Welcome to the North American Subaru Impreza Owners Club Thursday October 2, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Factory 2.0L Turbo Powertrain

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 04-15-2003, 12:38 PM   #1
wrx2
Scooby Specialist
 
Member#: 13852
Join Date: Jan 2002
Location: Philadelphia
Vehicle:
2002 WRX vf22 SOLD
Now E46 M3 Vert

Default Questions for vf22 turbo?

Hello guys and gals
I just bought used vf22 turbo with good deal. But I don't have enough money for supporting mods(ie.injectors, fuel pump, etc).
However I'm running Vishnu stage1(aggressive map for IC hose and 3" catless all the way setup) unichip with EMI adapter.
Can my car run with this set up for a while without any problems? I know that I have to reduce boost but how much? I'm running 16.5~17 psi now. Your response would be greatly appreciated.

Here are my mods:
Godspeed uppipe
Helix downpipe
Greddy EVO cat back
IC hose with STi scoop and splitter
Pulley, colder plugs
HKS BOV
K&N filter
Unichip with EMI adapter
* Registered users of the site do not see these ads.

Last edited by wrx2; 04-15-2003 at 12:46 PM.
wrx2 is offline   Reply With Quote
Old 04-15-2003, 01:01 PM   #2
MAD REX
Scooby Specialist
 
Member#: 18163
Join Date: Apr 2002
Location: Denver
Vehicle:
2002 2.5 WRX
MBP

Default

You'll have to keep the boost down to 14-15 max.

You will also need to get your Unichip reprogrammed.

And...you will need a mbc to keep the boost down I think. If not it'll spike like mad.
MAD REX is offline   Reply With Quote
Old 04-15-2003, 02:31 PM   #3
TCENGEL
Scooby Specialist
 
Member#: 8302
Join Date: Jul 2001
Chapter/Region: MWSOC
Location: Arlington Heights, IL
Vehicle:
2002 WRX WRB Sold!
2006 Scion TC-T

Default

I ran 15-16PSI on a TXS unichip for quite a while. Just make sure you have at least an EGT guage to make sure your still rich.
TCENGEL is offline   Reply With Quote
Old 04-15-2003, 02:51 PM   #4
wrx2
Scooby Specialist
 
Member#: 13852
Join Date: Jan 2002
Location: Philadelphia
Vehicle:
2002 WRX vf22 SOLD
Now E46 M3 Vert

Default

Thanks guys for reply.
MAD REX: I think that my aggressive stage1 map is already max out for fuel delivery for stock injectors. But do I still need to remap? I don't know how much Shiv can add more fuel for stock injectors from current map
wrx2 is offline   Reply With Quote
Old 04-15-2003, 04:25 PM   #5
Vishnu Performance
Vendor
 
Member#: 14494
Join Date: Jan 2002
Location: SF Bay Area, California
Vehicle:
WRX Porsche 996
blue & black

Default

My suggestion is to not install the VF22 until you get larger injectors and a pump. While it is possible to wiggle another 10 wheel hp or so out of the car with the VF22 and stock injectors, it does require careful mapping on the dyno as to not induce any lean run.

Shiv
Vishnu Performance is offline   Reply With Quote
Old 04-16-2003, 01:11 AM   #6
wrx2
Scooby Specialist
 
Member#: 13852
Join Date: Jan 2002
Location: Philadelphia
Vehicle:
2002 WRX vf22 SOLD
Now E46 M3 Vert

Default

Thanks Shiv for your suggestion.
I will get injectors and pump near future and send you my unichip to remap. But I still wanna run my vf22 right now So I'm okay if I don't go over 14.5psi or 1bar, right? Thanks.
wrx2 is offline   Reply With Quote
Old 04-16-2003, 01:27 AM   #7
Vishnu Performance
Vendor
 
Member#: 14494
Join Date: Jan 2002
Location: SF Bay Area, California
Vehicle:
WRX Porsche 996
blue & black

Default

Hard to say, honestly. I'd suggest against it. But if you must, make sure you aren't hearing detonation. If you don't know what it sounds like, find someone who does

shiv
Vishnu Performance is offline   Reply With Quote
Old 04-16-2003, 01:37 AM   #8
tdxflex
Scooby Specialist
 
Member#: 13634
Join Date: Dec 2001
Chapter/Region: NESIC
Location: Boston
Vehicle:
2002 WRX
WRB

Default

i definately wouldn't install it. you'll probably have to turn the boost down even lower than 14psi to be safe, and then with the added lag while not going any faster, and constant worry of messing something up, you'll wish you had your stock one back on.
tdxflex is offline   Reply With Quote
Old 04-16-2003, 03:16 AM   #9
wrx2
Scooby Specialist
 
Member#: 13852
Join Date: Jan 2002
Location: Philadelphia
Vehicle:
2002 WRX vf22 SOLD
Now E46 M3 Vert

Default

OK, Guys
I will wait until I got injectors and pump. Can't wait
Thanks.
wrx2 is offline   Reply With Quote
Old 04-16-2003, 03:43 AM   #10
Sunkist
Scooby Newbie
 
Member#: 26387
Join Date: Oct 2002
Chapter/Region: SWIC
Location: Tucson, AZ
Vehicle:
2002 2.5 Hybrid WRX
Platinum

Default

I know someone who was running it on a stock WRX and she had her boost down to just under 13PSI but it did still give her a nice power boost. I am running at 13PSI with my VF23 until I get injectors and a pump and my car has a bit more umph.
Sunkist is offline   Reply With Quote
Old 04-16-2003, 10:16 AM   #11
Twelvz
Scooby Specialist
 
Member#: 11302
Join Date: Oct 2001
Location: VA Beach VA + Cleveland!
Vehicle:
11 GT-R
10.x @130+

Default

just fyi...

anything over 13psi and your idc's will be well over 100%
14 psi you'll be around 120%
Twelvz is offline   Reply With Quote
Old 04-16-2003, 10:28 AM   #12
tdxflex
Scooby Specialist
 
Member#: 13634
Join Date: Dec 2001
Chapter/Region: NESIC
Location: Boston
Vehicle:
2002 WRX
WRB

Default

Quote:
Originally posted by Sunkist
I know someone who was running it on a stock WRX and she had her boost down to just under 13PSI but it did still give her a nice power boost. I am running at 13PSI with my VF23 until I get injectors and a pump and my car has a bit more umph.
The 22 flows a bit more than the 23 and has more lag. the 23 is probably more comparable to a 30. Are you sure you're not getting any detonation, pulled timing, etc? even if the car pulls a bit more and everything appears safe, i would keep an eagle eye on my gauges. it's not like people didn't have problems with their stock turbos, so even if you lowered the boost to try to match the cfms, you can still have problems.
tdxflex is offline   Reply With Quote
Old 04-16-2003, 11:43 AM   #13
Sunkist
Scooby Newbie
 
Member#: 26387
Join Date: Oct 2002
Chapter/Region: SWIC
Location: Tucson, AZ
Vehicle:
2002 2.5 Hybrid WRX
Platinum

Default

It seems to be running perfectly, I had a shop install it for me and they said it is running very reliably and should last if I keep it this way for a long time.
Sunkist is offline   Reply With Quote
Old 04-20-2003, 05:45 PM   #14
wrx2
Scooby Specialist
 
Member#: 13852
Join Date: Jan 2002
Location: Philadelphia
Vehicle:
2002 WRX vf22 SOLD
Now E46 M3 Vert

Default

Hey Shiv
I just ordered injectors and pump. My credit card bill will kill me next month. Anyway I will send you my unichip tomorrow to remap. Do I have to send you EMI adapter with unichip? or just unichip? Let me know. Can anyone give me the answer this question? Thanks.
wrx2 is offline   Reply With Quote
Old 04-20-2003, 05:54 PM   #15
tdxflex
Scooby Specialist
 
Member#: 13634
Join Date: Dec 2001
Chapter/Region: NESIC
Location: Boston
Vehicle:
2002 WRX
WRB

Default

Quote:
Originally posted by Sunkist
It seems to be running perfectly, I had a shop install it for me and they said it is running very reliably and should last if I keep it this way for a long time.
i don't know how they can come up with that assumption without doing any datalogging. i'm sure it is somewhat reliable, to what extent is unknown. and you may also have trouble spots in certain rpm ranges.


Quote:
Originally posted by wrx2
Do I have to send you EMI adapter with unichip? or just unichip? Let me know. Can anyone give me the answer this question? Thanks.
he just needs the unichip
tdxflex 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
Questions for VF22 owners Agent_50 Factory 2.0L Turbo Powertrain 3 02-19-2004 09:29 AM
Question for M2 turbo back users WRX7 Factory 2.0L Turbo Powertrain 1 09-28-2002 12:35 PM
Question for MRT Turbo Back Owners lbk16 Factory 2.0L Turbo Powertrain 3 08-28-2001 09:30 AM
Question for the turbo gods out there skyliner33v Normally Aspirated Powertrain 17 02-10-2001 12:30 AM
Is my car out of the question for a turbo? GregBolby General Forum Archive 4 01-12-2001 07:58 PM


All times are GMT -4. The time now is 10:40 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.