Welcome to the North American Subaru Impreza Owners Club Monday December 22, 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 > Normally Aspirated with bolt-on Forced Induction 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 08-23-2001, 05:20 PM   #1
SUBYRS710
Scooby Newbie
 
Member#: 5186
Join Date: Mar 2001
Location: Pittsburgh Pa USA
Vehicle:
2000 2.5 RS Coupe
Silverthorn

Default can borla headers be used with Ludespeed kit?

Hey everybody, just wondering...would the BORLA gen.lll headers be able to be used with a LUDESPEED stage 2 kit??! Thanks in advance,

Tim
* Registered users of the site do not see these ads.
SUBYRS710 is offline   Reply With Quote
Old 08-23-2001, 05:20 PM   #2
Jewbaru
Scooby Specialist
 
Member#: 1994
Join Date: Jul 2000
Location: "Teh Hebro Town"
Vehicle:
2013 Impreza WRX
WRB

Default

yes, if the stock header bolts up, the borla should bolt up fine.
Jewbaru is offline   Reply With Quote
Old 08-23-2001, 06:15 PM   #3
Midwayman
Scooby Specialist
 
Member#: 1997
Join Date: Jul 2000
Chapter/Region: MWSOC
Location: Des Plaines, IL
Vehicle:
2006 Acura TL 6spd
STMGM6 alumni

Default

Ludespeed kits bolt to the stock header, so it should.
Midwayman is offline   Reply With Quote
Old 08-23-2001, 06:46 PM   #4
8Complex

Moderator
 
Member#: 922
Join Date: Feb 2000
Chapter/Region: MWSOC
Location: Schaumburg, IL
Vehicle:
04 FXT
Red

Default

But you have to take into consideration that the stock header is even more of a equal-length solution then the Borla one, so you could get odd results with the Borlas.

Also, I've heard that thicker runners on the exhaust manifold will cause the turbo to spool up more slowly.
8Complex is offline   Reply With Quote
Old 08-23-2001, 07:01 PM   #5
kaos200
Scooby Guru
 
Member#: 2692
Join Date: Oct 2000
Chapter/Region: SCIC
Location: SoCal
Default

yeah I wouldnt run the borlas on a turbo setup (or at all for that matter) Ive seen them break with the stress of the turbos on them (and without )
kaos200 is offline   Reply With Quote
Old 08-23-2001, 10:15 PM   #6
kaos200
Scooby Guru
 
Member#: 2692
Join Date: Oct 2000
Chapter/Region: SCIC
Location: SoCal
Default

haha my friend just told me he installed the Borlas on his RS-T and likes them (gen 3), more spool up and topend to boot!? Well proven wrong I guess.
kaos200 is offline   Reply With Quote
Old 08-24-2001, 02:17 AM   #7
NickSTi
Scooby Specialist
 
Member#: 626
Join Date: Dec 1999
Location: Miami FL
Vehicle:
2001 Impreza 2.5 RS
Black Diamond Pearl

Wink

yip i gotta chime in everytime this comes up.
we all agree borla headers are better than stock right? are less restrictive right? are good for some hp gain right?

so lets add things up... less restrictive on the exhaust side. hey that must be good for the turbo... quicker spool less backpressure.

i do agree that the welds are of question. some people believe they may not hold up the extra weight. mine hold up fine and i have the questionable gen IIs
NickSTi is offline   Reply With Quote
Old 08-24-2001, 05:54 PM   #8
Joe Hogan
Scooby Specialist
 
Member#: 699
Join Date: Jan 2000
Location: Green Mountain State
Vehicle:
2002 golf TDI
Blue

Default

Koa,

Is there specific evidence of better spool, data logs etc. on your friends car with the Borla Header? Not that I doubt the findings.

It was put to me that larger pipe diameter = less gas velocity = less boost at lower RPMs
Better power at top end makes some sense.

Joe
Joe Hogan is offline   Reply With Quote
Old 08-24-2001, 06:27 PM   #9
ColinL
Scooby Guru
 
Member#: 114
Join Date: Jul 1999
Chapter/Region: MWSOC
Location: Wichita, KS and Whoring, OT
Vehicle:
'03 Evo, Rice White
'01 Erion CBR 929

Default

Joe,

There's a problem with that though. You're forcing a whole bunch of air into the combustion chamber so where does it go?

One would think that there's some increased exhaust flow, at least to the limits of the cylinder head...

Increased exhaust flow could mean that the smaller plumbing is compromising velocity. Velocity depends on the pipe diameter, length, shape and volume of gas you're trying to push through it.
ColinL is offline   Reply With Quote
Old 08-31-2001, 08:04 PM   #10
Impreza Rider
Scooby Specialist
 
Member#: 756
Join Date: Jan 2000
Chapter/Region: MAIC
Location: Ashburn, Va
Vehicle:
2003 Legacy L wagon
2009 Kawasaki C14

Default

Sorry to resurrect an old thread, but did we ever decide if the Borla headers and a turbo were a good combo? I'm just wondering.
Impreza Rider is offline   Reply With Quote
Old 08-31-2001, 09:19 PM   #11
NickSTi
Scooby Specialist
 
Member#: 626
Join Date: Dec 1999
Location: Miami FL
Vehicle:
2001 Impreza 2.5 RS
Black Diamond Pearl

Wink

well there is no agreement as to whether they are great for a turbo app but this is where i think it stands:
1. I think the best option is the legacy turbo headers and the crossmember. but that can be expensive unless you get a good junkyard to raid.
2. I think the worst option is stock.
3. I think the middle option is the Borlas.

ymmv
NickSTi is offline   Reply With Quote
Old 09-01-2001, 02:08 AM   #12
Impreza Rider
Scooby Specialist
 
Member#: 756
Join Date: Jan 2000
Chapter/Region: MAIC
Location: Ashburn, Va
Vehicle:
2003 Legacy L wagon
2009 Kawasaki C14

Default

Thanks...I'm trying to decide what to blow the$450 I'm going to have left over on
Impreza Rider is offline   Reply With Quote
Old 09-01-2001, 02:10 AM   #13
Andrew
Scooby Specialist
 
Member#: 1170
Join Date: Mar 2000
Chapter/Region: BAIC
Location: San Jose, CA
Vehicle:
2005 STi
White

Default

the money can be better spent on other mods.
Andrew is offline   Reply With Quote
Old 09-01-2001, 02:22 AM   #14
Impreza Rider
Scooby Specialist
 
Member#: 756
Join Date: Jan 2000
Chapter/Region: MAIC
Location: Ashburn, Va
Vehicle:
2003 Legacy L wagon
2009 Kawasaki C14

Default

Yeah, money can always be spent on something else. The only other thing I was considering was a brake upgrade, since I'm afraid that the turbo is going to overwhelm the stock (besides SS lines) brakes.
Impreza Rider is offline   Reply With Quote
Old 09-01-2001, 02:41 AM   #15
Andrew
Scooby Specialist
 
Member#: 1170
Join Date: Mar 2000
Chapter/Region: BAIC
Location: San Jose, CA
Vehicle:
2005 STi
White

Default

make sure you have some form of engine management. i would suggest getting a J&S.
Andrew 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
What size of injector to be used with SMC kit ninjaboy76 Water/Methanol Injection, Nitrous & Intercooler Cooling 0 07-06-2006 12:56 AM
What mods can I perform NOW, that can be used with a 2.5T swap down the road? aliengti Normally Aspirated with bolt-on Forced Induction Powertrain 10 01-07-2004 10:02 PM
Can a UTEC be used with intake and FMIC ? blitz01 Engine Management & Tuning 6 02-19-2003 02:52 PM
Any 98RS-T with LudeSPEED kit? Photo requested! TIA bensonwrx Normally Aspirated with bolt-on Forced Induction Powertrain 9 07-04-2002 12:06 AM
Can the Unichip be used with the GC8 2.5RS? Brood Normally Aspirated with bolt-on Forced Induction Powertrain 21 04-03-2002 06:40 PM


All times are GMT -4. The time now is 09:41 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.