Welcome to the North American Subaru Impreza Owners Club Saturday July 12, 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 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 09-23-2010, 11:26 PM   #26
WagonMafioso
Scooby Newbie
 
Member#: 222641
Join Date: Sep 2009
Chapter/Region: MAIC
Default

Quote:
Originally Posted by williaty View Post
Angle on the downstream flange is different.

Thank god they're using a 3-bolt though! 2-bolt flange is one of the stupidest things man ever invented.
Yeah couple inches to the right, but just the same.
* Registered users of the site do not see these ads.
WagonMafioso is offline   Reply With Quote
Old 09-23-2010, 11:26 PM   #27
Badtiming
Scooby Newbie
 
Member#: 254996
Join Date: Aug 2010
Chapter/Region: Tri-State
Vehicle:
2010 Impreza 2.5i
White

Default

Quote:
Originally Posted by williaty View Post
We should start a pool on pricing. My bet is $400+
if I win the pool can i get $400.. 100 says ill win lol
Badtiming is offline   Reply With Quote
Old 09-23-2010, 11:33 PM   #28
Audi20Tdriver
Scooby Newbie
 
Member#: 206040
Join Date: Mar 2009
Location: Carlsbad, CA
Vehicle:
2009 Audi A4 2.0T
APR Stage 1

Default

Quote:
Originally Posted by RaineMan View Post
So... an expensive header just for the sound. I think I'll pass.
Bro welcome to subaru N/A. It's not that power can't be made with quality boltons and quality tuning.

I've been a nabisco member since 2003 and I'd have to say.. 85% percent of the people on N/A are just throwing on exhaust and intakes and calling it a day.. which is precisely what you said, costly and no gains. At least a header like that will have a sexy exhaust tone. Lets count how many peeps on here shelled out over 200 bucks on an useless sound mod intake at some point...

1
Audi20Tdriver is offline   Reply With Quote
Old 09-24-2010, 12:32 AM   #29
WagonMafioso
Scooby Newbie
 
Member#: 222641
Join Date: Sep 2009
Chapter/Region: MAIC
Default

Quote:
Originally Posted by Audi20Tdriver View Post
Bro welcome to subaru N/A. It's not that power can't be made with quality boltons and quality tuning.

I've been a nabisco member since 2003 and I'd have to say.. 85% percent of the people on N/A are just throwing on exhaust and intakes and calling it a day.. which is precisely what you said, costly and no gains. At least a header like that will have a sexy exhaust tone. Lets count how many peeps on here shelled out over 200 bucks on an useless sound mod intake at some point...

1
Intake Useless?
WagonMafioso is offline   Reply With Quote
Old 09-24-2010, 12:33 AM   #30
williaty
Scooby Guru
 
Member#: 71092
Join Date: Sep 2004
Chapter/Region: MWSOC
Location: Delaware County, Ohio
Vehicle:
2005 2.5RS Wagon
Regal Blue Pearl

Default

Quote:
Originally Posted by WagonMafioso View Post
Intake Useless?
Well, most of them are bad for your car and all of them don't add enough power to justify $200.
williaty is offline   Reply With Quote
Old 09-24-2010, 12:47 AM   #31
WagonMafioso
Scooby Newbie
 
Member#: 222641
Join Date: Sep 2009
Chapter/Region: MAIC
Default

Quote:
Originally Posted by williaty View Post
Well, most of them are bad for your car and all of them don't add enough power to justify $200.
True for MAF based, I got a $50 intake for my MAP, works great and adds power.
WagonMafioso is offline   Reply With Quote
Old 09-24-2010, 12:52 AM   #32
nairbmik
Scooby Specialist
 
Member#: 220259
Join Date: Aug 2009
Chapter/Region: MAIC
Location: HoCo & College Park
Vehicle:
09 2.5i
SSM

Default

Quote:
Originally Posted by WagonMafioso View Post
Intake Useless?
...Yeah?
nairbmik is offline   Reply With Quote
Old 09-24-2010, 01:13 AM   #33
royalnewjersey
Scooby Newbie
 
Member#: 250954
Join Date: Jul 2010
Chapter/Region: NWIC
Vehicle:
2013 WRX Hatch
WRB

Default

will definitely buy. I'm hoping they're in the $300 range. Totally worth the money for a direct bolt on solution to get the growl back. Hands down.
royalnewjersey is offline   Reply With Quote
Old 09-24-2010, 02:20 AM   #34
Audi20Tdriver
Scooby Newbie
 
Member#: 206040
Join Date: Mar 2009
Location: Carlsbad, CA
Vehicle:
2009 Audi A4 2.0T
APR Stage 1

Default

Quote:
Originally Posted by WagonMafioso View Post
True for MAF based, I got a $50 intake for my MAP, works great and adds power.
MAF cars def outnumber the MAP cars though. My favorite intake for MAP subaru's was the gravel sport intake.

I also remember when Injen came out with the revised intake for the 05.. peeps on here were buying those up like candy at $270 a pop.

So my point still stands.. I'd spend 300 on super nice UEL headers vs 270 on an intake..

As nice and the borla and replica ones sound, the WRX manifold is way more UEL.
Audi20Tdriver is offline   Reply With Quote
Old 09-24-2010, 09:06 AM   #35
GEE-OTTO
Scooby Specialist
 
Member#: 201277
Join Date: Jan 2009
Chapter/Region: MAIC
Location: Arlington VA
Vehicle:
2009 Legacy GT
OBP

Default

Final price hasn't been set yet but the combination of materials and TIG/MIG processing will be such that the best price possible is achieved for the builder and the buyer.
GEE-OTTO is offline   Reply With Quote
Old 09-24-2010, 09:39 AM   #36
littlec
Scooby Newbie
 
Member#: 208934
Join Date: Apr 2009
Location: canada
Vehicle:
09 2.5i

Default

wow. neat. i cant believe there's finally a prototype! after all my hard work. heh. interesting design. i'm curious what people will say about it. i put the price range around 450$?
littlec is offline   Reply With Quote
Old 09-24-2010, 09:53 AM   #37
GT11
Scooby Specialist
 
Member#: 128002
Join Date: Oct 2006
Chapter/Region: International
Location: The moon
Vehicle:
0000 four door sedan
Poop color

Default

No need to buy a HFC with this header design?
GT11 is offline   Reply With Quote
Old 09-24-2010, 10:01 AM   #38
Stewart McKenzie
Scooby Newbie
 
Member#: 238873
Join Date: Feb 2010
Chapter/Region: MAIC
Location: Round Hill, Virginia
Vehicle:
2010 Impreza OBS
Newport Blue/Steel Silver

Default

Looks good....
Stewart McKenzie is offline   Reply With Quote
Old 09-24-2010, 01:21 PM   #39
RaineMan
Scooby Specialist
 
Member#: 256727
Join Date: Sep 2010
Chapter/Region: RMIC
Location: SL,UT
Vehicle:
2007 2.5I Wagon
Silver

Default

Quote:
Originally Posted by Audi20Tdriver View Post
Bro welcome to subaru N/A. It's not that power can't be made with quality boltons and quality tuning.

I've been a nabisco member since 2003 and I'd have to say.. 85% percent of the people on N/A are just throwing on exhaust and intakes and calling it a day.. which is precisely what you said, costly and no gains. At least a header like that will have a sexy exhaust tone. Lets count how many peeps on here shelled out over 200 bucks on an useless sound mod intake at some point...
Intakes and exhaust aren't completely useless. They do flow better than stock and will provide gains, especially with a tune. However an aftermarket header that flows the same or slightly worse than the stock unit seems like a complete waste of a couple hundred bucks.

As cool as it is to have the "boxer rumble" people should realize that the turbo cars make that sound for a reason, primarily b/c of turbo placement, and while it is possible to duplicate it (to a degree) on the NA cars it really doesn't gain you anything.
RaineMan is offline   Reply With Quote
Old 09-24-2010, 02:15 PM   #40
Audi20Tdriver
Scooby Newbie
 
Member#: 206040
Join Date: Mar 2009
Location: Carlsbad, CA
Vehicle:
2009 Audi A4 2.0T
APR Stage 1

Default

Exhaust without changing the header does next to nothing on these cars. Plus, I said most people do it without any tuning. You could search the N/A section and find tons of people who literally just buy axle backs.. or who just have an axleback and a intake.

If your argument is pure bang for buck, then it doesnt really make sense to mod the 2.5 at all then. Most of the time, the sound result is the biggest impact from the mod.
Audi20Tdriver is offline   Reply With Quote
Old 09-24-2010, 03:47 PM   #41
Back Road Runner
Scooby Guru
 
Member#: 60082
Join Date: Apr 2004
Chapter/Region: MWSOC
Location: Minnesota
Vehicle:
2004 Forester STI
Silver

Default

Quote:
Originally Posted by WagonMafioso View Post
True for MAF based, I got a $50 intake for my MAP, works great and adds power.
Not necessarily either. The stock setup doesn't restrict at all, and the stock tune favors the stock hardware. You can lose power by stepping to an aftermarket option. Gains will be minimal and mainly a side effect of pulling in colder air (if not a short ram intake).

Even MAP based cars are sensitive to the intake used. Heck, pull off the stock piping from the air box and say bye to 10 ft-lbs around 2000 rpm and uneven AFR up to 3000 rpm. I'm not kidding either. It is sensitive to ECU tune though, so on the same setup that created a loss, you can also have a gain just from a different tune. A 10 ft-lb loss with one tune can very much be a 5 ft-lb gain with another tune, on the same hardware.
Back Road Runner is offline   Reply With Quote
Old 09-24-2010, 03:52 PM   #42
Back Road Runner
Scooby Guru
 
Member#: 60082
Join Date: Apr 2004
Chapter/Region: MWSOC
Location: Minnesota
Vehicle:
2004 Forester STI
Silver

Default

Quote:
Originally Posted by littlec View Post
wow. neat. i cant believe there's finally a prototype! after all my hard work. heh. interesting design. i'm curious what people will say about it. i put the price range around 450$?
I like it. Large radius bends, smooth collection, steps up in overall size after each collection. For an UEL header, there isn't much not to like. I'm personally still partial to the EL design cause I'm an engineering nerd, but that's just me. I might suggest trying to run a small variety of pipe sizing on the dyno and see what works best. There will likely be some sensitivity to each step, and there might be interesting results if you step up or down on size for any of the pipes. It depends how much R&D will be invested. You might have 3-4 finished prototypes and a hours on the dyno to see what combination provides what gains/losses.
Back Road Runner is offline   Reply With Quote
Old 09-25-2010, 03:03 PM   #43
royalnewjersey
Scooby Newbie
 
Member#: 250954
Join Date: Jul 2010
Chapter/Region: NWIC
Vehicle:
2013 WRX Hatch
WRB

Default

How much?! Rallisport give us more info!
royalnewjersey is offline   Reply With Quote
Old 09-25-2010, 04:46 PM   #44
The Cheshire Cat
Scooby Newbie
 
Member#: 244390
Join Date: Apr 2010
Chapter/Region: MWSOC
Location: Chicago
Vehicle:
2008
Spark Silver

Arrow

I'd buy for sure. I'm always interested in new products and what they do. Whether it be good or bad. I'll sit and wait patiently. Hell, I'd put off drinking for a week or two to get these because I'd like to try them so bad.
The Cheshire Cat is offline   Reply With Quote
Old 09-25-2010, 06:34 PM   #45
blk6s
Scooby Newbie
 
Member#: 200057
Join Date: Jan 2009
Location: near St Paul, MN
Vehicle:
2013 Impreza 2.0i
RalliSported RomRaided

Default

Quote:
Originally Posted by royalnewjersey View Post
How much?! Rallisport give us more info!
$450 was the price I was trying to hit. That's just not going to happen, 304 stainless is expensive. It costs way more to build these than I expected. The price will be around $550.
blk6s is offline   Reply With Quote
Old 09-26-2010, 04:09 PM   #46
bigrobwoot
Scooby Newbie
 
Member#: 173741
Join Date: Mar 2008
Location: Nor Nev (Reno)
Vehicle:
2005 Impreza RS
Regal blue pearl

Default

Quote:
Originally Posted by blk6s View Post
$450 was the price I was trying to hit. That's just not going to happen, 304 stainless is expensive. It costs way more to build these than I expected. The price will be around $550.
bigrobwoot is offline   Reply With Quote
Old 09-26-2010, 09:46 PM   #47
Jay89
Scooby Newbie
 
Member#: 205205
Join Date: Mar 2009
Chapter/Region: W. Canada
Location: Alberta
Vehicle:
2007 WRX
Urban Grey

Default

haha good to hear rallisport is making some progress. their site seems to be out of stock on everything =p

anyways, as for the argument on intake and exhaust mods on N/A cars (05+) i think it would be safe to say that 75% of people who modded their n/a did it for looks, and sound. 20% did it based off of mis-information, and the last 5% did it because they had bigger plans in mind. i am one of those last 5%. i read all the stickies on intakes, and mods on our cars. i agree. its useless and a waste of money. UNLESS you put in some major cash into something like cams, or a turbo.

I would buy this header, not for looks, because no one can see it. not for performance, because if there is any gain, its not enough to justify any price over 100. but for sound. i, like everyone else, enjoy that purr we call the boxer rumble. if it indeed is a competitive price, then i believe that it is worth putting the money into such a part.

As with any part you put on your car, i STRONGLY urge you to do your homework. our cars were not made for speed. our cars were not made for the track. our cars were made with "family" in mind. it was designed to be quiet, soft, and safe. if you wanted something fast, that wont cost you an arm and a leg, then you should have purchased a wrx. i eventually plan to put PnP heads and cams into my car then have it professionally tuned, and corner balanced. why? because i simply wish to learn more about how this car works. how each component affects the car as a whole. one can not put a price on knowledge. yes i can find all the information online. yes i can find out a lot without having to put a cent in. BUT can you believe everything everyone says? no. the one person you can believe is yourself. i find the information here helpful to me in my decision making, but it does not make my decision for me. =p

I hope each and every one of you make your own decisions and do not let the internet tell you otherwise xD
Jay89 is offline   Reply With Quote
Old 09-26-2010, 11:23 PM   #48
williaty
Scooby Guru
 
Member#: 71092
Join Date: Sep 2004
Chapter/Region: MWSOC
Location: Delaware County, Ohio
Vehicle:
2005 2.5RS Wagon
Regal Blue Pearl

Default

Jay, I disagree. Here's why:

Quote:
Originally Posted by williaty View Post
1) Hate turbo lag. At the time, 2.0L was all that was available in turbo and that **** just sucks.
2) Price. At the time, the WRX was BIG money more than an RS. All the mods I've done to my RS (which I recently listed) have cost me less than the price difference between a new RS and a new WRX at that time. In other words, the total cost of my modded RS is still lower than the cost of a WRX back then.
3) Insurance. Much cheaper insurance. Plus, much less risk of theft. Who's going to break into a beat up NA wagon?
4) Kinda don't give a frack about horsepower. No, really. The only time I want more power has been when trying to pass someone on a short passing lane on a two lane road. The rest of the time, the RS has more than enough power. All the engine research and testing I've done has been curiosity.

In the end, I've spent less money to end up with a fast car this way. I won't beat a hippopotamus in a straight line, but there's not a whole lot that'll get away from me in the hills. Considering it's in the hills that I like to drive, and that F430 falling away in the rearview mirror... well, it's nice to remind him that my car cost less than his wheels when he finally catches up at the rest break.
Quote:
Originally Posted by williaty View Post
2005 Impreza 2.5RS Wagon in Regal Blue Pearl
Basic Suspension: Full Sedan Front End Conversion, USDM STi Springs, Tokico D-Specs, Paranoid Fabrications 1/4" Saggy Butt Shims, Kartboy F/R Endlinks, Whiteline 22mm Adj RSB, Whiteline QR Rear STB, GT-Spec ALK, Whiteline Max-C Motorsport camber plates, Whiteline KCA313 Roll Center Adjustment Kit, Turn In Concepts Fender Braces
Bushings: Full STi Group N Lateral Link, Trailing Link, and Rear Strut Mount Set, Kartboy Tranny Crossmember, TiC Comfort Rear Diff, Whiteline Steering Rack Bushings, Kartboy Outrigger Bushings, Kartboy Front and Rear Shifter Stay Bushings, TiC 5MT Shifter Pivot Bushing
Brakes: OEM blank rotors, StopTech Street Perofmance, TechnaFit Stainless Steel Brake Lines, ATE Superblue Racing Brake Fluid, TiC Master Cylinder Brace, TiC HTS:Bearing
Competition: Primitive Racing 3/16ths Front Skidplate and Rear Diff Protector, Alfa Club Rally Odometer/Chronometer, Schroth Rallye 4 Quick-Fit Harness for the Navi
Powertrain: Techworks Engineering 4-2-1 High Output Equal Length Headers, Stromung SS 2.25" Midpipe, Group A Performance Lightweight Crank Pulley, Hybrid Silentake, Group A Performance Throttle Body Spacer, RomRaided, Delta Torque Cams, Phenolic Intake Manifold Spacers, ACT Streetlight Flywheel, Group N Engine Mounts
Electronics: Hella Rallye 1000 FF Driving Lights and 500FF Fog Lights, Rear Deck Light Addition, Map Light Addition, Hella Supertones, Innovate Motorsports LC-1 WBO2 w/ XD-16 Display, STRi X-Line Oil Temp and Pressure Gauges, Icom IC-208H, Midland 1001Z, Larsen NMO2/70B and NMO27B, Uniden Bearcat ESP-20 and ESP-5
Rolly Bits: Summer-16" OEM wheels in Dunlop Direzza Z1 Star Specs Winter-16" OEM Wheels in Hankook Icebear W300s Snow- General Altimax Arctics.
Body: Front Grille Center Pillar Delete, DIY Big Assed d@mn Serious Rally Style Mudflaps, Aluminum Hood
ICE: Pioneer DEH-3900MP, Pioneer CD-IB100II iPod Controller, Pioneer TS-D161R 6-1/2" Kevlar 2-Ways
Interior: Kartboy Short Shifter, W.C. Lathewerks Stainless Steel Shifter Extension under a Delrin Sphere Knob with Alcantara Wrap, Sullivan Racing Products Silver Grid Pedal Set, DIY Hypoallergenic Cabin Air Filter, GC-Lock, S204ed Center Console, Obsessive Amounts of RAAMmat and Ensolite
williaty is offline   Reply With Quote
Old 09-26-2010, 11:37 PM   #49
GEE-OTTO
Scooby Specialist
 
Member#: 201277
Join Date: Jan 2009
Chapter/Region: MAIC
Location: Arlington VA
Vehicle:
2009 Legacy GT
OBP

Default

THIS IS A THREAD FOR RALLISPORT RACING'S HEADER not for F'ing intakes, you dude needs to take that to the other 1000 threads pertaining to it and KEEP IT OUT OF HERE!
GEE-OTTO is offline   Reply With Quote
Old 09-26-2010, 11:48 PM   #50
littlec
Scooby Newbie
 
Member#: 208934
Join Date: Apr 2009
Location: canada
Vehicle:
09 2.5i

Default

Rofl. What will be the best intake in my 08? Any input gee Otto?


Ralli sport racing- don't forget to check the OEM front diffuser will clear these headers. Not sure if the US models have this but it is worth looking into.
littlec 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
It's finally time for the ice racing! see red Mid West Subaru Owners Club Forum -- MWSOC 19 11-07-2011 11:35 AM
Support the Rallisport Racing 2.5i build GEE-OTTO Normally Aspirated Powertrain 17 04-09-2010 02:13 PM
RalliSport Racing HF Cat Kramer3608 Normally Aspirated Powertrain 19 06-17-2009 09:06 PM
i finally cracked opened the motor i blew at the last race... giveme5bux Texas Impreza Club Forum -- TXIC 11 07-01-2007 01:27 PM
Ultimate-Racing 785CC final map impressions RiftsWRX Factory 2.0L Turbo Powertrain 0 07-24-2003 04:18 AM


All times are GMT -4. The time now is 01:04 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.