Welcome to the North American Subaru Impreza Owners Club Saturday March 30, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Subaru Models > Legacy Forum

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 10-21-2001, 09:47 PM   #1
JC
Scooby Guru
 
Member#: 692
Join Date: Dec 1999
Chapter/Region: SCIC
Vehicle:
2021 Tacoma TRD Pro
White

Default How can I make a GT as fast as an RS?

I'm looking to get a 97-99 2.5GT wagon. The problem is it's slow. What do I have to do to make it as fast as a stock GC8 RS? It'd like to keep it NA. I don't think this is too unreasonable, as the RS isn't a fast car.

JC
* Registered users of the site do not see these ads.
JC is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 10-21-2001, 10:01 PM   #2
janikphoto
Scooby Specialist
 
Member#: 10471
Join Date: Sep 2001
Chapter/Region: TXIC
Location: Dallas, TX
Vehicle:
2000 BMW Z3
sold Outback & ForesterXT

Default

well, the wagon isn't fast either, so it sounds like you've got what you want...


Actually, the wagons would be much nicer with more power. It sounds like a few thousand of those little green things we carry around in our wallets is what it will take. It will buy you some cobb tuning parts and other various pieces that will boost hp.
janikphoto is offline   Reply With Quote
Old 10-21-2001, 11:33 PM   #3
tora
Scooby Guru
 
Member#: 5851
Join Date: Apr 2001
Chapter/Region: VIC
Location: Vancouver
Vehicle:
17 Ford Escape SE
Blk

Default

You didn't really specify what type of speed you are looking for. As far as straight line speed, corner speed, 0-60, 1/4 mile...auto-x etc.
If you want it to handle as well, then a modest suspension upgrade- springs/shocks/sway bar should do the trick. If you want 1/4 mile speed then a good intake exhaust/cam shaft/ AFC upgrade might do the trick.
tora is offline   Reply With Quote
Old 10-21-2001, 11:56 PM   #4
Patrick Olsen
Scooby Guru
 
Member#: 120
Join Date: Jul 1999
Chapter/Region: AKIC
Location: Where the Navy sends me...
Vehicle:
1997 Legacy 2.5GT
1996 Impreza coupe

Default

Lose 300 pounds from the car. Your car will then be just as fast as an RS.

The drivetrain is identical in the two cars - same engine, same transmission, same gear ratios. The only difference is weight. So, strip the interior and replace the windows with Lexan and you'll be good to go.

Seriously, I don't think the 2.5GTs are all that much slower than the 2.5RSs. I took my '99 2.5GT to the strip once and ran around 16-flat, and I've seen plenty of Impreza drivers post the same times. Some run faster, into the high 15s, but it's not a huge difference. And I've hung right with my friends in their 2.5RSs as we race off an on-ramp onto the highway. The 2.5GT will feel slower because it's a bit more luxurious and hence quieter - without the audible feedback it feels like you're going slower.

Pat Olsen
'97 Legacy 2.5GT sedan
Patrick Olsen is offline   Reply With Quote
Old 10-22-2001, 12:20 AM   #5
JC
Scooby Guru
 
Member#: 692
Join Date: Dec 1999
Chapter/Region: SCIC
Vehicle:
2021 Tacoma TRD Pro
White

Default

I mean in straight line. What will it take to get mid 15s in the quarter? Who makes cams for the GT? Does anybody make an aluminum or CF hood for the Legacy?

JC
JC is offline   Reply With Quote
Old 10-22-2001, 02:32 AM   #6
Steve 2.5
Scooby Newbie
 
Member#: 1452
Join Date: May 2000
Location: Nevada Desert
Vehicle:
2002 Legacy GT Sedan
Silver

Post

Chain your car to the bumper of the RS.

You should be able to get well into the 15s with an intake, exhaust, underdrive pulley, lightened flywheel, fuel pressure riser, and AFC. Along with the weight reduction.

Any faster will require serious engine work. I think Cobb makes cams and cylinder heads for the phase II SOHC engine. I don't know if they make them for the DOHC 2.5L engine.

-Steve
Steve 2.5 is offline   Reply With Quote
Old 10-23-2001, 01:09 AM   #7
JC
Scooby Guru
 
Member#: 692
Join Date: Dec 1999
Chapter/Region: SCIC
Vehicle:
2021 Tacoma TRD Pro
White

Default

Hmmm, perhaps I need to re-think my decision.

JC
JC is offline   Reply With Quote
Old 10-23-2001, 02:01 PM   #8
MY99 2.5GT
Scooby Specialist
 
Member#: 5030
Join Date: Mar 2001
Chapter/Region: MAIC
Location: Martinsburg, WV, USA
Vehicle:
1999 Legacy 2.5GT
19 Audi RS3, 13 Armada

Default

If your looking to drag race the absolute best way to suprise the RSs would be a 50shot of nitrous.

Brad
MY99 2.5GT is offline   Reply With Quote
Old 10-23-2001, 03:11 PM   #9
sybir
Scooby Specialist
 
Member#: 4615
Join Date: Mar 2001
Chapter/Region: BAIC
Location: Don of the Wagon Mafia
Vehicle:
05 FXT/01 OB/97 OB
Yes.

Default

There are CF hoods out there, i think GTBguy had a line on them at one point.
the motor and drivelines are identical; Cobb makes camshafts for both DOHC and SOHC 2.5's. Any power mod for an RS except exhausts and CAI's will work exactly the same on a legacy, you've just got 300 more pounds. There are tons of exhausts available, and there are intakes out there, too...........

c'mon, man, come over to the dark side
sybir is offline   Reply With Quote
Old 10-23-2001, 06:14 PM   #10
JC
Scooby Guru
 
Member#: 692
Join Date: Dec 1999
Chapter/Region: SCIC
Vehicle:
2021 Tacoma TRD Pro
White

Default

You mean back over to the dark side, this would be my second Legacy. Are you sure Cobb makes cams for the DOHC? The aren't listed on their site. No nitrous either, well maybe, but I want it to be decently fast all the time.

JC
JC is offline   Reply With Quote
Old 10-23-2001, 07:59 PM   #11
Legacy GTR
Scooby Specialist
 
Member#: 9316
Join Date: Aug 2001
Location: Litchfield Park, AZ
Vehicle:
1997 Legacy GT
[email protected]

Default JC

Cobb does make cams for the DOHC. They are $800. pluss the stock ones. If you like JC i'll straight up trade you. Mine's a sedan, but it's got the extra weight.
Mike
Legacy GTR is offline   Reply With Quote
Old 10-23-2001, 08:01 PM   #12
Legacy GTR
Scooby Specialist
 
Member#: 9316
Join Date: Aug 2001
Location: Litchfield Park, AZ
Vehicle:
1997 Legacy GT
[email protected]

Default Forgot one thing

IIRC in 1997 the Legacy 2.5GT Wagon was called the "Outback"
Then in 98 they called the 2.5GT sedan (like mine) the"Outback Sedan"
Mike
Legacy GTR is offline   Reply With Quote
Old 10-23-2001, 08:39 PM   #13
Patrick Olsen
Scooby Guru
 
Member#: 120
Join Date: Jul 1999
Chapter/Region: AKIC
Location: Where the Navy sends me...
Vehicle:
1997 Legacy 2.5GT
1996 Impreza coupe

Default

No, there were "normal" Legacy and Legacy 2.5GT sedans and wagons from '97-99, and then there were the separate Legacy Outback wagons and (eventually - not sure what year) sedans.

Pat
Patrick Olsen is offline   Reply With Quote
Old 10-23-2001, 09:11 PM   #14
Jonathan
Scooby Guru
 
Member#: 4021
Join Date: Feb 2001
Chapter/Region: NESIC
Location: Natick, MA USA
Vehicle:
1999 Legacy GT Ltd
Quick Silver Metallic

Default

I think the SUS (Sport Utility Sedans) were first released into production as 1998 (1998 1/2 ?) models. So far they are no manual shift SUS vehicles, and they(Subaru) tend to equip these and the 'Outback' stationwagons with fairly soft and 'floaty' suspensions.

While I personally like the height of the SUS & Outback vehicles, there are basically NO performance suspension setups available.
Jonathan is offline   Reply With Quote
Old 10-23-2001, 10:23 PM   #15
Legacy GTR
Scooby Specialist
 
Member#: 9316
Join Date: Aug 2001
Location: Litchfield Park, AZ
Vehicle:
1997 Legacy GT
[email protected]

Default

my fault. Were there really no manuel Legacy GT sedans? I have seen ONE manuel outback (98).
Mike
yeah, my dad has an outback
Legacy GTR is offline   Reply With Quote
Old 10-24-2001, 12:36 AM   #16
monovich
Scooby Specialist
 
Member#: 8124
Join Date: Jul 2001
Location: Denver, Colorado
Vehicle:
1998 Old Grey Mule
Regacy Rype R

Default

Quote:
IIRC in 1997 the Legacy 2.5GT Wagon was called the "Outback" Then in 98 they called the 2.5GT sedan (like mine) the"Outback Sedan"
I totally don't get this. Am I the only one? the 2.5 GT has always been a completly seperate model from the outback.

what am I missing?

-S
monovich is offline   Reply With Quote
Old 10-24-2001, 08:30 AM   #17
Patrick Olsen
Scooby Guru
 
Member#: 120
Join Date: Jul 1999
Chapter/Region: AKIC
Location: Where the Navy sends me...
Vehicle:
1997 Legacy 2.5GT
1996 Impreza coupe

Default

Quote:
Originally posted by Legacy GTR:
Were there really no manuel [sic] Legacy GT sedans?
OK, let's try this again:
Quote:
So far there are no manual shift SUS vehicles
Quote:
No, there were "normal" Legacy and Legacy 2.5GT sedans and wagons from '97-99, and then there were the separate Legacy Outback wagons and ... sedans.
So, to summarize, the 2.5GT, in both wagon and sedan versions, is entirely separate from the Outback. There are both manual and automatic versions of the 2.5GT in both the sedan and wagon. I don't know about the Outback sedan (aka SUS), but I do know that there are manual Outback wagons - my office-mate has one.

"Are we clear?"
"Crystal, sir." name that movie for 5 bonus points

Pat
Patrick Olsen is offline   Reply With Quote
Old 10-24-2001, 09:32 AM   #18
HIHO
Scooby Specialist
 
Member#: 7624
Join Date: Jun 2001
Location: Hopefully on a nice single track.
Vehicle:
BD5; family sedan
that just wooped your ass

Default

"A Few Good Men"
HIHO is offline   Reply With Quote
Old 10-24-2001, 03:01 PM   #19
janikphoto
Scooby Specialist
 
Member#: 10471
Join Date: Sep 2001
Chapter/Region: TXIC
Location: Dallas, TX
Vehicle:
2000 BMW Z3
sold Outback & ForesterXT

Default

My outback wagon limited is a 5 speed. The only one on the lots in dallas at the time. Luckily, no one wanted it so I got a decent deal. Looked like it had been sitting for a while.
janikphoto is offline   Reply With Quote
Old 10-24-2001, 11:49 PM   #20
JC
Scooby Guru
 
Member#: 692
Join Date: Dec 1999
Chapter/Region: SCIC
Vehicle:
2021 Tacoma TRD Pro
White

Default

Sorry man, it MUST be a stick and I want a wagon. What are the advantages/disadvantages of the 2000+ over the older ones. Is the DOHC engine a much weaker power plant? I know there is no LSD, but that's not a huge concern for me at this point anyway. What's the weight difference like? Also, are the new ones less stiff due to the dual sunroof? A 12 sec Legacy wagon will be evil.

JC
JC is offline   Reply With Quote
Old 10-25-2001, 02:50 AM   #21
GTBGUY
Scooby Specialist
 
Member#: 2003
Join Date: Aug 2000
Chapter/Region: W. Canada
Location: Calgary, Alberta, Canada
Vehicle:
'99 BGP Legacy GT
'98 QS Legacy L (auto)

Default

JC - Well, you'd have to do lots of engine work to get 12s in an N/A Legacy GT wagon. I'd simply choose the DOHC design over the SOHC for one reason : Revs! With a Brullen equal length header unit + cat-back, gains of 21hp were registered on a SOHC RS w/o anyother power mods. (this was 21hp up from baseline). With a ECU/piggy back upgrade for fuel, ignition as well as intake and head/cam work, you should easily be able to make over 230hp @ flyhwheel. Add this with putting the wagon on a large diet, I can see farily good 1/4 mile times.
GTBGUY is offline   Reply With Quote
Old 10-25-2001, 12:53 PM   #22
subarurabbit
Scooby Guru
 
Member#: 4083
Join Date: Feb 2001
Chapter/Region: NESIC
Location: Reading, MA
Vehicle:
2018 OB 3.6R Limited
magentite gray

Default

ahh. Rice math.

Roger
subarurabbit is offline   Reply With Quote
Old 10-25-2001, 01:35 PM   #23
JC
Scooby Guru
 
Member#: 692
Join Date: Dec 1999
Chapter/Region: SCIC
Vehicle:
2021 Tacoma TRD Pro
White

Default

I intend to do an engine swap or turbo it when I graduate from college, that will be when 12s come. I can't see getting 12s out of an NA Legacy. I'm just concerned with having a slow car until then.

So, are you saying the DOHC engine has a higher redline? Anyone else car to comment about the DOHC vs SOHC thing? Do the DOHC Legacys have the bad MAF? Thanks for bearing with all my questions.

JC
JC is offline   Reply With Quote
Old 10-25-2001, 02:38 PM   #24
monovich
Scooby Specialist
 
Member#: 8124
Join Date: Jul 2001
Location: Denver, Colorado
Vehicle:
1998 Old Grey Mule
Regacy Rype R

Default

If I recall correctly, those 21hp gains were seen with a the headers+cat-back+CAI+pulley.

here's the link to where those numbers came from

a 12 sec. legacy would be next-to-impossible without some MASSIVE HP. The fastest WRX in the USA is only barely nudging 12 sec.

Of course, this doesn't discourage me from modding the heck out of my car . I'm just not building a drag-racing machine.

-S
monovich is offline   Reply With Quote
Old 10-25-2001, 02:48 PM   #25
GTBGUY
Scooby Specialist
 
Member#: 2003
Join Date: Aug 2000
Chapter/Region: W. Canada
Location: Calgary, Alberta, Canada
Vehicle:
'99 BGP Legacy GT
'98 QS Legacy L (auto)

Default

subarurabbit - funny thing you should say that. In anycase, you'll see shortly enough.

JC - Yes the DOHC design will allow for more power up top, the SOHC design runs short of breath very quicky. I'm in the process of bumping my redline up to 7200rpm (max stock valve train can handle). In anycase, headwork, cams, new hi-comp pistons etc will be necessary to get low 1/4 times. Weight is one big enemy, and if you're serious about drag, all metal that can be, will be displaced by CF. Windows w/ Lexan etc.. One large advantage the Legacy has over the Imprezas is better aero dynamics.

monovich - FYI, the gain was based upon the stock car having a "CAI" and lightweight pulley. The 21hp @ the ground gain was ontop of the baseline. The CAI wasn't even a CAI, just some ducting routed to the filter box.

My personal preference is not a 1/4 mile king, but a canyon carver It's much more full filling
GTBGUY is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Where in the country can you go as fast as you can? MikeyMike Alaskan Impreza Club Forum -- AKIC 26 08-17-2006 06:51 PM
I want to make my car as fast as a Mustang munkey123 Newbies & FAQs 39 07-30-2004 06:35 PM
Can 3K make my Stock 05 WRX as fast as a STI? eshtog General Community 18 06-29-2004 09:47 AM
How to make your WRX feel fast as hell...rent a Peugeot diesel wagon! gtguy Mid West Subaru Owners Club Forum -- MWSOC 3 06-30-2002 11:06 AM
Turbo RS is as fast as a motorcycle now!! ImprezaRS dot com Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 51 04-25-2001 12:32 AM

All times are GMT -4. The time now is 03:47 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.