Welcome to the North American Subaru Impreza Owners Club Wednesday December 7, 2016
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo)

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.
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 08-16-2006, 12:41 PM   #1
ChrisCJ99
Scooby Specialist
 
Member#: 120647
Join Date: Jul 2006
Chapter/Region: South East
Location: Tampa, FL
Vehicle:
2006 WRX
Charcoal Grey

Default VF34 on 06 WRX finally installed & tuned!

So I finally got my VF34 installed on my 06 WRX, and it came out just how I wanted it to. The other mods I have are APS air intake, APS 525 FMIC, HKS BOV (going to change to a GFB stealth BOV), HKS downpipe, HKS Carbon ti exhaust and Ecutek ECU flash with protune. And wow! I'm pretty darn happy. I must say that it wasn't a DRASTIC change, but enough to put a smile on my face From the couple runs on the dyno, the best run was 304 whp/296 lb tq, which is EXACTLY what I was looking for. This is my daily driver and I didn't really want much more than that. And for a daily driver, it's really fun to drive. Nothing TOO crazy, but not sluggish AT ALL. I must say that the lag is a bit more noticeable. I get full boost at 3400 RPM, which is also where I wanted it. Yes it takes a bit more for the full power to kick in, but it pulls nice all the way to red line. So it doesn't pull to hard unless I really step on it, and that's what I wanted. I know a lot of people were wondering why I would go with a VF34, but it's just what I was looking for, a nice CONSERVATIVE turbo upgrade. Hopefully this will give some people with an 06 WRX a good idea about the VF34 on a 2.5L engine. I will try to post a dyno sheet soon
* Registered users of the site do not see these ads.
ChrisCJ99 is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 08-16-2006, 12:54 PM   #2
nater
Scooby Specialist
 
Member#: 105543
Join Date: Jan 2006
Chapter/Region: South East
Location: New Orleans LA
Vehicle:
1965 Factory Five
Cobra, carbon fiber black

Default

That is great to hear! I am glad you are happy!
nater is offline   Reply With Quote
Old 08-16-2006, 12:56 PM   #3
uathatis
Scooby Specialist
 
Member#: 117300
Join Date: Jun 2006
Chapter/Region: MAIC
Default

o wow... i'm very interested..
subscribed

btw.. you'd probably get more power with a better exhaust..
hks dp = no bellmouth/small piping.... hks carbon ti = 2.5in

when my friend with a vf39 setup changed his carbon ti to a real 3in catback he noticed a big difference....
uathatis is offline   Reply With Quote
Old 08-16-2006, 01:48 PM   #4
ChrisCJ99
Scooby Specialist
 
Member#: 120647
Join Date: Jul 2006
Chapter/Region: South East
Location: Tampa, FL
Vehicle:
2006 WRX
Charcoal Grey

Default

Quote:
Originally Posted by uathatis
o wow... i'm very interested..
subscribed

btw.. you'd probably get more power with a better exhaust..
hks dp = no bellmouth/small piping.... hks carbon ti = 2.5in

when my friend with a vf39 setup changed his carbon ti to a real 3in catback he noticed a big difference....
Yeah, I'm sure it would obviously do better since a bellmouth would flow more. But the HKS isn't hurting the car though, but its not doing THE BEST either. But it's good for the time being,. I may upgrade the exhaust later to an APS full exhaust and downpipe, but for now it runs great. The only thing is that I'm getting a flutter from what seems to be the HKS BOV... So I'm gonna try a GFB stealth BOV and see if that helps.
ChrisCJ99 is offline   Reply With Quote
Old 08-16-2006, 01:56 PM   #5
r0nzar
Scooby Specialist
 
Member#: 78957
Join Date: Jan 2005
Chapter/Region: RMIC
Location: SLC, UT
Vehicle:
'06 Evo IX RS
White on white on salt

Default

just tighten the wastegate arm, the bov will make your car run like crap
r0nzar is offline   Reply With Quote
Old 08-16-2006, 04:47 PM   #6
Yoo Shin
Scooby Specialist
 
Member#: 87327
Join Date: May 2005
Chapter/Region: South East
Location: Bama but coming back to TEXAS
Vehicle:
2010 12 parsec Evo X
I still kill threads

Default

+1 for a dyno sheet!
Yoo Shin is offline   Reply With Quote
Old 08-16-2006, 05:19 PM   #7
brodiemash
Scooby Specialist
 
Member#: 105011
Join Date: Jan 2006
Location: Central Cali
Vehicle:
2006 Impreza TR WRX
Obsidian Black

Default

Nice! Kinda of the route I was thinking about taking. Subscribed!
brodiemash is offline   Reply With Quote
Old 08-16-2006, 05:21 PM   #8
Jaxx
NASIOC Supporter
 
Member#: 177
Join Date: Aug 1999
Chapter/Region: NWIC
Location: Austin, Texas, USA
Vehicle:
The 93 W/EJ20K
Series 10 FRS

Default

Quote:
Originally Posted by uathatis
o
btw.. you'd probably get more power with a better exhaust..
hks dp = no bellmouth/small piping.... hks carbon ti = 2.5in
absolute rubbish
Jaxx is offline   Reply With Quote
Old 08-16-2006, 05:43 PM   #9
uathatis
Scooby Specialist
 
Member#: 117300
Join Date: Jun 2006
Chapter/Region: MAIC
Default

Quote:
Originally Posted by Jaxx
absolute rubbish
alright then....
uathatis is offline   Reply With Quote
Old 08-16-2006, 11:28 PM   #10
[D.I.]WRX
Scooby Specialist
 
Member#: 116314
Join Date: May 2006
Chapter/Region: SCIC
Location: San Diego
Default

+1 for dyno sheet too. I was considering this since its a cheaper upgrade. nice to know someone likes it.
[D.I.]WRX is offline   Reply With Quote
Old 08-17-2006, 12:13 AM   #11
ChrisCJ99
Scooby Specialist
 
Member#: 120647
Join Date: Jul 2006
Chapter/Region: South East
Location: Tampa, FL
Vehicle:
2006 WRX
Charcoal Grey

Default

I'm in the process of finding a way to post the dyno sheet on here... I'm kinda new to posting pics in forums... Would I need a host?

So I went out and bought a GFB stealth BOV... Kinda up in the air about it... I used to have the HKS BOV and that thing was pretty loud, how I liked it. But after putting the GFB BOV on and setting it to the loudest setting possible, it wasn't that loud at all... Just a loud WHOOSH sound. Sounds ok, but I'd want something a bit louder. But it held the boost good and I like how you can adjust the spring tension. So the BOV flutter seemed to be fixed, for now... Anyone have the GFB stealth BOV with the whistle horn? Is it any good?
ChrisCJ99 is offline   Reply With Quote
Old 08-17-2006, 12:24 AM   #12
ChrisCJ99
Scooby Specialist
 
Member#: 120647
Join Date: Jul 2006
Chapter/Region: South East
Location: Tampa, FL
Vehicle:
2006 WRX
Charcoal Grey

Default

Ok. So here is one Dyno run my tuner did. Like I said, the BEST run did 304 whp which ironically was the first run. But from what it seems the car seemed to run consistently in the upper 280's & 290's... Good enough for me I'll post some more when I get them
ChrisCJ99 is offline   Reply With Quote
Old 08-17-2006, 12:25 AM   #13
black06wagon
Scooby Newbie
 
Member#: 97270
Join Date: Sep 2005
Chapter/Region: SCIC
Default

black06wagon is offline   Reply With Quote
Old 08-17-2006, 12:28 AM   #14
shikataganai
Scooby Guru
 
Member#: 92634
Join Date: Aug 2005
Chapter/Region: RMIC
Vehicle:
'07 Land Cruiser
'12 RAV4 EV

Default

what do stock STis and WRXs put down on that dyno?
shikataganai is offline   Reply With Quote
Old 08-17-2006, 12:32 AM   #15
ChrisCJ99
Scooby Specialist
 
Member#: 120647
Join Date: Jul 2006
Chapter/Region: South East
Location: Tampa, FL
Vehicle:
2006 WRX
Charcoal Grey

Default

Quote:
Originally Posted by shikataganai
what do stock STis and WRXs put down on that dyno?
I believe the stock WRX's put down about 160 whp on a dynojet. Before my Ecutek software flash, my car ran 188 whp (it had an injen CAI, HKS BOV, HKS downpipe and HKS Carbon ti exhaust). I think the stock Sti's run about 250 whp or so...

But after the Ecutek my car had 247 whp / 256 lb tq with the stock TD04 turbo. Pretty nice gains...
ChrisCJ99 is offline   Reply With Quote
Old 08-17-2006, 12:34 AM   #16
STL WRX
Scooby Specialist
 
Member#: 88304
Join Date: Jun 2005
Chapter/Region: MAIC
Location: Tazewell, Va
Vehicle:
05 VF34 Aspen WRX

Default

Quote:
Originally Posted by black06wagon
WOO WOO!
STL WRX is offline   Reply With Quote
Old 08-17-2006, 02:17 AM   #17
Yoo Shin
Scooby Specialist
 
Member#: 87327
Join Date: May 2005
Chapter/Region: South East
Location: Bama but coming back to TEXAS
Vehicle:
2010 12 parsec Evo X
I still kill threads

Default

Nice but I'm having a hard time reading the graph. At what rpm does all that 283+ ft/lbs of fat torque kick in?
Yoo Shin is offline   Reply With Quote
Old 08-17-2006, 02:33 AM   #18
STimo
Scooby Specialist
 
Member#: 110273
Join Date: Mar 2006
Location: OC, California
Vehicle:
450 whp 30R STI
[email protected]

Default

Quote:
Originally Posted by ChrisCJ99
Anyone have the GFB stealth BOV with the whistle horn? Is it any good?
Dont waste your money on that crappy horn. I did and it doesn't do crap, it's a piece of shti.. If you HAVE to have it though i'll gladly sell you mine.. PM me ..
STimo is offline   Reply With Quote
Old 08-17-2006, 07:07 AM   #19
ChrisCJ99
Scooby Specialist
 
Member#: 120647
Join Date: Jul 2006
Chapter/Region: South East
Location: Tampa, FL
Vehicle:
2006 WRX
Charcoal Grey

Default

Quote:
Originally Posted by Yoo Shin
Nice but I'm having a hard time reading the graph. At what rpm does all that 283+ ft/lbs of fat torque kick in?
Sorry, the graph didn't scan that well. I was reaching max torque at about 3400 RPM. But I'm gonna try and have my tuner send me some more print outs and I'll post them on here as soon as I can.
ChrisCJ99 is offline   Reply With Quote
Old 08-17-2006, 09:12 AM   #20
nhluhr
John Wayne Toilet Paper
Moderator
 
Member#: 7327
Join Date: Jun 2001
Chapter/Region: NWIC
Location: Seattle, WA
Vehicle:
2008 Mazdaspeed3
2006 Wrangler Sport

Default

Quote:
Originally Posted by ChrisCJ99
I know a lot of people were wondering why I would go with a VF34, but it's just what I was looking for, a nice CONSERVATIVE turbo upgrade.
Congrats on setting your goals and sticking to them. I am one of those people who will never want a larger turbo.
nhluhr is offline   Reply With Quote
Old 08-17-2006, 11:25 AM   #21
Donzo
Scooby Guru
 
Member#: 95337
Join Date: Sep 2005
Chapter/Region: Tri-State
Location: Putnam/Westchester NY
Vehicle:
2012 Jeep Overland

Default

Quote:
Originally Posted by ChrisCJ99
I believe the stock WRX's put down about 160 whp on a dynojet. Before my Ecutek software flash, my car ran 188 whp (it had an injen CAI, HKS BOV, HKS downpipe and HKS Carbon ti exhaust). I think the stock Sti's run about 250 whp or so...

But after the Ecutek my car had 247 whp / 256 lb tq with the stock TD04 turbo. Pretty nice gains...
Those numbers are not from a 2006 WRX. He has an '06 so posting number of a previous year isn't a very good reference point. I'd like to know how much a stock '06 runs on that dyno. Apparently, the '06 WRX's are usually running 210whp stock.
Donzo is offline   Reply With Quote
Old 08-17-2006, 11:26 AM   #22
deblas66
Scooby Specialist
 
Member#: 114096
Join Date: May 2006
Chapter/Region: Tri-State
Location: NYC
Default

Quote:
Originally Posted by TheDon427
Those numbers are not from a 2006 WRX. He has an '06 so posting number of a previous year isn't a very good reference point. I'd like to know how much a stock '06 runs on that dyno. Apparently, the '06 WRX's are usually running 210whp stock.
I've heard around 205 wheel.
deblas66 is offline   Reply With Quote
Old 08-17-2006, 11:29 AM   #23
Donzo
Scooby Guru
 
Member#: 95337
Join Date: Sep 2005
Chapter/Region: Tri-State
Location: Putnam/Westchester NY
Vehicle:
2012 Jeep Overland

Default

yea, you'll never get the same numbers from the same care on the same dyno. There are so many different factors. I can believe 205whp.
Donzo is offline   Reply With Quote
Old 08-17-2006, 11:45 AM   #24
ChrisCJ99
Scooby Specialist
 
Member#: 120647
Join Date: Jul 2006
Chapter/Region: South East
Location: Tampa, FL
Vehicle:
2006 WRX
Charcoal Grey

Default

Quote:
Originally Posted by TheDon427
yea, you'll never get the same numbers from the same care on the same dyno. There are so many different factors. I can believe 205whp.
205 whp on a STOCK wrx??? I find that to be a bit hard to believe. My 2006 WRX ran 188 whp with Injen CAI, HKS BOV, HKS Downpipe and HKS carbon ti exhaust... How can a STOCK WRX run 205 whp??? I'd like to see dyno sheets to back that one up...
ChrisCJ99 is offline   Reply With Quote
Old 08-17-2006, 11:51 AM   #25
Donzo
Scooby Guru
 
Member#: 95337
Join Date: Sep 2005
Chapter/Region: Tri-State
Location: Putnam/Westchester NY
Vehicle:
2012 Jeep Overland

Default

you'd have to go do a search, a couple of months ago there were tons of threads with dyno sheets proving that. It shouldn't be hard to find. I can't remember the exact key words but I think one of the threads might have been the one that COBB provided so try doing one with Cobb WRX and it should show up in chronological order. I remember it being a big thread. I'm actually finding it hard to believe you only had 188whp. I wish I could remember the threads but I remember seeing how one of them had 210whp which roughly translates to around 250hp as opposed to 230hp Subaru claims.

Maybe your BOV and CAI are hurting the performance as well which could be why everyone is so against using either of those products. If you haven't done so already, I'd research that as well. However, your tuner probably took care of most of the problems associated with that.

Last edited by Donzo; 08-17-2006 at 02:33 PM.
Donzo 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
INSTALL QUESTION ABOUT STI TMIC on 06 wrx. Require tune? lordizzy626 Newbies & FAQs 13 10-20-2013 08:19 PM
How many have VF34 on 06-07 WRX? mluong01 Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 4 11-08-2009 08:15 PM
Need help with vf34 on 06 wrx decision. jimmy1614 Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 23 12-17-2007 11:54 AM
What size pill on 06 wrx with vf34? jimmy1614 Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 5 10-07-2007 05:06 PM
Run VF34 on 06 WRX without tune? ChrisCJ99 Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 2 08-09-2006 12:01 PM

All times are GMT -4. The time now is 04:53 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2016 Axivo Inc.
Copyright ©1999 - 2016, North American Subaru Impreza Owners Club, Inc.