Welcome to the North American Subaru Impreza Owners Club Sunday August 31, 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 > Engine Management & Tuning > AccessPort

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 02-11-2006, 09:28 PM   #1
Eskram
Scooby Newbie
 
Member#: 16697
Join Date: Mar 2002
Chapter/Region: South East
Vehicle:
2004 2.5 Hybrid 18g
Wagon + LGT 1-4 g00dness!

Default Worth putting header back on for protune?

I'm getting my car Protuned by Topspeed in a few weeks.
I have a 1st-gen GT Spec header that is currently off of the car. I had ongoing problems getting the uppipe joint to seal with the header on, so I took it off several months ago and put the stock manifold back on.

Is it worth the hassle to put it back on and hope I can get it to seal, or should I just stick with the factory manifold for now? What kind of gains with a header are people getting over a standard stg2 protune?
* Registered users of the site do not see these ads.
Eskram is offline   Reply With Quote
Old 02-11-2006, 09:34 PM   #2
hondaeater69
Scooby Guru
 
Member#: 60324
Join Date: Apr 2004
Location: a pillow.
Default

typical header results. . .gain HP in the top end, lose it on the bottom. If you are willing to sacrifice bottom end for top end, AND get the leak fixed, it's your choice go for it!
hondaeater69 is offline   Reply With Quote
Old 02-12-2006, 03:38 AM   #3
Bbasso
Scooby Specialist
 
Member#: 66235
Join Date: Jul 2004
Chapter/Region: Tri-State
Location: South Carolina !
Vehicle:
2005 WRX
Silver

Default

Quote:
Originally Posted by hondaeater69
typical header results. . .gain HP in the top end, lose it on the bottom. If you are willing to sacrifice bottom end for top end
I'd think that has to do with the design of the header, So a general statement like that is not really fair to say.
Most of the time when improving the flow of exhaust usually helps to gain power thru out the entire RPM range....

If you have any proof of your claim then I would glady retract my last statement.
Bbasso is offline   Reply With Quote
Old 02-12-2006, 04:10 AM   #4
hondaeater69
Scooby Guru
 
Member#: 60324
Join Date: Apr 2004
Location: a pillow.
Default

Quote:
Originally Posted by Bbasso
I'd think that has to do with the design of the header, So a general statement like that is not really fair to say.
Most of the time when improving the flow of exhaust usually helps to gain power thru out the entire RPM range....

If you have any proof of your claim then I would glady retract my last statement.

on a NA car headers will usually add power throughout the RPM range, on turbo applications a header usually creates a longer path to the turbo creating a small amount of lag in the front part of the RPM band. . .I'd find you proof, but i don't feel like it right now, maybe tomorrow k.

I don't know if you're nitpicking or not, but for clarification i'm talking about aftermarket tublar headers. . .
hondaeater69 is offline   Reply With Quote
Old 02-12-2006, 12:13 PM   #5
txl146
Scooby Guru
 
Member#: 32459
Join Date: Feb 2003
Chapter/Region: Tri-State
Location: NY
Vehicle:
02 WRX VF34
Junior Tuned 301whp

Default

based on my experience, I agree with hondaeater69.
txl146 is offline   Reply With Quote
Old 02-12-2006, 06:14 PM   #6
Eskram
Scooby Newbie
 
Member#: 16697
Join Date: Mar 2002
Chapter/Region: South East
Vehicle:
2004 2.5 Hybrid 18g
Wagon + LGT 1-4 g00dness!

Default

Hmm.. Sounds like it's not worth the trouble. I'll probably just leave it off then and possibly sell it.

Thanks.
Eskram is offline   Reply With Quote
Old 02-13-2006, 01:38 AM   #7
JustA4
Scooby Specialist
 
Member#: 58210
Join Date: Mar 2004
Chapter/Region: TXIC
Location: NW Houston
Vehicle:
2004 35r STi
186mph - standing mile!

Default

FWIW - I Talked with PDX Tuning about putting some Headers on my car with the install of the GT30r. They responded that the current exhaust manifold isn't a limiting factor and that it has better velocity to the turbo than current headers. He said the money could be better spent on other mods.
JustA4 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
Is it worth putting STI springs on my 07 2.5i? Buktheng Impreza Forum 14 06-06-2009 09:27 PM
Good thing I put my trusty RE92's back on for the summer roffle Off-Topic 27 04-01-2005 10:37 PM
Sunroof leaks , piece of rubber came off - help putting it back on Legacy Legacy Forum 1 03-22-2003 10:35 PM
how to put badges back on? elemental Interior & Exterior Modification 9 01-06-2003 03:46 AM
Putting badges back on? 98kPa Interior & Exterior Modification 8 04-25-2002 05:12 PM


All times are GMT -4. The time now is 07:16 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.