo motor/setup?
I just so happen to have a SS motor w/ complete turbo setup sitting in my garage waiting for a complete 1 over then go into my bugeye :spin: :D

[Bu11dogg2]

^when's it going in?

[Black_ice]

^when's it going in?

it'll be in by spring time, right now I've got a bud with a line on a blown 2.0 but its a complete motor. heads and all so if I do pick it up (which would really really help out my little project twords its power goals. much better heads than the stock sohc heads on the 2.2).
I would be doing a complete 1 over on the block.

but for those with questions on that turbo setup, it seems like it would bolt up to any n/a motor with the way the turbo inlet is with the 90 degree! if anyones really interested in that turbo setup it may be available for a few billz :cool: PM me if interested...
might even sell heads along with it so you wouldn't need to tap the head for the oil feed line...

[Xise]

Dhurteau, there are quite a few things you would need before you boost your stock EJ251 block from an 01 RS. I have done tons of research on this and started buying stuff before I reallyknew what i was getting into.

first if you are going to do this, you sohuld do it right, having said that you should have rebuilt your motor with low compression pistons to handle the boost. Our motors run high compression pistons when coupled with boost tend to detonate and eventually brick you motor if you run boost over 5 or 6 psi.

My recommendation to you is to get a set of forged low comp. pistons, they run around $450-$500, along with some sti rods which are also forged, your crank is fine to reuse but get some good bearings all around ACL or cosworth are very good

after you take care of the bottom end your motor can handle the boost well over 10psi, but 10 psi should be no prob and reliable too.

If you are dohc or sohc doesn't really matter, you will need the following stuffs;

-turbo crossmember or notch your stock RS xmember
-turbo oil pan, or you can tap you current oil pan for the oil return line for the turbo
-turbo oil pump
-higher volume fuel pump
-bigger fuel injectors
-coolant tank for the turbo
- all the lines to oil and cool the turbocharger
-clutch with the clamping strength to handle the extra HP
-resurface your flywheel or just a new one (i would stick with oem style)

and the obvious stuff;
-turbocharger (if you get forged internals get a td05 or 06 :devil: and you can burn wrxs)
-intercooler TMIC of FMIC
-emanage of some sort
-turbo timer
-entire exhaust system; turbo headers,upipe,downpipe,catback
-turbo inlet
-bov or bypass
-air intake

I might be missing something, please feel free to post if you know :). so as you can see there is quite a bit of stuff you will need, it does get quite expensive. i was trying to do this exact thing for my RS and rand out of $$ If you really want to do this though more power to you, hope you DIY because installation will basically triple the cost of this little project.

I wish you much luck with your buildup and hope you get whatyou have set out to do. I have a downipe and catback from my build that i seemingly will never get to use so if you are serious and want to continue with this PM me I am going up to maine in april so maybe I could bring it up with me lol

hope i shed some light on your question, i had to do much searching to find my own answers so If i ever get some $$ I will finish my build, but alas my build budget quickly became a diaper budget, sad yes but that's life...oh yeah did i mention not to be like me? well yeah don't lol :D

[batorr]

I've talked with about 4 people at shows who have converted their RS's to turbos and they have all had engine problems. One guy went in depth telling me that a stock rs engine can't handle much boost. He ended up keeping the short block and putting wrx heads, fuel injectors (you'll need those too), and cams in it to make it run right. All in all the setup cost him about $5,000 and that was just for the engine.

[Xise]

forged internals are really the key to doing it right the first time, compression on stock RS pistons is like 10:1...waaaay to high for boost= boom. Heads from a wrx will help you pull more rpms, but will still eventually send a piston smashing into your valves if you keep the stock pistons...you really need the extra "meat" in the bottom end it is worth the $500 pistons to save $$ and a headache later on, shouldn't cost quite 5k, and you should need headwaork unless you are really trying to get high HP #s under high boost.

top end of the stock RS dohc or sohc is fine to use, bottom end is what is important as the heads can handle it pistons and rods are the weak point in the RS block. hell if you are going to only boost to 10 psi you can use stock sti pistons, they are good to about 350 hp before they have issues from what i am told.

people tend to get boost happy and 10 psi would eventually get boring for you too and you will want more, forged pistons can handle lots and lots of boost so it is really your choice how you want to go about it

[Seraphinwolf]

forged internals are really the key to doing it right the first time, compression on stock RS pistons is like 10:1...waaaay to high for boost= boom. Heads from a wrx will help you pull more rpms, but will still eventually send a piston smashing into your valves if you keep the stock pistons...you really need the extra "meat" in the bottom end it is worth the $500 pistons to save $$ and a headache later on, shouldn't cost quite 5k, and you should need headwaork unless you are really trying to get high HP #s under high boost.

top end of the stock RS dohc or sohc is fine to use, bottom end is what is important as the heads can handle it pistons and rods are the weak point in the RS block. hell if you are going to only boost to 10 psi you can use stock sti pistons, they are good to about 350 hp before they have issues from what i am told.

people tend to get boost happy and 10 psi would eventually get boring for you too and you will want more, forged pistons can handle lots and lots of boost so it is really your choice how you want to go about it
What he said. Frankly it's a better and safer and all together in the long run CHEAPER to just do a Ej205 or EJ255 swap.

[mdungelman]

and the obvious stuff;
-turbocharger (if you get forged internals get a td05 or 06 :devil: and you can burn wrxs)
-intercooler TMIC of FMIC
-emanage of some sort
-turbo timer
-entire exhaust system; turbo headers,upipe,downpipe,catback
-turbo inlet
-bov or bypass
-air intake

Why would you really need a turbo timer? For most, I think its just the fact that its neat to turn the key off, exit the car, and lock it before the car stops running.

[ValuePack]

i was told they were the only turbo single-port Subaru ever made :shrug:

any truth to that?

I'd give a nut that says most if not all the EJ22T Legacys were dual port...





... good thing I don't care about that nut.:)

[Seraphinwolf]

Dual port last I knew. Ask Justin. Since he just got one. Or ask any of the other turbo first gen Leggy owners.

[Seraphinwolf]

I need to pick Xise's brain more soon I think. A friend's L is one way or another gonna get a turbo.

[boxerturbo]

I owned a 93 legacy ss and it was dual port.

[Seraphinwolf]

I'm gonna get the itch to turbo the 2.5 that's supposed to "just to get the car on the road again." ... A FMIC and I already could be at Stg2...
:hide:

[legacygt]

I currently have a 2.5rs, I have had the engine rebuilt an all. Now im bored an complacent. What would I need for a turbo setup. Im not looking for a giant power house. Im just looking to add a turbo to my current setup, push less then 10psi.

Im doing it on a budget. I REFUSE to have a mcgyver setup. Im more so in the information gathering stage to find out what I would need.
It would be more cost efficeint to purchase an STI motor with turbo and acc, and swap the motors.