Legacy upgrades

[test_drivers92]

ive got a '07 subaru legacy 2.5i. so, most likely ill be putting a k&n filter in it, but i was wondering and yes i know that there is a lagacy gt, but i was wondering if a turbo would be able to go into my car without doing an extreme amount of damage and and estimate of how much the turbocharger would cost.

[Seraphinwolf]

It can be done but the question is what do you want from the car? Tuning doesn't work like many other Subarus of those years. The NA's were designed to not get messed with. SHTBXR22 should chime in hopefully.
No a low boost turbo retrofit is doable easily, BUT the problem will be tuning and if you want to go farther than say 5lbs of boost.
Voltage clamp on the MAF, up and down pipes, turbo, FMU(fuel management unit) or an intercepter like an eManage(GReddy), and a few stock parts. Putting a stock turbo motor's short block in will be a good idea or putting new internals that are meant for a turbo car.
I'll throw up a link shortly that outlines doing it on an early Impreza cause it takes pretty much te same work.

[test_drivers92]

honestly i just want more power in my car because it seems and probably stating the obvious here like a granny car to me rather than what it could be.

[Seraphinwolf]

Much can be done with the NA to get a lot more responce out of it. Biggest things will be suspension! :up: SHTBXR22's 07' 2.5i before he traded it in for his 08' Spec B. Was a mean set up machine for sure!

[Xise]

do lots of research on this before taking the plunge, or you can spend lots of $$ on stuff you can't even use. Unless you want to do a lot of custom piping for you're exhaust jump on some legacy specific forums and find out if you need to swap out certain parts (i.e. crossmember/steering rack/swaybars) just for it to fit properly that way you can just swap out mostly stock parts and just bolt them on.

The most painless way to get more power quick and easy is to just swap one motor for another, more than likely to turbocharge a 2.5i the crossmember would need to be replaced or modified to allow the upipe to reach the turbo so you would need to remove or at least jack the motor up to do this....so swap or a homebrew turbo kit ...both are about the same ammount of work and in the end around the same $$. Just keep in mind a turbo setup will most likely require an entirely different exhaust system and can be costly...so either way expect to shell out a few grand

good luck to you though, I hope it all works out. I tried to collect parts for a homebrew but now and just going the swapped route

[boxer3maine]

honestly i just want more power in my car because it seems and probably stating the obvious here like a granny car to me rather than what it could be.

I see this written for as long as my time with subaru forums.

as the n/a boxer freak of 14 years on my own... the EJ does have a problem.

compression is written as high... this means it should get up and go.. it is everything subaru surrounding it. I have gone as far as hearing one of these fire very strong.. to blow its own plug hole.

don't bother with boost.

find the retards about the engine.. even EGR is a tragedy. the cats, the allowance of a sharper curve electronically to advance is the biggest ever.

I kn0w boxers, and I know better.. subaru is the slowest in the world.. with fat guts sitting there going for 200k miles of doing hardly anything.

I even fought with a subaru 3 main boxer...that is nearly impossible to fight with.

target subaru stuff. it is indeed their problem.

[Seraphinwolf]

Here we go again... :spin:



Anywho most cases best option is just sell the car and buy a turbo factory car or leave it alone.

[test_drivers92]

yea thats what im thinking at this point is just leave it be and eventually get a new car

[Seraphinwolf]

If it's auto or you don't mind auto you could trade in for a 3.0R. :hide:

[test_drivers92]

well ive got an auto right now and i want a manual but i need to learn first which is why i think i might get a motorcycle first to get the hang of shifting then get a manual car

[Seraphinwolf]

Yeah def don't mess with the car if it's auto. That 4eat I'd annoying...

[98Wagoon]

shut up, meg. a 4eat shall and will ALWAYS SHIFT FASTER THAN YOU.

all the crybabies who dont like 4eat's can swallow my unborn children because theres plenty of FXT's, OBXT's, and other cars that have 4 and 5 eats that will make many, many cars their *****. the whole "wah I hate auto's cuz they're auto's!" is ****ing annoying and based in sad lonely opinions.

argue. I know you will.

[subaru_crazy]

shut up, meg. a 4eat shall and will ALWAYS SHIFT FASTER THAN YOU.

all the crybabies who dont like 4eat's can swallow my unborn children because theres plenty of FXT's, OBXT's, and other cars that have 4 and 5 eats that will make many, many cars their *****. the whole "wah I hate auto's cuz they're auto's!" is ****ing annoying and based in sad lonely opinions.

argue. I know you will.
thank you same argument i have had remember the auto sti thread:lol:

[98Wagoon]

Im here for you, Ev!

and furthermore, if you had your transmission redone by IPT your 4eat would shift exponentially FASTER than any manual and AND ANNDD be as strong, if not stronger than ANY 6mt.

[Seraphinwolf]

Every choice in transmission is based on use. Picking a 6mt for drag racing is a bad choice. Picking a built 4eat over a manual for road course? Not gonna happen with a competent and informed driver. Auto for traffic commuter? ABSOLUTELY!

[Seraphinwolf]

Oh and 4eat is ultimate, and that's why you have two 5mt's for your project car swapping out the 4eat... :hide:



:smug:

[tehsbean]

Shift times do not a good transmission make.

Poor torque distribution, slow responses and an infuriating desire to constantly be in overdrive all the time every time, poor gearing due to missing an extra cog... I could go on.

Automatics do not suck as a rule, Subaru's automatics do.

inb4trolled.

[Seraphinwolf]

In stock form I'll agree, but really it'll cost you about $4k to have IPT in NJ to "fix" that problem. :rolleyes:

[tehsbean]

Just buy a sequential gearbox at that price.

[Seraphinwolf]

Exactly...

[98Wagoon]

:rofl:


find me a sequential for $4k


ps. 6speed swaps are in the $4k range, also. and can easily be more.














and Im going with a 5mt in my build because I want too. oh, and I got the entire thing for $1100..









also also my forester is, and still will be a 4eat.

[serioussubaru]

back to that turbo question.... how hard is it to replicate what arcadia did?

[Seraphinwolf]

Ask him...

[98Wagoon]

^ that.


something something buy a turbo, drill some holes, get some lines, find an interwarmer, make some pipes, sacrifice a puppy, bolt some stuff??????? profit

[test_drivers92]

you forgot cry in the feedle position alot during install

[Joe]

Here we go again... :spin:



Anywho most cases best option is just sell the car and buy a turbo factory car or leave it alone.


:potkettle:

Something something, H-6 wagon instead of new sti??

[Seraphinwolf]

Can't buy a manual H6 in the US or even a turbo H6 at all... If I wasn't emotionally attached to my 97' I'd have gotten the STi and eventually found an H6 under the hood some day.

But especially when the Legacy is involved where it's much more work to fine tune anything a turbo trade up is the way to go. Retrofitting s turbo on an NA Impreza is easier and at least tuneable past 04' and plenty of reasonable options on earlier model Imprezas.

[SCCNH]

Shift times do not a good transmission make.

Poor torque distribution, slow responses and an infuriating desire to constantly be in overdrive all the time every time, poor gearing due to missing an extra cog... I could go on.

Automatics do not suck as a rule, Subaru's automatics do.

inb4trolled.

Somebody hasn't been in a car with the 5EAT

[test_drivers92]

yea went to a subaru dealer and got an idea from the sales person of all people. What about instead of the turbo build, change that to a old or new 3.0/3.6L engine? would that still be about the same. cuz i would still stay auto and its still a legacy engine so it would most likely fit in my car ( i dont know much about cars so feel free correct me if im wrong) and im guessing it would be a hell of alot cheaper than the turbo build

[Seraphinwolf]

Negative. The 3.0L is a no go I'm afraid. The wiring is all different. If you want the 3.0L you'd be better to trade in for it.

[test_drivers92]

what about the 3.6L same thing?

[Seraphinwolf]

Even worse. It's not the motor bit the eletrical and ECU that is the problem. Even after you get past the physical issues, which aren't many, it's not feasible. Look into trading in or getting just a different car to work with if you don't want to stick with NA 2.5 that isn't tunable anyways.

[Seraphinwolf]

I hate being Dave, The Downer...

[test_drivers92]

k thanks and its no problem like i said before i dont know much about cars and i just come up with crazy ideas and have no idea if they are even feasible

[98Wagoon]

Negative. The 3.0L is a no go I'm afraid. The wiring is all different. If you want the 3.0L you'd be better to trade in for it.


yet its what yoar doing.... :spin:

[Joe]

yet its what yoar doing.... :spin:


Silly wagoon. he isn't doing a N/A swap. Its gonna be running a turbo the size of most 18 wheelers. Does not apply here.

[Seraphinwolf]

Plus I'm full standalone ECU and NOT in a legacy chassis that is a nightmare of wiring and immobilizer units. Ask SHTBXR22 how much he tried to work with his 2.5i before finally just trading in on a killer deal on his Spec B!

[98Wagoon]

he also didnt pull the wiring, do a merge, and run a new ecm etc for said engine.

a swap is a swap.

[Seraphinwolf]

Legacy's are a LOT harder to deal with that stuff.