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View Full Version : Building for Speed
ricochet 05-06-2008, 11:22 AM Building for Speed
Aka: How I stopped worrying and learned to love the build
By Ryan Douthit, Subiesport Magazine (http://www.subiesport.com)
Subaru’s Legacy GT is an often-overlooked performance sedan. Out of the box it has 75% of the performance of the STI, but without the racer looks that turns so many heads. Still, it has the potential to be fast – very fast. For those of us with growing families and professional careers it’s a car that lets us have our cake and eat it to.
Stock, the Legacy GT has a 243chp turbocharged motor that shares many components with the STI. The shortblock is identical. The heads and turbo are the most significant differences – along with only the STI getting the trick DCCD and 6-speed, unless you opt for the Spec B legacy, which does have six cogs. Better yet, unlike the current STI, you can get leather, a moonroof and body styling that doesn’t look like it was an afterthought. In my opinion, the 2007-08 Legacy is one of the better-looking cars on the road today: A trait not commonly associated with Subarus.
Of course, given my occupation, as the publisher of Subiesport Magazine, this car didn’t stay stock long. Shortly after break-in we started the first phase of changes in the “need for speed” category. This included a larger turbo, fatter top-mount intercooler and a Perrin turbo-back exhaust system. All the parts were tuned using an ECUTek reflash and netted a tidy 280whp.
http://www.drivingsports.com/blog/images/2008/05/05/lgtondyno_stg4.jpg
I ran that configuration for a good year and was pretty happy with the overall performance: the 18G Blouch/TDC Turbo spooled quickly and had enough scoot for the occasional track day or Time Attack race. The Achilles heel was the top end. Power came fast, but didn’t stick around, making long straight-aways on the track my nemesis. Also, in hot conditions, such as I faced at the 2007 Tuner Shootout in Nevada, the top-mount intercooler just couldn’t keep hot intake temperatures at bay.
Before we started on “Phase 2“ of this Legacy GT build, our technical editor Tim Bailey and I changed the engine management to a Cobb AccessPORT 2.0 (it wasn’t available for the car’s CANBUS system when we did Phase 1) and played around to see if we could break 300whp mark with the existing configuration. All indications were good, but pushing the tune with stock injectors and “trying some stuff” in an uncontrolled situation, followed by me flogging the car around our test course spelled disaster for piston #4: we broke a ring and smoking immediately followed.
In the tuning world the death of one engine often leads to the development of a newer, stronger mill to replace it. This project is no different. Out with the stock (busted) shortblock, and in with a brand-spankin’-new STI block with a special ingredient: Cosworth forged pistons. This was assembled for us by the guys at PDXTuning in Portland, Oregon.
While the motor was out, we finally installed some larger injectors (from our friends at Deatschwerks), slapped on a larger AVO 420 turbo (installed by Rallitek performance), and fitted a Perrin front-mount intercooler to help keep temperatures more consistent. The clutch was also fried, so in went an ACT heavy-duty clutch kit along with the ACT streetlite flywheel. If you’re keeping score, yes, not much of the original configuration remained when all was said and done.
For the tune, we took the car to Steve’s Pacific Import Auto (PIA) in Tacoma, Wash., where Tim Bailey (Subiesport Magazine's technical editor and owner of Surgeline tuning) was finally able to put together a proper tune on PIA’s Mustang dyno. End result? A safe 320 wheel-horsepower and 320 ft-lbs of torque running 92 octane fuel.
Unfortunately, I can’t give you all the facts about this new build, since it is an ongoing project car for Subiesport Magazine (subscribe now! (http://secure.mediaspigot.com/subiesport/start.php)), and is scheduled to appear in an upcoming issue -- we have to keep some morsels for the magazine. But I can say this: It’s fast, but not fast enough. Certainly faster than any stock STI, but that’s not what I want. I don’t think I’ll be happy with this setup until we hit or surpass a safe 350whp, which will require some more changes.
The fact that we’re not done yet is okay by me. In many ways, testing all these different setups is more fun than the destination itself. Stay tuned, as the adventure continues.
###
You can read more about this project (prior to blowing the motor) in the current issue (http://digital.subiesport.com/nxtbooks/mediaspigot/subiesport_20080405/index.php?startid=80) (Issue #21) of Subiesport Magazine, now available at Barnes & Noble, Borders, Hastings, Chapters and other fine booksellers. You can also get it here (http://www.carzines.com/sufe205.html).
hutru01 05-06-2008, 11:34 AM subscribed
QuikWgn 05-06-2008, 11:36 AM Definitely looking forward to reading the stage 2 buildup. I've been thinking about the same thing as it applies to an earlier MY Legacy.
Yello_Rex 05-06-2008, 11:41 AM wow right on. lots of love for the leggy. cant wait to read the entire build write-up
hutru01 05-06-2008, 11:46 AM With a FMIC and AVO420 (with all necessary upgrades), you will easily hit 350 whp.
Looks like an awesome build, cant wait to read about it in whatever issue it is released in. :)
ricochet 05-06-2008, 12:24 PM Looks like an awesome build, cant wait to read about it in whatever issue it is released in. :)
The end-to-end "phase 2" (a Stage 3 or 4 build depending on your views) is scheduled to be in the next issue: June/July #21. We're working to make it as detailed as possible.
Ryan Douthit, Publisher
Subiesport Magazine
http://www.subiesport.com
Suby_05 05-06-2008, 12:28 PM Test drove the Spec B Legacy the other day, fell in love with it!!
Han'sGT 05-06-2008, 12:33 PM LGT FTW!
Oh, I'm biased.
02REX4LIFE 05-06-2008, 12:36 PM jealous.....
RS Guy1513 05-06-2008, 12:42 PM jealous.....
me too :( wish i had the cabbage to get my hands on an LGT
ryanesp1000 05-06-2008, 12:44 PM definitely anticipating more...
ADirtyLegacy 05-06-2008, 01:04 PM LGT FTW!
Oh, I'm biased.
what he said!!
Kenda
srgdrum 05-06-2008, 01:09 PM Nice. Looking forward to reading more.
NorCalSubie07 05-06-2008, 01:10 PM can't wait til stage two, i love legacy's
07otleSTi 05-06-2008, 01:22 PM nice read, very catching, or maybe it was the legacy, whos know =D
-Simon
Ralliart4 05-06-2008, 01:51 PM Brilliant article. Do you mind if I attach this to our local forum?
J. Anderson
- Wheelsjamaica.com
ricochet 05-06-2008, 02:02 PM Brilliant article. Do you mind if I attach this to our local forum?
J. Anderson
- Wheelsjamaica.com
Go ahead and link. If you want to copy-paste the article, you need to keep the URL references and post it in its entirety (including title and byline)
bsmitty 05-06-2008, 02:26 PM I was at PIA one of the days the Subiesport guys were there & doing tuning. Ah yeah!
hutru01 05-06-2008, 02:43 PM LGT FTW!
Oh, I'm biased.
+1 ;)
Smonkey 05-06-2008, 02:46 PM Dr. Strangelove, best movie ever!
MeanEditor 05-06-2008, 02:49 PM With a FMIC and AVO420 (with all necessary upgrades), you will easily hit 350 whp.
On what dyno is the question. According to Tim, the turbo is pretty much maxed out where we have it. At 21 lbs of boost the car made only 5 more hp and tq than it did at 18-19psi.
AVOturboworld 05-06-2008, 03:44 PM It's not the turbocharger that's maxed out, there is a bottleneck in the system somewhere. The AVO420 4-5 hotside is good for up to 500hp of flow. If it's only making 5 more hp with an additional 2psi of boost, that points to a restriction in the overall system.
Cheers,
Paul Hansen
www.avoturboworld.com
Porsche914boxer4 05-06-2008, 03:52 PM subscrizzled
tikbhoy 05-06-2008, 03:59 PM LGT FTW!
Oh, I'm biased.
:devil:
what he said x2
SubieChik 05-06-2008, 04:15 PM LGT FTW!
Oh, I'm biased.
+1 ;)
+2 :lol:
ricochet 05-06-2008, 04:25 PM Added the important point to the article that we were tuning with 92 octane fuel.
blkwgn 05-06-2008, 04:47 PM Precious bodily fluids Mandrake
Speed is the essence of life.
SubieChik 05-06-2008, 04:59 PM In my opinion, the 2007-08 Legacy is one of the better-looking cars (http://forums.nasioc.com/forums/showthread.php?t=1510574#) on the road today: A trait not commonly associated with Subarus.
Why only 07-08?? :lol: 05-07 all the look the exact same (minus the interior).
MaddSubieLove 05-06-2008, 05:10 PM I'm absolutely dieing to buy a LGT! Wish I had the money to pick one up and tune it!! Good luck with the build!!
superhawk44 05-06-2008, 05:14 PM In there.
Htay9500 05-06-2008, 06:13 PM the legacy is definetly on my top list as 1st car...
greenshoes3 05-06-2008, 06:25 PM damn. Impressive. Makes me proud to be a PIA customer, they do legit work for sure!
jim1969 05-06-2008, 06:25 PM subscribed.
blkwgn 05-06-2008, 06:47 PM Nobody got the Dr. Stranglove out of the article title but me.
Come on you all are missing one of the ultimate classics!
__raj 05-06-2008, 07:11 PM Interesting to read the potential.
I feel lucky my then pregnant wife picked the 2005 Legacy GT 5mt wagon as our family truckster. It works well for our two little ones.
skateboy16 05-06-2008, 07:42 PM look pretty cool. i really like this style of legacy....where i used to live my roomie has an '06 325xi, but the lady
that lived across had a newer, like this style leg gt, both in black, and i kinda liked hers better, at least the looks i mean. i'll have to stay tuned (pun???)......can't wait for my next subiesport mag :)
05gtlimited300 05-06-2008, 08:26 PM With a FMIC and AVO420 (with all necessary upgrades), you will easily hit 350 whp.
the 420 will fall short of the 350whp mark on 91oct.
craig007 05-06-2008, 09:40 PM I think the name says it all. Very nice cars, all around. I appreciate them more and more every time one rolls past me.
unclemat 05-06-2008, 09:56 PM LGT ftw
LGT wagon ftw^2
A Legacy love fest on nasioc, ain't it sweet. SOA, bring back the LGT wagon.
SubieChik 05-06-2008, 10:27 PM A Legacy love fest on nasioc, ain't it sweet. SOA, bring back the LGT wagon.
And bring over the Spec B Tuned by STI :banana:
subie41ife 05-06-2008, 10:42 PM Nice. Looking forward to reading more.
x2!!!:banana:
Aspenbullet 05-06-2008, 11:59 PM I've been really tempted to sell my 02 WRX and get a LGT...fell in love with the LGT the moment I saw it.
tikbhoy 05-07-2008, 01:04 AM i wish there was still a legacy wagon, the outback is not my taste
misterwaterfallin 05-07-2008, 01:14 AM damn. Impressive. Makes me proud to be a PIA customer, they do legit work for sure!
PIA all the way. I recognized the dyno when i saw the pic and was like, hey, my cars been on that haha
mugenXP 05-07-2008, 02:42 AM any word on the tranny holding?
jakesurfin 05-07-2008, 07:44 AM If i could build a time machine:rolleyes: I would have waited and bought a Spec B........:furious:
ricochet 05-07-2008, 12:33 PM any word on the tranny holding?
No tranny issues so far, and we don't expect to have any. It's a pretty strong unit.
Destined2race 05-07-2008, 02:20 PM love the project, i think im gonna upgrade to the legacy once i wanna sell my wrx wagon. I wish mine had a moonroof....
mugenXP 05-07-2008, 02:57 PM No tranny issues so far, and we don't expect to have any. It's a pretty strong unit.
aren't they the same as the 06-07 wrx's except with a diff final drive?
sportwagon 05-07-2008, 03:16 PM just subcribed to subiesport magazine (2 years)... which I've been meaning to do anyway...
jdreisinger 05-07-2008, 04:37 PM looks awesome! I really want an LGT... wish i had the $$$ :(
lgtoncoke 05-07-2008, 06:33 PM This is why i LOVE my legacy gt wagon
RonJitsu 05-07-2008, 09:46 PM Also just subscribed
greenman 05-07-2008, 11:21 PM Subscribed!!
rs2.5-3.0 05-08-2008, 12:40 AM ( (( ((( s_u_b_s_c_r_i_b_e_d ))) )) )
With a FMIC and AVO420 (with all necessary upgrades), you will easily hit 350 whp.
With meth?
On what dyno? Got a link?
It's not the turbocharger that's maxed out, there is a bottleneck in the system somewhere. The AVO420 4-5 hotside is good for up to 500hp of flow. If it's only making 5 more hp with an additional 2psi of boost, that points to a restriction in the overall system.
But how much is the 420's compressor good for? IIRC, the compressor map ends at about 45 lb/min, which suggests 450chp under ideal conditions. Assuming 10% less since it's in a Subaru, and 20% more lost to the drivetrain, 320whp seems about right.
scoopman 05-08-2008, 03:28 PM Veeerrrryyyy eeeenteresteeeng... especially as I should be getting my AVO420 delivered next week for my 05 LGT wagon. :D
Surgeline Tuning 05-08-2008, 05:35 PM It's not the turbocharger that's maxed out, there is a bottleneck in the system somewhere. The AVO420 4-5 hotside is good for up to 500hp of flow. If it's only making 5 more hp with an additional 2psi of boost, that points to a restriction in the overall system.
Cheers,
Paul Hansen
www.avoturboworld.com (http://www.avoturboworld.com)
Is this the same turbine housing used on the AVO 500?
rs6er 05-08-2008, 07:32 PM You guys should come visit us at LegacyGT.com. You'll see some sweet rides.
AVOturboworld 05-08-2008, 07:52 PM Is this the same turbine housing used on the AVO 500?
The AVO500 has a larger compressor housing, but the 420/450/500 share the 4-5 exhaust housing.
Cheers,
Paul Hansen
www.avoturboworld.com
kpatler 05-08-2008, 10:22 PM looking forward to seeing how this build progresses. keep us all updated...and we'll all keep drooling.
Aussie Dave 05-08-2008, 11:06 PM great article and def subscribed now, I went from MY06 WRX STI to MY07 Legacy/Liberty GT Tuned by sti and could not be happier with the trade a year later. Tuning options have until now been the issue for us Lib owners here in Australia due to CANBUS, however Ecutek have released the flash for this now. I wish we could get Cobb Accessport for Libs here.
homegrwn97 05-08-2008, 11:35 PM Sweet. Its good to see that the Legacy is gettin some Love and props that it usually doesnt get. I love my Leggy!
Surgeline Tuning 05-08-2008, 11:57 PM The AVO500 has a larger compressor housing, but the 420/450/500 share the 4-5 exhaust housing.
Cheers,
Paul Hansen
www.avoturboworld.com (http://www.avoturboworld.com)
This largish turbine may explain why this turbo spools so slowly. Full boost at 4100 is not ideal for a turbo that's good for 320 whp on pump fuel. In this regard i think this relatively large turbine housing is a mismatch for the smallish compressor. While it is true that backpressure caused by a smaller turbine will reduce flow at higher RMPs, the advantage of low back pressure turbine housing does not, by itself, allow extra power.
If this compressor were mated to a smaller exhaust housing there would be a world of difference in spool up and likely little effect on top end.
Are there other dyno plots, or data logs out there to suggest that the performance of this turbo on this car is unusual?
Regards
Tim
batman 2.5i 05-09-2008, 01:46 AM PIA all the way!!!! great guys! wouldn't take my subie to anyone else!
dome24 05-09-2008, 03:17 AM heck yea, i love seeing lgt builds, i think its the best looking car on the road right now...
but i still love my gc and bugeye, the LGT is the logical next step :devil:
mpggomd 05-09-2008, 01:23 PM project looks good...look forward to future news and the new Subiesport!
Subaruski420 05-11-2008, 01:53 PM i'll be switching from my GC to a legacy soon so i'll have to keep watching this build. very impressive.
KeyserSoze 05-11-2008, 03:35 PM You guys should come visit us at LegacyGT.com. You'll see some sweet rides.
+1 :banana:
Lucky Loser 05-11-2008, 05:26 PM I <3 LGT wagons!!
ragehelsel 05-11-2008, 05:51 PM I currently have an 02 WRX with 115000 on the odo, and I'm thinking of getting a new legacy next year. I have it down to 2---
Spec B. and the 3.0R. Now, i know the obvious differences, such as manual vs automatic.
A few questions
#1 Any good tuning options for the 3.0 motor. This one intrests me since I can opt to run 87 octane instead of premium.
#2 I have a dog with short hair who sheds all the time. The Alcantra leather in the Spec B, and the STI Limited as well looks a little like suede. Anyone who has those seats, and a dog, does dog hair stick to it, or does it brush right off like regular leather?
Thanks,
Rage Helsel
MeanEditor 05-11-2008, 06:58 PM Rage:
If you are wanting to get into tuning, I would go for the Spec B or just a Legacy GT if you are not wedded to the 6-speed and Alcantara, which is very much like suede, just synthetic. As far as I know there aren't any real tuning options for the 3.0-liter six like an accessport or headers, exhaust etc. I am sure there are things you COULD do, like a UTEC Delta and custom fab stuff etc. but in the end, you will make more power more easliy with the turbo 4 banger. And if you were going to tune your engine, you would still want to use premium grade fuels over 87, which is not so good for making power. If you are going to swim in the tuning pool, premium fuel is what we fill the pool with.
ih8vtec13 05-11-2008, 09:49 PM Its great to se the leggy gettin some love, I love how underestimated they are by other drivers and how it stays under the radar.
OHGEESQUARES2499 05-12-2008, 01:21 AM go manual i ve tested the paddle shifting auto and it lags sometimes up to a second , as far as dog hair your hit either way becuase even with normal leather it always ends up staying somewhere i know how it is i have two. try a cheap car seat or a towel ,or put em in a little cage still using the towel to avoid the hair
Aussie Dave 05-12-2008, 03:34 AM Its great to se the leggy gettin some love, I love how underestimated they are by other drivers and how it stays under the radar.
Loving this thread! The Legacy gets a bit more attention over here in Australia these days. Here's a couple of pics of my sleeper
http://i77.photobucket.com/albums/j60/Aussiedave_2006/MY07%20Liberty%20GTB%20STI/RexpoGTBSTI.jpg
http://i77.photobucket.com/albums/j60/Aussiedave_2006/MY07%20Liberty%20GTB%20STI/MY08GT014.jpg
ragehelsel 05-12-2008, 04:55 PM Haha... wish he would fit in a cage! He's like 60lbs. I dont mind the hair on the floor, i know how it is on my leather, im specificly curious about someone who has actualy owned the alcantra like in the STI or the Spec B.
Aussie Dave 05-12-2008, 07:43 PM Well my tuned by sti has the alcantra seats and have a doberman (large dog, short hair) and their is no way he is riding in my car full stop. We take the wifes VW Golf when he has to go for a ride.
http://i77.photobucket.com/albums/j60/Aussiedave_2006/MY07%20Liberty%20GTB%20STI/LiboLeather015.jpg
http://i77.photobucket.com/albums/j60/Aussiedave_2006/MY07%20Liberty%20GTB%20STI/LiboLeather016.jpg
http://i77.photobucket.com/albums/j60/Aussiedave_2006/MY07%20Liberty%20GTB%20STI/LiboLeather010.jpg
2ndGearFling 05-12-2008, 11:21 PM Its interesting that the same thing happened to your Bailey tuned car that happened to white out's car.
subarubloke 05-13-2008, 04:48 AM Building for Speed
Aka: How I stopped worrying and learned to love the build
By Ryan Douthit, Subiesport Magazine (http://www.subiesport.com)
http://www.drivingsports.com/blog/images/2008/05/05/lgtondyno_stg4.jpg
Just out of curiosity whats rims are those by the way
hutru01 05-13-2008, 08:26 AM This is why i LOVE my legacy gt wagon
+10000
MeanEditor 05-13-2008, 01:53 PM Just out of curiosity whats rims are those by the way
Prodrive GC06
BoozeRS05 05-13-2008, 06:21 PM There isn't another car I'd rather have 'brand new' under $35k, seriously..
<---- :banana:
joserpm 05-13-2008, 06:28 PM I somehow ALWAYS KNEW that this car was going to be the 'overlooked performance car' in Subaru's line. When I am ready to trade my 07 WRX, I am definitely keeping an eye on the Legacy.
Too bag they screwed it all up...and cut the manual LGT wagon :(. Freakin' lazy Americans!!!
Beanboy 05-14-2008, 10:52 AM Glad I got the 5MT wagon when I did. Also great being at 320+WHP and being quiet at a light. Dual mufflers do have some benefit. Definitely can still fade into the Subaru background noise here in New England, which is great...unlike the STI or to a lesser extent, the WRX.
hutru01 05-14-2008, 01:42 PM ^ I had to switch back to stock dual cans.....Greddy EVO2 got me two tickets in VA.
What turbo you running?
Beanboy 05-14-2008, 04:53 PM One of the reasons CBE is still stock. Will work on y-pipe at somepoint. FP 20G
EquinnoxX 05-14-2008, 07:25 PM Go LEGACY Go!!!
Been following the project LGT build from the beginning ... good to see its progressing after that hiccup. Looking forward to the issue!:banana:
cquirki 05-14-2008, 08:15 PM heads
MartinSTi05 05-15-2008, 10:05 AM In the words of Borat "Very nice!":banana:
What wheels are on that car BTW?
Loving this thread! The Legacy gets a bit more attention over here in Australia these days. Here's a couple of pics of my sleeper
http://i77.photobucket.com/albums/j60/Aussiedave_2006/MY07%20Liberty%20GTB%20STI/RexpoGTBSTI.jpg
http://i77.photobucket.com/albums/j60/Aussiedave_2006/MY07%20Liberty%20GTB%20STI/MY08GT014.jpg
unclemat 05-15-2008, 10:09 AM ^ Enkei STI wheels.
Phatstud 05-16-2008, 04:17 PM LGT will probably be my next car in a few year.
slylgt2k8 05-16-2008, 07:25 PM just got my 2k8 lgt in march...loving it...swapped out the suspension w/ tein basic...looks good and handle a little better too...anyone interested in the stock suspension? need more $ for upgrades...
superhawk44 05-16-2008, 08:15 PM Phatstud, where in TN? I visit Bristol every yr.
crazy owen 05-16-2008, 09:45 PM big fat pig
;)
ok, big fat FAST pig!
OrbitalEllipses 05-21-2008, 10:27 PM The LGT's grow on me more and more. When I'm ready to switch from an Impreza I'll try it.
hutru01 05-22-2008, 08:33 AM In Japan, the Legacy is the popular of the two. (S402 anyone?)
Subaruski420 05-22-2008, 11:35 AM just got my lgt yesterday!!!
Sub!eDr!ver 05-22-2008, 11:51 AM Congrats! You'll now be looking for excuses to go out driving... :banana:
mister_skinny 05-27-2008, 11:46 AM I want my girl to trade her Acura 2.2CL for a LGT! Of course it's so I can get to drive it! (Made her learn to drive stick on an easier car) ;)
superhawk44 05-27-2008, 07:01 PM Thats no lie the stock Legacy clutch blows.
phantomwhite 05-31-2008, 04:15 AM This was always a first of scoobies that got my attention, but the fact that legacies aren't built in japan startled me, i mean it's so jap, very simplistic with electronics and interior, high qual materials used, and a very solid feel, but the fact that this is built in the States kinda made me wonder if it's as reliable as jap made cars (aka JDM). I mean i really love this car, i even test drove the spec b '08 and a impreza wrx sti '08 and i like them both, i don't even really like the new impreza design, it's fugly, but it's made in japan, where the legacy is very pleasant to look at, or even addictive but isn't made in japan. Please let me know how this car holds up to its assemblage whereabouts. By the way, your scoobie looks awsome and sounds like something i'd do to it, always wanted to get one of these and drop an sti tuned boxer from the impreza. I like the jap 2.0 liter better though, very chaotic sounding and less nose heavy.
Building for Speed
Aka: How I stopped worrying and learned to love the build
By Ryan Douthit, Subiesport Magazine (http://www.subiesport.com)
Subaru’s Legacy GT is an often-overlooked performance sedan. Out of the box it has 75% of the performance of the STI, but without the racer looks that turns so many heads. Still, it has the potential to be fast – very fast. For those of us with growing families and professional careers it’s a car that lets us have our cake and eat it to.
Stock, the Legacy GT has a 243chp turbocharged motor that shares many components with the STI. The shortblock is identical. The heads and turbo are the most significant differences – along with only the STI getting the trick DCCD and 6-speed, unless you opt for the Spec B legacy, which does have six cogs. Better yet, unlike the current STI, you can get leather, a moonroof and body styling that doesn’t look like it was an afterthought. In my opinion, the 2007-08 Legacy is one of the better-looking cars on the road today: A trait not commonly associated with Subarus.
Of course, given my occupation, as the publisher of Subiesport Magazine, this car didn’t stay stock long. Shortly after break-in we started the first phase of changes in the “need for speed” category. This included a larger turbo, fatter top-mount intercooler and a Perrin turbo-back exhaust system. All the parts were tuned using an ECUTek reflash and netted a tidy 280whp.
http://www.drivingsports.com/blog/images/2008/05/05/lgtondyno_stg4.jpg
I ran that configuration for a good year and was pretty happy with the overall performance: the 18G Blouch/TDC Turbo spooled quickly and had enough scoot for the occasional track day or Time Attack race. The Achilles heel was the top end. Power came fast, but didn’t stick around, making long straight-aways on the track my nemesis. Also, in hot conditions, such as I faced at the 2007 Tuner Shootout in Nevada, the top-mount intercooler just couldn’t keep hot intake temperatures at bay.
Before we started on “Phase 2“ of this Legacy GT build, our technical editor Tim Bailey and I changed the engine management to a Cobb AccessPORT 2.0 (it wasn’t available for the car’s CANBUS system when we did Phase 1) and played around to see if we could break 300whp mark with the existing configuration. All indications were good, but pushing the tune with stock injectors and “trying some stuff” in an uncontrolled situation, followed by me flogging the car around our test course spelled disaster for piston #4: we broke a ring and smoking immediately followed.
In the tuning world the death of one engine often leads to the development of a newer, stronger mill to replace it. This project is no different. Out with the stock (busted) shortblock, and in with a brand-spankin’-new STI block with a special ingredient: Cosworth forged pistons. This was assembled for us by the guys at PDXTuning in Portland, Oregon.
While the motor was out, we finally installed some larger injectors (from our friends at Deatschwerks), slapped on a larger AVO 420 turbo (installed by Rallitek performance), and fitted a Perrin front-mount intercooler to help keep temperatures more consistent. The clutch was also fried, so in went an ACT heavy-duty clutch kit along with the ACT streetlite flywheel. If you’re keeping score, yes, not much of the original configuration remained when all was said and done.
For the tune, we took the car to Steve’s Pacific Import Auto (PIA) in Tacoma, Wash., where Tim Bailey (Subiesport Magazine's technical editor and owner of Surgeline tuning) was finally able to put together a proper tune on PIA’s Mustang dyno. End result? A safe 320 wheel-horsepower and 320 ft-lbs of torque running 92 octane fuel.
Unfortunately, I can’t give you all the facts about this new build, since it is an ongoing project car for Subiesport Magazine (subscribe now! (http://secure.mediaspigot.com/subiesport/start.php)), and is scheduled to appear in an upcoming issue -- we have to keep some morsels for the magazine. But I can say this: It’s fast, but not fast enough. Certainly faster than any stock STI, but that’s not what I want. I don’t think I’ll be happy with this setup until we hit or surpass a safe 350whp, which will require some more changes.
The fact that we’re not done yet is okay by me. In many ways, testing all these different setups is more fun than the destination itself. Stay tuned, as the adventure continues.
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You can read more about this project (prior to blowing the motor) in the current issue (http://digital.subiesport.com/nxtbooks/mediaspigot/subiesport_20080405/index.php?startid=80) (Issue #21) of Subiesport Magazine, now available at Barnes & Noble, Borders, Hastings, Chapters and other fine booksellers. You can also get it here (http://www.carzines.com/sufe205.html).
Subaruski420 05-31-2008, 10:39 AM my legacy dash makes all types of squeaky and creaky noises. after further review on legacygt.com i guess its a common problem....
superhawk44 05-31-2008, 11:32 AM Very common, mine sucks ass. But i still love my car.
VoltesV 06-01-2008, 09:33 AM subscribed :banana:
Brisky 06-01-2008, 04:51 PM This was always a first of scoobies that got my attention, but the fact that legacies aren't built in japan startled me, i mean it's so jap, very simplistic with electronics and interior, high qual materials used, and a very solid feel, but the fact that this is built in the States kinda made me wonder if it's as reliable as jap made cars (aka JDM). I mean i really love this car, i even test drove the spec b '08 and a impreza wrx sti '08 and i like them both, i don't even really like the new impreza design, it's fugly, but it's made in japan, where the legacy is very pleasant to look at, or even addictive but isn't made in japan. Please let me know how this car holds up to its assemblage whereabouts. By the way, your scoobie looks awesome and sounds like something i'd do to it, always wanted to get one of these and drop an sti tuned boxer from the impreza. I like the jap 2.0 liter better though, very chaotic sounding and less nose heavy.
I had no idea that they were made in the U.S.
Maybe its apart of the Toyota partnership since Toyota assembles a lot of their cars int he U.S. too.
superhawk44 06-01-2008, 10:30 PM They were before that happened, started with the 05 I believe.
Sub!eDr!ver 06-01-2008, 11:19 PM No, my '98 Legacy was built in Indiana. That plant has been running for quite some time.
It used to be shared with Isuzu, hence SIA - Subaru Isuzu Automotive.
When Isuzu backed out of the US market, Subaru took full ownership, and it became Subaru of Indiana Automotive.
Sub!eDr!ver 06-01-2008, 11:21 PM Okay, here's a history page - groundbreaking in 1987, plant started operations in 1989:
http://www.subaru-sia.com/company/history/index.html
History of Subaru of Indiana Automotive
The history of SUBARU of INDIANA AUTOMOTIVE, INC. is unique to the automotive industry. It's origins date back many decades and involve the dedication of numerous individuals and companies. Originally, SIA was a joint venture between Fuji Heavy Industries Ltd. and Isuzu Motors Limited. This venture was formed in March of 1987. At the beginning of 2003, Fuji Heavy Industries Ltd. became the sole owner of SIA. SIA Associates now build the Subaru Legacy, Outback, and Tribeca along with the Toyota Camry.
Fuji Heavy Industries Ltd.
At the very beginning, Chikuhei Nakajima established the Aircraft Research Laboratory in Japan in 1917. From 1945 to roughly 1953, the company separated into twelve smaller companies with divisions in automobile, aircraft, rolling stock (train, diesel locomotive, ect.), industrial engine, and bus/coach production.
In 1953 Fuji Heavy Industries Ltd. (FHI) was established from five of the leading companies remaining after the division, and from that corporation Subaru arose. "Subaru" is a Japanese word for Pleides (Plee-a-dees), a constellation widely known since ancient times, which is used as Subaru's logo to symbolize unity and purpose.
The company named Subaru first began manufacturing the Rabbit motor scooter. Then, in 1958, FHI decided to enter the automobile market with the Subaru 360. The automobile's advanced features won Subaru a lasting place in automotive history.
Now, FHI leads the way for automotive advances, including the first mass produced all-wheel drive car, the horizontally opposed boxer engine, and the innovative Subaru Intelligent Drive system.
SUBARU of INDIANA AUTOMOTIVE, INC.
In May 1986 FHI and Isuzu agreed to a joint venture to establish a manufacturing plant in the United States. Of the many cities originally explored in the United States, 13 sites were eventually chosen for further consideration in seven states, including the state of Indiana. Hoosier pride was very evident in Indiana as cities competed to provide local access to auto parts industries, present and future. In December of 1986 Lafayette was selected as the site for the plant and Subaru-Isuzu Automotive was incorporated in March of 1987 as the managing company for this site. Ground was broken for the SIA plant in May, 1987. The 2.3 million-square foot facility performs all integrated operations from stamping to final assembly. The annual phase 1 production of 60,000 Subaru Legacys and 60,000 Isuzu pickups and Rodeos began on September 11, 1989. The plant was officially dedicated on October 16, 1989 with a week long grand opening ceremony. In January 2003, SIA became Subaru of Indiana Automotive, Inc. signifying the sole ownership by Fuji Heavy Industries Ltd. SIA discontinued production of Isuzu vehicles on July 23, 2004, and began to build the Toyota Camry on February 28, 2007.
pdx Nick 05 LGT 06-06-2008, 06:16 PM my legacy dash makes all types of squeaky and creaky noises. after further review on legacygt.com i guess its a common problem....
yeah my dash creaks all the time. Stock clutch went out at 36,000, bought the car used though and drove it a thousand miles before it went out so I'm guessing the guy before me was hard on it. Also had some problems with the stock injectors but I heard that common as well. Its ok though just easier excuses to upgrade :)
Subaruski420 06-06-2008, 09:57 PM yeah my dash creaks all the time. Stock clutch went out at 36,000, bought the car used though and drove it a thousand miles before it went out so I'm guessing the guy before me was hard on it. Also had some problems with the stock injectors but I heard that common as well. Its ok though just easier excuses to upgrade :)
what types of problems with the injectors? I have been getting a bit of hesitation also...
Kiwi Fella 06-14-2008, 02:10 AM Was that a legacy AVO 420 or a WRX AVO 420?
If it was a legacy how did you make the FMIC fit?
Yamasxv 07-21-2008, 08:23 PM That legacy is soo sweet 350 whp? damn thats sick haha:lol:
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