Welcome to the North American Subaru Impreza Owners Club Saturday August 30, 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 12-13-2012, 05:43 PM   #1
rushdylan
Scooby Specialist
 
Member#: 337170
Join Date: Nov 2012
Location: hesperia, California
Vehicle:
2003 wrx
silver

Default

I've been port and polishing heads for motocross bikes for years, my wrx spun a rod bearing so everything is apart. I figured what better time than to port the stock turbo which I'll use for another 4 or so months till I pick up a 20G? after a lot of man hours, I have the exhaust housing 90% finished. the exhaust inlet is all finished but the exhaust port still has some work to be done. I couldn't finish it because I ran out of supplies so I'll need to buy more in the next few days to really make this thing pretty! also found a crack on the waste gate hole which will need some attention before this thing goes back into commission. the intake housing will definitely get some attention once I get more bits for the die grinder. hopefully i see at least a minimal amount of performance gain from this itty bitty thing. here's some pics!



http://i33.photobucket.com/albums/d8...D86635EA6C.jpg
* Registered users of the site do not see these ads.
rushdylan is offline   Reply With Quote
Old 12-13-2012, 07:04 PM   #2
marios03wrx
Scooby Specialist
 
Member#: 33593
Join Date: Mar 2003
Chapter/Region: MAIC
Location: Chesapeake, VA
Vehicle:
2002 WrX-ShAgNwAgOn
that is 05 WrX Power'd

Default

Not bad looking. I wish i had pics of my old VF30 that was ported & polished from deadbolt many moons ago.


Mario
marios03wrx is offline   Reply With Quote
Old 12-13-2012, 08:16 PM   #3
JUICEB0X
Scooby Newbie
 
Member#: 243090
Join Date: Apr 2010
Default

That looks awesome. I have seen dyno charts that show port and polished td04's adding ~15 HP.
JUICEB0X is offline   Reply With Quote
Old 12-13-2012, 08:44 PM   #4
rushdylan
Scooby Specialist
 
Member#: 337170
Join Date: Nov 2012
Location: hesperia, California
Vehicle:
2003 wrx
silver

Default

Quote:
Originally Posted by JUICEB0X View Post
That looks awesome. I have seen dyno charts that show port and polished td04's adding ~15 HP.
that's great! I wish I had specs telling me how large to make the intake. I think since it's such a small turbo that the bigger the better. but we will see what I end up going with
rushdylan is offline   Reply With Quote
Old 12-13-2012, 08:57 PM   #5
motoman399
Scooby Newbie
 
Member#: 270808
Join Date: Jan 2011
Location: Eureka Ca
Default

nice. it looks good. i ported and polished my td04 also. i think i went larger on the turbine inlet though. i made mine 2" roughly and i didnt touch the outlet, i didnt see the outlet netting much results. also have my compressor side ported and polished. i noticed good results. but i also did an up pipe at the same time.

out of curiosity, what bits are you using to port and polish with?
motoman399 is offline   Reply With Quote
Old 12-13-2012, 09:07 PM   #6
rushdylan
Scooby Specialist
 
Member#: 337170
Join Date: Nov 2012
Location: hesperia, California
Vehicle:
2003 wrx
silver

Default

Quote:
Originally Posted by motoman399 View Post
nice. it looks good. i ported and polished my td04 also. i think i went larger on the turbine inlet though. i made mine 2" roughly and i didnt touch the outlet, i didnt see the outlet netting much results. also have my compressor side ported and polished. i noticed good results. but i also did an up pipe at the same time.

out of curiosity, what bits are you using to port and polish with?
I'm debatin if I will go larger on turbo inlet. maybe I will leave the outlet alone because it wouldn't make sense if the air came from the smaller intake housing into a big ass port. it would let it expand and basically lose pressure in turn. although it might not register on a gauge. I have this whole kit I bought from summit racing. it uses a little rod that goes into my 1/4" die grinder and the sanding tips thread onto the rod which tapers at the top. I polish first with a blue sponge type deal and finish with a softer red one. I've had the ports on my 250 looking exactly like a mirror and by that, I mean I could see my eye lashes in the reflection! carbon simply wipes right off of it
rushdylan is offline   Reply With Quote
Old 12-13-2012, 09:08 PM   #7
claythrow
Scooby Specialist
 
Member#: 283663
Join Date: May 2011
Chapter/Region: NESIC
Location: Boston
Vehicle:
2004 STI
Root Beer

Default

Does it perform any differently?
claythrow is offline   Reply With Quote
Old 12-13-2012, 09:10 PM   #8
rushdylan
Scooby Specialist
 
Member#: 337170
Join Date: Nov 2012
Location: hesperia, California
Vehicle:
2003 wrx
silver

Default

Quote:
Originally Posted by claythrow View Post
Does it perform any differently?
motor is still apart from the spun bearing. can't tell you yet! but I expect something like 400-600 rpm sooner spool at least
rushdylan is offline   Reply With Quote
Old 12-15-2012, 08:10 PM   #9
rushdylan
Scooby Specialist
 
Member#: 337170
Join Date: Nov 2012
Location: hesperia, California
Vehicle:
2003 wrx
silver

Default

here's the intake housing very close to finished!

rushdylan 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


All times are GMT -4. The time now is 03:24 PM.


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.