Perth-WRX.com  

Go Back   Perth-WRX.com > General WRXing > General Subaru Discussion
Register Diddy Kart ArticlesAll AlbumsBlogs FAQ Members List Calendar Search Today's Posts Mark Forums Read

ULTREX
Welcome to Perth-WRX, click here to register!

Like Tree5Likes

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 05-04-2014, 01:43 PM
Scoobie Noobie
Member
 
Join Date: Nov 2013
Location: Warrnambool
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
neo__04 at standard level
Default 1997 (MY98) WRX - Mods, Where to start, What to buy

Hey all,

Got myself a 1997 (MY98) WRX.
First WRX and first turbo car.

Bought it as a weekend car and an ongoing project.

Im a little confused on what mods to do, and what order.
I'm going to start accumulating parts, then fit it all and get it tuned.

Im planning on what seems to be a reasonably normal upgrade.
200 odd kw at the wheels.

From what ive read consists of:
STI tmic
vf34 turbo
walbro fuel pump
turbo back 3" exhaust
new ecu
tune

A few questions,
What year sti tmic do you get to fit the MY98?
Does the my98 have a cat in the uppipe? If so, i replace that right?
What should i do with the intake? Pod filter? K&N in airbox?
Do i try and duct it through into the wheel arch for cooler air?
Do i run a silicon intake pipe once i get the sti tmic?
Do i need to upgrade injectors if i dont go over 200kw?

Also if i could get some idea of rough costs of the parts that would be awesome.

Thanks guys, seems to be a lot of knowledgeable ppl here!
Reply With Quote
  #2  
Old 05-04-2014, 04:56 PM
Jezza's Avatar
Flat Four Father
Member
 
Join Date: Oct 2008
Location: Swan Valley
Posts: 2,306
Thanks: 20
Thanked 33 Times in 25 Posts
Jezza at standard level
Default

Quote:
Originally Posted by neo__04 View Post
A few questions,
What year sti tmic do you get to fit the MY98?
Does the my98 have a cat in the uppipe? If so, i replace that right?
What should i do with the intake? Pod filter? K&N in airbox?
Do i try and duct it through into the wheel arch for cooler air?
Do i run a silicon intake pipe once i get the sti tmic?
Do i need to upgrade injectors if i dont go over 200kw?

Also if i could get some idea of rough costs of the parts that would be awesome.
A GD sti tmic (01-07) will fit, but you will need to modify a few things to get it to fit. Something like a Process west tmic may be more convenient as they are pretty much bolt in. Expect to pay up to $1000 new

my98 doesnt have a cat in the up pipe...

the general consensus is that you dont need a CAI... it only makes a cool induction noise. Give the intake a 'resonectomy' and you should be right

you can max out the injectors and still make just under 290hp... provided they are yellow tops

everything else is your choice really
Reply With Quote
  #3  
Old 05-04-2014, 07:39 PM
astralex's Avatar
Subaru Tech Division
Member
 
Join Date: Jan 2007
Location: 20,000 Leagues Under the Sea
Posts: 1,661
Thanks: 12
Thanked 42 Times in 37 Posts
astralex knows their stuff
Send a message via MSN to astralex
Default

Jezza, are you sure later model (01~07) mounts for top mount are different to GC? I know I needed a different clutch master to curve around my Spec C' cooler, but I thought the mounts suited?
__________________
Air is for pussies.
Reply With Quote
  #4  
Old 05-04-2014, 08:58 PM
Rossco's Avatar
Perth WRX Old Skool Cool Dude
Member
 
Join Date: Apr 2007
Location: Perf, NOR
Posts: 5,515
Blog Entries: 11
Thanks: 54
Thanked 100 Times in 79 Posts
Rossco is a guruRossco is a guru
Send a message via MSN to Rossco
Default

My98 won't have 440cc yellow top injectors.
__________________
Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85
Reply With Quote
  #5  
Old 06-04-2014, 12:32 AM
Pimpreza's Avatar
Flat Four Father
Member
 
Join Date: Nov 2006
Location: Slums of Warnbro.
Posts: 2,130
Thanks: 4
Thanked 32 Times in 31 Posts
Pimpreza at standard level
Default

200kw atw from an original 16yo EJ20 block? lotta money there so I hope you've got a big wallet or a really good job, you can expect one or all of these things to shit themselves continiously...... block, clutch, gearbox, axles etc etc, you'll really need bigger brakes unless you already have 4 pots, better off saving the money and waiting for a 99 2 door or 00 4 door STI or even better an 02 STI with Brembo's and a 6 speed and big top mount already fitted for less than you'll have to spend on your 98 WRX shitter.

EJ 207 with decent pistons new oil pump, water pump, belt kit, gasket kit, lets say $4000-6000
6 speed to stop your butter Aus 5 speed dying with decent clutch $4000-6000
Injectors 2nd hand $400-800
Turbo $1500new.
3" turbo back $600 rubbish to $2,000 recommended Butler
Top mount, brackets and new clutch master 2nd hand probably $450
Fitting, $3000-4000.
Computer 2nd hand $1500, every mod you make another $300-500 to re-tune.
Bigger brakes $600-1400
Then all the other bullshit like R180 rear end over 1k
So to add it all up, fuck your 98 off for 4k and buy a Bug Eye STI for $14,000 and save about 10k
__________________
Beaten up old 98 Gen 2 Liberty, 13.0, stock V3 STI running gear.
07 Transit motor home
69 VF & 70 VG Valiants needing full restoration
Yamaha Zooma 50cc rocket hopefully going with the Transit.

Last edited by Pimpreza; 06-04-2014 at 01:02 AM.
Reply With Quote
  #6  
Old 06-04-2014, 06:41 AM
Scoobie Noobie
Member
 
Join Date: Nov 2013
Location: Warrnambool
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
neo__04 at standard level
Default

Well it makes it hard to know what to do. Plenty of people running GC8's with stock gearboxes etc and seems to be fine.

What sort of power would be safe then to keep the engine and gearbox happy?

I wont be launching it or anything else that will stress things.
Reply With Quote
  #7  
Old 06-04-2014, 08:27 AM
Jezza's Avatar
Flat Four Father
Member
 
Join Date: Oct 2008
Location: Swan Valley
Posts: 2,306
Thanks: 20
Thanked 33 Times in 25 Posts
Jezza at standard level
Default 1997 (MY98) WRX - Mods, Where to start, What to buy

Don't worry about the numbers, just have fun with the thing.

When talking about mods, always ask yourself first;
1) what is my budget
2) what will I be using the car for

Then go from there...

Are you handy with a spanner?
Reply With Quote
  #8  
Old 06-04-2014, 08:45 AM
matto20v's Avatar
STI Master
Member
 
Join Date: Jul 2005
Location: Perth
Posts: 966
Thanks: 37
Thanked 35 Times in 32 Posts
matto20v at standard level
Default

Hold up,

Your WRX can receive a power boost without big bucks, just avoid setting yourself a kilowatt goal at this point because you'll only get a big shopping list of stuff thrown at you.

I upgraded my MY00 WRX without a power goal in mind, I was chasing just a nice upgrade. I went and met Neil at Maximum Motorsport, and he helped me put together a plan.

Step 1 was to upgrade fuel pump, exhaust, and turbo. The car transformed! It lit up! Cost about $1500 for parts and labour (I sourced some second hand parts to save money, eg: turbo)

Step 2 was to add an electronic boost controller. Boost was raised a few PSI, and holeyyfarrrrk the car boots!!!

I still giggle like a child when I give it a squirt. I have no clue how many kilowatts its making.

Some advice given here is right... the gearbox isn't all that strong, and your motor is getting a bit old now. So, my advice is not to set a kilowatt goal in mind, but to upgrade the engine a little, just as I have done, and see if you're happy with that.

If you're serious about upgrading, maybe pop into a Subuaru specialist workshop as I did, and let them put together a plan for you.
Patch, django and joshrx like this.
Reply With Quote
  #9  
Old 06-04-2014, 11:58 AM
Scoobie Noobie
Member
 
Join Date: Nov 2013
Location: Warrnambool
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
neo__04 at standard level
Default

Yeah not bad with a spanner, still learning, but i have plenty of mechanics at work to guide me.

Im basically planning exactly what was listed above. fuel pump, exhaust, turbo, ecu & tune to get started.

Go from there i guess
Reply With Quote
  #10  
Old 06-04-2014, 03:31 PM
Pimpreza's Avatar
Flat Four Father
Member
 
Join Date: Nov 2006
Location: Slums of Warnbro.
Posts: 2,130
Thanks: 4
Thanked 32 Times in 31 Posts
Pimpreza at standard level
Default

I've only got about 160kw ATW, and it's a stock V3 STI motor/computer with breathing mods only in a heavier car, I wouldn't want to push much more than about 140 atw through what you have and you'll still get a thrill.......200kw ATW is a big expensive figure to ask for with what you have, may as well shove a 200hp shot of Nitrous through it as it is because it'll probably last just as long and only cost about $500.
__________________
Beaten up old 98 Gen 2 Liberty, 13.0, stock V3 STI running gear.
07 Transit motor home
69 VF & 70 VG Valiants needing full restoration
Yamaha Zooma 50cc rocket hopefully going with the Transit.
Reply With Quote
Reply

Tags
1997, buy, mods, my98, start, wrx

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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: 1998 Subaru WRX Sedan Blue +mods (Bunbury) RedFox For Sale (Cars Only) 11 19-03-2009 09:14 AM
WRX/STI Factory Specs - Performance Figures WRXTASY General Subaru Discussion 9 06-12-2008 12:41 PM
about to buy a new wrx Angry_viet_man General Subaru Discussion 44 07-08-2007 09:13 PM
compliance plate cephas General Subaru Discussion 7 09-07-2007 09:03 PM
Fuel Pump for Verso Tune gumby General Subaru Discussion 32 25-04-2007 04:01 PM



Welcome to Perth-WRX, click here to register!

All times are GMT +8. The time now is 04:24 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO