Perth-WRX.com  

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


Welcome to Perth-WRX, click here to register!

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 28-07-2011, 12:06 AM
Ashby's Avatar
WRX Hi Five Club
Member
 
Join Date: Jul 2011
Location: Mandurah
Posts: 163
Thanks: 1
Thanked 0 Times in 0 Posts
Ashby at standard level
Default stock gc8 turbo upgraded to vf34

Hey guys,

To be straight up, I know little to fuck all about cars, and i wont denie it haha

In the future, when and if my stock turbo dies in the ass, i will most likely splurge out some cash and buy a vf34 turbo.

My question is, what other parts will be necessary in order to install a vf34 on a stock gc8 (MY00) to ensure the car runs smoothly and reliably like it did with the stock setup. I.E. will some parts need to be upgraded to improve the strength? Will i need a new TMIC? things like that.

My my00 cse4 wrx has little mods and i don't plan on changing anything apart from what I've mentioned above.

Current mods:

- 3" TBE
- Ecutek 1.5 type tune
- 500hp fuel pump

thanks guys, any insight/help is much appreciated
Reply With Quote
  #2  
Old 28-07-2011, 12:38 AM
Shinobiken's Avatar
STI Master
Member
 
Join Date: Jul 2005
Location: Perth
Posts: 623
Thanks: 0
Thanked 0 Times in 0 Posts
Shinobiken at standard level
Default

i believe as long as you get a proper retune, it'll run reliably. But if you want the turbo to run abit more efficiently, ie, more power, you'll probably want to get a larger sti tmic, air filter and boost controller if you don't already have them. Then the next thing after that is probably larger injectors for abit more head room as you'll probably max out your 440s by then.
Reply With Quote
  #3  
Old 28-07-2011, 12:45 AM
Ashby's Avatar
WRX Hi Five Club
Member
 
Join Date: Jul 2011
Location: Mandurah
Posts: 163
Thanks: 1
Thanked 0 Times in 0 Posts
Ashby at standard level
Default

Well my priority is to eventually get the vf34 while still having a completely reliable day to day car. I don't plan to ever race or go extreme on mods after the vf34.

When you say more power do you mean id be able to get more psi out of the turbo if i was to get a STI TMIC, air filter and boost controller which will as a result produce more power?
Reply With Quote
  #4  
Old 28-07-2011, 02:12 AM
Jordiee's Avatar
Subaru Tech Division
Member
 
Join Date: May 2010
Location: North Perth
Posts: 1,172
Thanks: 7
Thanked 2 Times in 2 Posts
Jordiee at standard level
Default

yes, also less lag with an sti tmic, and a decent boost controller will help stabilise boost as you turn the wick up
__________________
http://www.trapster.com - spot da haterz
Reply With Quote
  #5  
Old 28-07-2011, 06:03 AM
Rexxar's Avatar
Flat Four Father
Member
 
Join Date: Dec 2007
Location: far far SOR
Posts: 2,299
Thanks: 12
Thanked 6 Times in 6 Posts
Rexxar at standard level
Send a message via MSN to Rexxar
Default

this is what I did to mine

VF34
walbro fuel pump
stock STI injector (516cc?)
Grimspeed/mac boost solenoid
silicon intake with stock airbox(resonectomy mod)
3" turbo back exhaust
retune to 1.6bar(207 motor)
good for 280-300hp/400nm
__________________
Chinese Mexican
[SIGPIC][/SIGPIC]
Reply With Quote
  #6  
Old 28-07-2011, 11:53 AM
Shinobiken's Avatar
STI Master
Member
 
Join Date: Jul 2005
Location: Perth
Posts: 623
Thanks: 0
Thanked 0 Times in 0 Posts
Shinobiken at standard level
Default

yea, engine wise the car will still be reliable and runs as smooth as stock with a good tune. However if you do get air filter, boost controller and sti tmic or maybe injectors, you'll be able to make full use of the vf34, hence more boost, torque and power, but at the same time, you'll most likely be looking at a new clutch as well as your stock one will slip. Then you'll be worrying about your gearbox.

However if thats far too much mods than you had expected then you probably shouldn't get a vf34. Afterall there is no real significant gain in running stock boost in a vf34 and without the supporting mods too. Even tho its a ball bearing turbo, it is a larger turbo, hence it should still be laggier than the tiny stock turbo.
Reply With Quote
  #7  
Old 28-07-2011, 01:18 PM
Kato's Avatar
Burnout!
Member
 
Join Date: Jul 2005
Location: Pimp Corner
Posts: 7,079
Thanks: 7
Thanked 120 Times in 75 Posts
Kato is a guruKato is a guru
Default

Search.

Has to be one of the most common modifications done to all WRX's.

VF34 + STi TMIC + Tune = Superfunhappytimes.

Being a GC8 also read up on smashing your 5 speed gearbox.
__________________
[COLOR="Gray"]550Nm off a 2L... Just wish it was in the dak dak...[/COLOR]
Reply With Quote
  #8  
Old 28-07-2011, 01:36 PM
REXXXED's Avatar
Subaru Tech Division
Member
 
Join Date: Oct 2008
Location: Probably Fishing
Posts: 1,917
Thanks: 55
Thanked 56 Times in 45 Posts
REXXXED knows their stuff
Default

This was the results of my powerFC tune today at 17PSI with a VF34 and GD STI TMIC and 3inch TBE

Clutch started slipping (OEM clutch on the way out) so that pretty much where it will stay for the time being until i find funds for headers and a new clutch/lightened flywheel.

This gives you an indication though of where you will be at with the same mods.
Attached Files
File Type: pdf WRX DYNO PRINTOUT.pdf (689.9 KB, 271 views)
__________________
[COLOR="Red"][B]Need Finance for a new Car or Mortgage??? Call or email me today:[/b][/COLOR]
[b][color="BLUE"][url]http://www.themortgagegallery.com.au/find-a-broker/manager/sam-zurzolo.aspx[/url][/b][/COLOR]
Reply With Quote
  #9  
Old 28-07-2011, 02:04 PM
RUSSGT's Avatar
Perth WRX Old Skool Cool Dude
Member
 
Join Date: May 2007
Location: Perth
Posts: 4,683
Thanks: 109
Thanked 90 Times in 79 Posts
RUSSGT is a guruRUSSGT is a guru
Default

Quote:
Originally Posted by Jordiee View Post
yes, also less lag with an sti tmic,
Not true. IC dont have an effect on lag. Lag is from the exhaust housing size. An Sti TMIC will actually increase throttle response time though as it a bigger chamber to the standard WRX one.
Reply With Quote
  #10  
Old 28-07-2011, 03:40 PM
Ashby's Avatar
WRX Hi Five Club
Member
 
Join Date: Jul 2011
Location: Mandurah
Posts: 163
Thanks: 1
Thanked 0 Times in 0 Posts
Ashby at standard level
Default

So basically as far as I now understand, If i go and upgrade to a vf34 and chuck an STI TMIC along with a tune i'll be getting alot more power but at the same time I will be putting my Clutch and 5sp Gearbox at risk? (I definitely can not afford to have my gearbox die on me haha)

If the clutch and flywheel are upgraded will this result in the gearbox being fine? or will this the gearbox still be under too much strain?
Reply With Quote
Reply

Tags
gc8, stock, turbo, upgraded, vf34

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
Aftermarket C/C in GC8 Turbo Alternate Mechanicals 7 15-09-2018 01:35 PM
IHI Turbos - Specs and FAQ pmh Mechanicals 308 14-04-2015 11:25 PM
Stock GC8 parts thommo For Sale 1 10-05-2011 12:56 PM
zorst gc8 / VF22 turbo / FMIC GC8 seagull For Sale 6 11-07-2009 08:24 PM
Gc8 My00 What Turbo?? sMY00n Mechanicals 10 11-05-2008 09:55 PM



Welcome to Perth-WRX, click here to register!

All times are GMT +8. The time now is 04:21 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO