Welcome to the North American Subaru Impreza Owners Club Tuesday September 1, 2015
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 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 10-25-2004, 09:22 PM   #1
west_minist
Scooby Specialist
 
Member#: 53451
Join Date: Jan 2004
Location: Caribbean
Vehicle:
2000 JDM Impreza SRX
w/ AVCS Silver

Smile HKS Carbon Ti for NA models

2000.9 Subaru Impreza GC8 SRX 2.0L w/ AVCS & Variable intake, Direct Ignition Automatic. in other words, think about the 2001+ WRX engine without the turbo. The setup looks the same.

Max.power (Net),kw(PS)/rpm
155 ps (114.00 kw) [152.88 HP] / 6400 rpm

Max.torque(Net),N*m(kg*m)/rpm
20.0 kg*m (196.13 N*m) [144.64 ft-lb] / 3200 rpm

I purchased the HKS Carbon TI (31012-BA002) Muffler about 4 months ago.

After upgrading to a 2.25" piping from my full 4-2-1 straight header to the stock muffler, I noticed an improvement in revving and some torque.

I purchase the HKS TI due to the fact that it had good reviews in Turbo Magazine, when compared to others for the WRX and RS.

Now, if you are looking for that subaru distinct deep throbbing sound, forget about this exhaust. Get a greddy or something like that.

After putting the Ti on, the car had noticeable torque, alot of it I think, compare to stock and good hp. I know for sure that it is well over 205Nm. You can really feel the torque when the car shifts down. Night is even worst.

I plan to do a dyno run on a dyno, since my Gtech Competition Pro gives me something like:-

RR Version 4.0
104.1 HP @ 6366 RPM
96.6 ft-lbs @ 4580 RPM

This include drivetrain losses, air resistance, rolling resistance. A soup bowl of losses. (In fact, I am going to post this on Gtech site for and estimate on flywheel numbers.)

But it was loud. Very loud. I put in a Magnaflow resonator (10414) to quiet it down, which it did, but still loud. The subaru noise came through more pronounce, but still more was to be desired.

Magnaflow resonators offer a really deeper sound compares to others.

Last week, I added another Magnaflow resonator to get a deeper sound and to also get rid on the spitting noise of the HKS.

Man, when there started the car, it was quiet. I mean really quiet. @ cruising, you can barely hear the deep hum.

When I took the car for the drive, I have good low end torque and the car was even faster than before. Those resonators have a 2" internal, making me feel that the car would do good with a 2", but my top end would suffer.

One resonator in the middle of the car while the other is next to the diff.

I also installed a flex pipe to reduce stress on the system.

But one thing I like about this setup is that I now have a high pitch, turbo spooling noise, that just sound sweet when passing 4000rpm to a air plan ringing @ full throttle.

I was on the track yesterday and was surprised how loud this ringing was, that you can still hear it through the subaru deep sound, 50ft away from the action. Also, was able to pull some 1.2g around the corners, and that was conservatively driving, didn't want to hit the car since it fairly low to the ground

Everyone is asking if it turbocharged due to the sound and how fast it was going around the track. You see, there are 2 types on impreza here where I live:- 1.5L and the WRX.

I came up upon a Mini Cooper S and because I was an auto, he would move a bit in front of me, 2-3 car lengths, but I would start to reel him back in fairly slowly. I would say that if I a long road, I would have pass him.

My friend's dad recently got his 2004 Legacy 2.5 from Japan.

We had a like test yesterday. We were almost match, but the 2.0R (SRX) was starting to put away. I am not to sure if we had a longer road if I would have leave him completely, but we are almost match. I have 4EAT while he has a 5EAT w/ Sportshift. But I tell you, that wagon is sweet.
* Registered users of the site do not see these ads.

Last edited by west_minist; 10-25-2004 at 11:26 PM.
west_minist is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 10-25-2004, 09:47 PM   #2
Handsdown
Scooby Guru
 
Member#: 29355
Join Date: Nov 2002
Chapter/Region: NWIC
Location: seattle
Default

awesome. great write up!

do you think you get more power with the HKS as oppossed to say, greddy?
Handsdown is offline   Reply With Quote
Old 10-25-2004, 09:51 PM   #3
west_minist
Scooby Specialist
 
Member#: 53451
Join Date: Jan 2004
Location: Caribbean
Vehicle:
2000 JDM Impreza SRX
w/ AVCS Silver

Default

My conclusion are only base on Turbo and Sport Compact magazine.

One exhaust that did good over the HKS Hi power was the Kakimoto Exhaust, which is very expensive and hard to come by.

There are so many exhaust out there, but I like how the HKS barrel give me that stances.

Also, the Supra uses the HKS a lot, hence my interest in them.

If there is any magazine with any other reviews on mufflers or exhaust systems on the wrx and RS, please share them.

But if I had to get another exhaust, I would get the Greddy EVO2 (10166601), but the HKS comes # 1 for me. When I replace my 2L block witht the STI 2.5L block and turbocharge, I would go with the Full WRX HKS Carbo TI system. May also have to put in a Magnaflow resonator - just in case

Last edited by west_minist; 10-25-2004 at 11:20 PM.
west_minist 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
HKS Carbon Ti for WRX/STI for sale autowrx Private 'For Sale' Classifieds 1 07-06-2005 01:36 AM
WTT HKS Carbon Ti for Scoobysport 2000wrx Private 'Wanted' Classifieds 3 05-25-2005 01:47 PM
HKS Carbon-Ti For Sale NeoTrunks Texas Impreza Club Forum -- TXIC 9 03-11-2005 05:01 PM
Wanted: HKS Carbon Ti for A'PEXi GT Spec SteveOWRX Private 'Wanted' Classifieds 2 02-23-2005 01:17 PM
HKS carbon ti for sale krnkimche2 Private 'For Sale' Classifieds 8 06-24-2004 09:03 PM


All times are GMT -4. The time now is 10:02 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2015 Axivo Inc.
Copyright ©1999 - 2015, North American Subaru Impreza Owners Club, Inc.