Welcome to the North American Subaru Impreza Owners Club Wednesday August 20, 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 Subaru Models > Legacy Forum

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 04-16-2000, 07:21 PM   #1
ADIL
Scooby Newbie
 
Member#: 354
Join Date: Oct 1999
Location: CEDAR PARK, TX
Vehicle:
2002 WRX
SILVER WAGON

Question Intake question

Guys! What kinds (brands) of intake have you got for your Legacys. I am thinking about getting one, but not sure which is the best (quality and price wise). I have 93 Legacy L (non turbo). I am feeling a lack of power. It might help me adding some more hp. What do you guys think. Any reply or sugestion will be appreciated.

[This message has been edited by ADIL (edited April 16, 2000).]
* Registered users of the site do not see these ads.
ADIL is offline   Reply With Quote
Old 04-17-2000, 10:18 AM   #2
Force[FED]
Scooby Specialist
 
Member#: 292
Join Date: Sep 1999
Location: Elmer, NJ USA
Vehicle:
2008 BMW 335xi Coupe
Alpine White

Post

I have the Weapon-R intake on my 99 2.5GT. There is a pic of it on my site (lagging.com) under my Legacy pics.

It sounds sweet under WOT above 3K rpms. SCC dyno'd an extra 15 or so hp. Honestly, my GT always feels slow compared to my DSM, so it's hard to say whether or not I felt the power increase.

Kev www.lagging.com
Force[FED] is offline   Reply With Quote
Old 04-17-2000, 10:24 AM   #3
Subie Gal
GC84Ever
Super Moderator
 
Member#: 301
Join Date: Sep 1999
Chapter/Region: NWIC
Location: WA
Vehicle:
1970 FF-1 & '70 Van
02 WRX/01 RS

Post

I have the Weapon R too...

Sounds great, looks good, performs as intended... pics are up on my site as well...
cost is approx. $200 depending on where u get one from... i felt an immediate increase in power, but i have a modified exhaust as well - the combination added approximately 10-15hp...

[This message has been edited by Subie Gal (edited April 17, 2000).]
Subie Gal is offline   Reply With Quote
Old 04-17-2000, 11:10 AM   #4
ADIL
Scooby Newbie
 
Member#: 354
Join Date: Oct 1999
Location: CEDAR PARK, TX
Vehicle:
2002 WRX
SILVER WAGON

Question

Thanks!
What about JC intake. Does some one have that. Thay say it is completly bolt on within 30 minutes. Jamie, was the installation easy on your weapon R?
I have to decide between two JC or W R.

[This message has been edited by ADIL (edited April 17, 2000).]
ADIL is offline   Reply With Quote
Old 04-17-2000, 07:28 PM   #5
CRAZY KEN
Scooby Specialist
 
Member#: 1176
Join Date: Mar 2000
Chapter/Region: MAIC
Location: Potomac, MD
Vehicle:
2012 Legacy GT Ltd
Pearl Statin White

Cool

I GOT A 1999 LEGACY 2.5 GT...& I RESEARCHED THE HELL OUT OF INTAKES...YOU GOT J.C. SPORTS...YOU GOT WEAPON-R...YOU GOT MINNAM RACING...YOU GOT ELITE ONE (WHICH WOULD OF BEEN THE ONE I PICKED, BUT THEIR OUT OF BUSINESS/THEY HAD MADE AN INSULATED SECTION FOR THE AIR INTAKE, SO THE HEAT OF THE ENGINE WON'T BE SUCKED IN...COOL!!! ...BUT THEY WENT BELLY UP SO FORGET THEM!!!)
...WWW.SPOMOTORSPORTS.COM HAS THE WEAPON-R INTAKE IN VARIOUS COLORS FOR A SPECIAL PRICE OF $165.00, IF IT'S STILL AVAILABLE!!! YOU CAN CHOOSE TO USE THE WEAPON-R V2 AIR FILTER(SPONGE) OR GET A K&N UNIVERSAL AIR FITLER WITH HORN(LIKE I DID)
...THE DIFFERENCE IN HP=NOTHING...SOUND-THE V2 HAS A HIGHER PITCH UNDER WOT THAN THE K&N...I JUST LIKE THE FACT OF CLEANING AND REUSING AN AIR FILTER...BUT I SWOPT THEM TO TEST EACH OF THEIR CHARACTERISTICS
INSTALLATION TIME-IF YOU READ THE INSTRUCTIONS STEP BY STEP YOU SHOULD BE ABLE THE STRIP THE STOCK INTAKE SYSTEM IN ABOUT 10 TO 15 MINS. ...AND IF INSTALLING THE NEW SYSTEM GOES SMOOTHLY (AIR MASS SENSOR, 4 CLAMPS, A COUPLE OF HOSES, THE AIR FILTER, AND BRACING THE INTAKE TO THE ENGINE) IT SHOULD TAKE ANOTHER 15 TO 25 MINS.
REMEMBER TO RESET YOUR ECU BY DISCONNECTING THE NEGATIVE WIRE FOR AT LEAST 30 MINS. THEN RECONNECT THE NEGATIVE WIRE AND START THE CAR ...LETTING ITSELF WARM UP TO NORMAL ENGINE TEMPERATURES...DO NOT TAKE IT FOR A RIDE...DO NOT STEP ON THE GAS, WHILE IT IS WARMING UP...ONCE IT HAS REACHED NORMAL ENGINE TEMP.(the temp. at which over 15 mins. of normal driving conditions your car reaches) turn it off, & turn it back on for your test drive!!!
CRAZY KEN is offline   Reply With Quote
Old 04-18-2000, 08:18 AM   #6
ADIL
Scooby Newbie
 
Member#: 354
Join Date: Oct 1999
Location: CEDAR PARK, TX
Vehicle:
2002 WRX
SILVER WAGON

Smile

Thanks for the information CRAZY.....KEN
ADIL is offline   Reply With Quote
Old 04-19-2000, 09:41 AM   #7
legalistic
Scooby Newbie
 
Member#: 1317
Join Date: Apr 2000
Location: Canada
Post

Hey dudes,

What about MY Legacys below 1999? For instance, I have a MY98 Legacy with the 2.2L SOHC block. Are the aftermarket intakes aforementioned fully compatible with respect to functionality and performance on the 2.2's compared to the 2.5's? What SAFC's? Are they imperative to maximize the effectiveness of these intake kits? I am just looking for some generous HP gain, a little more sound and some passing power on the highways. Anyone have any suggestions or have experience with the 2.2's?? Any help would be be greatly appreciated...
legalistic is offline   Reply With Quote
Old 04-19-2000, 01:46 PM   #8
Shik
NASIOC Supporter
 
Member#: 132
Join Date: Jul 1999
Chapter/Region: Tri-State
Location: Central PA
Vehicle:
2006 GT Ltd 5spd sdn
2015 WRX on order

Post

Adil, this is only my opinion but for the earlier Legacys, I would just go with a K&N drop-in filter and remove the inner fender baffle. I mean, take a look at your intake. Does it really look restrictive to you? The JC intake *may* flow a bit better but not enough for anyone to ever notice. Plus( engineers please correct me if I'm wrong), but isn't aluminum a better heat conductor then the material the OEM intake is made of from the factory? So aside from sucking in hot engine bay air with an intake( unless you have a shield or cold air tube or something), the air will at least stay that temp, if not get a bit hotter, all the way to the engine.

Also, I believe in the last update in SCC of the Impreza, all gains that were lost when Shiv went back to the OEM intake and filter, were gained back when he put a drop-in K&N in. And that is on a tubocharged car!

Like I said, its just my opinion but *on the older style OEM intakes*, I can't see an aftermarket intake having any advantage over a standard K&N drop-in filter. But, it's your dinero
Shik is offline   Reply With Quote
Old 04-19-2000, 05:15 PM   #9
JC
NASIOC Supporter
 
Member#: 692
Join Date: Dec 1999
Chapter/Region: SCIC
Vehicle:
2006 Pontiac GTO M6
Triumph Street Triple R

Question

Whats an inner fender baffle and how do I take it out? Adil, I have a K&N drop-in and noticed a small change but nothing much.
JC is offline   Reply With Quote
Old 04-19-2000, 06:29 PM   #10
ADIL
Scooby Newbie
 
Member#: 354
Join Date: Oct 1999
Location: CEDAR PARK, TX
Vehicle:
2002 WRX
SILVER WAGON

Question

Legalistic, I had the same question that you had but you asked in a better way. I am not expecting a significant gain in a horse power so I can street race, but just enough for highway driving. I travel on Hwy a lot.
Shik, I colpletely agree with you. The factory material is much better insulator than aluminum, and a lot of people had noticed that they never felt a significant increase in power after adding a aftermarket intake. That was my purpose of posting this topic that is it really worth it? Is there a difference betwen 1st and 2nd gen Legacys factory intake. I thought that they are almost the same. But Shik from your post it seems like that I don't really need to worry about adding an aftermarket intake. I have the same question as JC have. What is that fender thing and how to remove it?
ADIL is offline   Reply With Quote
Old 04-19-2000, 07:08 PM   #11
Shik
NASIOC Supporter
 
Member#: 132
Join Date: Jul 1999
Chapter/Region: Tri-State
Location: Central PA
Vehicle:
2006 GT Ltd 5spd sdn
2015 WRX on order

Post

Guys, the inner fender baffle is just a big plastic box with some duct work on it inside the right front fender. It is there to quiet the intake as well as to help keep dirt and water and things from ever making it to the filter. So instead of the airbox having to suck air through all the pipe work, after it is removed it can just suck air from the open space inside the fender. Probably won't add up to much but it's a free mod so what the heck. It may also give you a bit more of an aftermarket intake sucking sound at WOT. Just yank down the plastic inner fender piece and you'll see it in there. I believe it's held in with two bolts.

As for the different motors with the AFC...good question. This again is just my opinion but here goes. The AFC works so well with the 99SOHC 2.5 because without the OEM intake, it had a tendency to run lean in the higher RPMs. People use the AFC with the SOHC 99's not so much to gain power, but to REGAIN lost power due to it running lean, hence the knock sensor comes into play, retards the timing and spoils the fun.

Now I'm assuming since all the 2.2s and 2.5 DOHCs up until 98(and 99 DOHC 2.5s in the Legacy) used the same basic MAS( Mass Airflow Sensor), that their ECU's are also similar and it is said that the 98 RS's have a tendency to run rich( I don't know this first hand). If that is the case, then the gains by using an AFC may be slim since you may not be losing any power from running lean to begin with. Now when you go adding turbochargers and things like that, it is probably a good idea. But to just use it in conjunction with an intake on a 98(99 Legacy 2.5) and older, it may not be totally needed. Until someone does some real testing with these motors and add-on parts, it would be hard to tell. But, if it were me, I think I'd let the AFC slide.

Hope this helps a bit. Maybe someone who has messed around with the different combos could shed a little more light on the subject.
Shik is offline   Reply With Quote
Old 04-20-2000, 01:56 PM   #12
legaliztik
Scooby Newbie
 
Member#: 1316
Join Date: Apr 2000
Location: Mississauga, ON, Canada
Post

Shik,

Very informative post, and I am now a bit relieved at what you said. I was not planning on spending an extra $400 for a SAFC just so an I can pull out every bit of performance and need from an aftermarket intake. Now that I do think about it, I believe I will stray away from an intake for the time being and just remove the intake silencer (hehe, for the sound!!) and drop in an Amsoil or K&N filtercharger to free up more air. How does that sound? As I have mentioned before, I am just interested in a little more power gain for the highways ... I just want to have the feeling that whenever I do need the extra power, I know that it's there at my disposal.

On to another question ... I just picked up an A'pexi Dunk 115 Universal muffler (one heck of a tip ... but it looks great!!), once again, I am primarily looking for a bit of high end gain without sacrificing any low end torque. I believe, and I have been told, A'pexs are known for this. Anyhow, many have suggested that I go for the entire cat-back piping to utilize the full performance of the Dunk. My question is: how wide should my custom mid-piping be? I was thinking at least 2.25 to 2.5 inches ... does anyone have any suggestions at this point? I was intending just to have just the Dunk installed with the stock cat-back, but as I have mentioned, I have been told to do otherwise? Now, as far as performance is concerned, will I be losing any power? If I don't gain a significant much ... I will be just as satisfied with the awesome growls the A'Pexs make ...
legaliztik is offline   Reply With Quote
Old 04-22-2000, 02:51 AM   #13
Shik
NASIOC Supporter
 
Member#: 132
Join Date: Jul 1999
Chapter/Region: Tri-State
Location: Central PA
Vehicle:
2006 GT Ltd 5spd sdn
2015 WRX on order

Post

Legaliztik, I believe the general rule of thumb for a normally aspirated car is 2.25. Getting high-end power without sacraficing the low-end is the tough part. You will naturally get varrying opinions but I know first hand that when we put a 2.5 cat-back and Aerospeed muffler on a friend's RS, the low-end did suffer, but the high end did gain a bit. I'd probably get the mid-pipe done with the muffler if just for the sake of losing the factory resonator and gaining a bit of sound. Power wise, I can't see the mid-pipe creating decent power if everything before the mid-pipe and the muffler after the mid-pipe are the same. But then again, I don't have much experience with normally aspirated cat-backs. I'm sure the others may have some good advice on this subject. Good luck.

BTW, nice choice in brand of muffler -From the happiest Apex-i N1 owner on the planet
Shik is offline   Reply With Quote
Old 04-22-2000, 01:29 PM   #14
Patrick Olsen
NASIOC Supporter
 
Member#: 120
Join Date: Jul 1999
Chapter/Region: AKIC
Location: Where the Navy sends me...
Vehicle:
1997 Legacy 2.5GT
QuickSilver Metallic

Post

For JC and legalistic,
Definitely get rid of that intake silencer in the right fender. As Shik said, it probably doesn't make any difference performance wise, but the engine sounds much nicer at high RPMs. Above about 4000-4500 or so you'll really be able to hear a difference - a nice growl from the intake.

To remove the silencer you have to partially remove the fender liner for the passenger side front wheel. I don't think I removed the wheel when I did it, but I don't remember. As I recall, on my '99 there were three screws holding the front of the liner in place (the liner is rounded to follow the shape of the wheelwell, and then in front of the wheel well it is parallel to the ground - that parallel part is what I mean by "front"). Then there are screw(s) along the rim of the wheelwell holding the liner in place. Just keep removing screws until you can move the liner out of the way and see the silencer. You won't miss it - it's a black plastic box, about 12"x6"x6" with two tubes coming out of the top. One goes up to the filter box intake, and the other goes up the front passenger side corner of the engine compartment. Remove the silencer and the flat plastic tube/intake thing in the front passenger side corner of the engine compartment, put the fender liner back in place and you're good to go. Probably took me 45min or so, maybe less.

I did a drop in K&N at the same time as the silencer removal, so I don't know how much that may have contributed to the sound.

Pat Olsen
'99 Legacy 2.5GT 5 speed sedan

[This message has been edited by Patrick Olsen (edited April 22, 2000).]
Patrick Olsen is offline   Reply With Quote
Old 04-25-2000, 12:41 AM   #15
legalistic
Scooby Newbie
 
Member#: 1317
Join Date: Apr 2000
Location: Canada
Post

Pat:

I performed the intake silencer removal mod, but I'm still waiting for the performance Amsoil drop-in filter I ordered. I did feel a slight increase in sound as well as a more of a free-flowing take in gear shifting ... I'm revving smoother than before. However, I have some minor concerns. With the removal of the intake silencer, it creates a free hole between the opening of the intake box and the inside fender wall ~ the filter element is visible. I put a grill in between to prevent rocks and pebbles, but I am aware I will have to replace/ clean my filter more often since dust and dirt are more accessible. What about water? Has anyone who has performed this mod on their Legacys or Imprezas have encountered any problems with respect to water seeping in? Will this affect anything? Furthermore, the removal of the silencer resulter is constant ringing/ wooshing sound. Is this normal? Is the sound that we are supposed expect due to the removal of the silencer? I am curious as to whether the sound will change after I drop the Amsoil filter in the intake box. The sound can get rather cumbersome if I don't play my stereo at the same time or if there is loud traffic, other than that ... that intake box does produce a nice pleasant growl from the sucking in the freer air. Any suggestions?
legalistic is offline   Reply With Quote
Old 04-25-2000, 01:07 PM   #16
BG5
Scooby Newbie
 
Member#: 695
Join Date: Dec 1999
Location: Cali
Post

it'll probably be a little bit louder with the free flowing Amsoil filter...
BG5 is offline   Reply With Quote
Old 04-25-2000, 06:08 PM   #17
legalistic
Scooby Newbie
 
Member#: 1317
Join Date: Apr 2000
Location: Canada
Post

Does anyone else hear this ringing sound after removing their intake silencers?
legalistic is offline   Reply With Quote
Old 04-25-2000, 09:59 PM   #18
silverSurfer
Scooby Specialist
 
Member#: 1361
Join Date: Apr 2000
Chapter/Region: Tri-State
Location: Used to be Long Island/NYC...
Vehicle:
1999 Legacy GT Ltd.
2006 Rav4 Sport Silvarrr

Post

Hey!

I just performed that Right fender airbox/baffle removal. Seems to help a little/sounds a little more aggresive. I'll wait until I replace the OEM filter with a K&N one before I submit my final opinion.

One slight annoyance from the removal. A whining/high pitch sound occurs from the new airbox intake hole. It's not noticable during throttle but Damn if it isn't annoying while idling. Anyone have a good solution to rectify this annoyance? I really don't wanna put back in the baffle just to get rid of the noise. I was thinking of running some sort of duct to perhaps "baffle" that whine. Similar to what the OEM extra airbox does but obviously not as restrictive?

I'd appreciate any comments on this! =

-chris
silverSurfer is offline   Reply With Quote
Old 04-28-2000, 05:20 AM   #19
Flatfour
Scooby Newbie
 
Member#: 906
Join Date: Feb 2000
Location: Austin TX
Thumbs up

I did this mod a while ago on my Turbo and went 1 step further and custom piped the air right from the old "fog light" hole in the bumper up to the stock air box with a K+N oil filter in it,In effect "Ram-Air". This is noticeably more powerful than ANY underhood "hot air" system I tried.I added holes to the pipe I made out of concern for water coming in and have never even dampened the filter after driving though fairly heavy rain.I would not run through deep puddles, or off road with the system though..
I beleive the mod benefits Turbos quite a bit more than the non's.
Flatfour 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
Yes an intake question...which "big" intakes fit w/TXS FMIC? Wrx_Fan_0717 Factory 2.0L Turbo Powertrain 7 11-30-2008 12:10 AM
cold air intake question Norris Normally Aspirated Powertrain 24 06-06-2001 10:08 AM
MY99 Intake question? BuRnToAsT420 Normally Aspirated Powertrain 11 06-04-2001 12:31 AM
Intake Question CRZ_MSL SVX Forum Archive 4 11-29-2000 03:59 PM
Weapon R intake Question Install finnstr New England Impreza Club Forum -- NESIC 0 04-23-2000 10:03 AM


All times are GMT -4. The time now is 01:13 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.