Welcome to the North American Subaru Impreza Owners Club Tuesday October 21, 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 06-23-2002, 11:40 PM   #1
jeffg
Scooby Guru
 
Member#: 2958
Join Date: Nov 2000
Chapter/Region: NWIC
Vehicle:
2001 WRX (GC8)

Default AC removal q's

I am interested in removing the AC compressor and condensor from my 2001 RS. I am wondering if there will be any ECU problems with this. I know that the defroster wants to kick on the AC in order to dry the air, so there must be some sort of switch.

Has anyone done this?

J
* Registered users of the site do not see these ads.
jeffg is offline   Reply With Quote
Old 06-24-2002, 12:27 AM   #2
rupteur7000
Scooby Specialist
 
Member#: 11585
Join Date: Oct 2001
Location: -TEAM 614- (Boston)
Vehicle:
02 2.5RS
i am also not a p****

Default

i have been wondering about that. but i came to the conlcusion that the actuall weight/ friction on the engine, when it is off, of course, is so minimal that it is not worth the trouble.

to answer your question: it shouldn't be a problem with the ECU just take the unit out, all the hoses, and the pulley, replace the belts with resized ones. and don't use your defrost mode!!
rupteur7000 is offline   Reply With Quote
Old 06-24-2002, 02:08 AM   #3
jeffg
Scooby Guru
 
Member#: 2958
Join Date: Nov 2000
Chapter/Region: NWIC
Vehicle:
2001 WRX (GC8)

Default

I actually removed the AC belt and tensioner and noticed a very small improvement in acceleration. Almost like 1/4 of a crank pulley

Anyone know about the ECU reaction to AC removal?

J
jeffg is offline   Reply With Quote
Old 06-24-2002, 08:33 AM   #4
bender
Scooby Specialist
 
Member#: 1839
Join Date: Jul 2000
Chapter/Region: VIC
Location: at home
Default

I don't think that the weight savings would be that much. it's probably the same as taking out your spare and jack
bender is offline   Reply With Quote
Old 06-24-2002, 11:08 AM   #5
jeffg
Scooby Guru
 
Member#: 2958
Join Date: Nov 2000
Chapter/Region: NWIC
Vehicle:
2001 WRX (GC8)

Default

The reason I am taking it out, is not really a weight one. Though the compressor is pretty heavy. Seriously, though, other than suggestions about why to take it out or not, does anyone know about actually doing it?

J
jeffg is offline   Reply With Quote
Old 06-24-2002, 12:57 PM   #6
Julian
Scooby Specialist
 
Member#: 1182
Join Date: Mar 2000
Location: Ventura, CA
Vehicle:
MY00 RS
BRP

Default

If you remove the system, the ECU won't throw a CE light or anything. Other than having no A/C, I wouldn't imagine there'd be any issues with removing it.
Julian is offline   Reply With Quote
Old 06-24-2002, 01:15 PM   #7
NGNIOUS
Scooby Newbie
 
Member#: 11771
Join Date: Oct 2001
Location: Chicago, IL
Vehicle:
2002 WRX
Blue w/LimoTints + Rotas

Default How?

Does anyone know how to remove it (like what should be taken out) or threads or links on how. I am looking into doing this but don't want to screw anything up.
:monkey:
NGNIOUS is offline   Reply With Quote
Old 06-24-2002, 01:20 PM   #8
HndaTch627
Scooby Guru
 
Member#: 6551
Join Date: May 2001
Chapter/Region: MWSOC
Location: Carol Stream, IL
Vehicle:
'01 GC8 Dinged STM
'09 Concours 14 ABS Black

Default

removing a/c=biggest waste of time...sorry but i don't like to sweat or have my windows fogged up when i drive. A/C doesn't steal horse power and the total system wegiht is prolly around 40-50 lbs max....to me there are other place to lighten the car before this.

just my $.02
HndaTch627 is offline   Reply With Quote
Old 06-24-2002, 01:21 PM   #9
Tim Smith
Scooby Newbie
 
Member#: 19147
Join Date: May 2002
Vehicle:
2002 Impreza RS
Alpine White

Default

The A/C system from my '92 escort weighted in at 85 lbs. That is counting the parts of the dash that was used to route the air (not including the heater ones though), the conpressor, condensor, exchanger, lines, hoses, switchs, mounting materials, belt, pulley, wiring and a little body work that was beefed up at the fire wall. Quite a bit of weight and coupled with the reduced drag on the engine, I noticed a HUGE differance.

The spare and jack only weighted about 37.
Tim Smith is offline   Reply With Quote
Old 06-24-2002, 01:42 PM   #10
jeffg
Scooby Guru
 
Member#: 2958
Join Date: Nov 2000
Chapter/Region: NWIC
Vehicle:
2001 WRX (GC8)

Default

At what point did anyone say they were removing it for weight savings? In the 2 years I have used my car, I have never once used the AC. The defrost in a concern, but I can deal with that.

Thank for the replies about ECU concerns.

J

PS: Just out of curiosity where would you remove weight from first?

Last edited by jeffg; 06-24-2002 at 01:58 PM.
jeffg is offline   Reply With Quote
Old 06-25-2002, 11:10 AM   #11
Julian
Scooby Specialist
 
Member#: 1182
Join Date: Mar 2000
Location: Ventura, CA
Vehicle:
MY00 RS
BRP

Default

Bang for the buck, remove the compressor and associated hoses, wiring, belt first. Easiest to accomplish.
Julian is offline   Reply With Quote
Old 06-25-2002, 11:46 AM   #12
HndaTch627
Scooby Guru
 
Member#: 6551
Join Date: May 2001
Chapter/Region: MWSOC
Location: Carol Stream, IL
Vehicle:
'01 GC8 Dinged STM
'09 Concours 14 ABS Black

Default

Quote:
Originally posted by jeffg
At what point did anyone say they were removing it for weight savings? In the 2 years I have used my car, I have never once used the AC. The defrost in a concern, but I can deal with that.

Thank for the replies about ECU concerns.

J

PS: Just out of curiosity where would you remove weight from first?
mount the battery in the passenger side of the trunk...that'll even out the weight distribution. Personally if i wanted to get rid of weight, i'd get seats(stock subaru seats seem to have pretty beefy supports)...then i'd get a nice driveshaft, then a nice set of wheels.

Jeremy
HndaTch627 is offline   Reply With Quote
Old 06-26-2002, 04:01 AM   #13
Bimmer
Scooby Newbie
 
Member#: 4116
Join Date: Feb 2001
Location: Humboldt County, CA
Vehicle:
2002 Impreza TS
White

Default Re: AC removal q's

Quote:
Originally posted by jeffg
I know that the defroster wants to kick on the AC in order to dry the air, so there must be some sort of switch.
J
This isn't my mod, but somebody else posted how to disable the automatic A/C with defrost function, there's a switch to disable (or a wire to cut) behind the HVAC controls in the dash. I think it was in a thread called "we need an electronics forum"
Anyways, they didn't report any problems after doing so...

IMHO, removing the A/C for a race car makes sense, but if this thing is supposed to remain streetable (and maybe eventually resaleable) I don't see the point...
If you wanted a Caterham 7 or something like that, then you should've bought one...

Ben
Bimmer is offline   Reply With Quote
Old 06-26-2002, 12:11 PM   #14
jeffg
Scooby Guru
 
Member#: 2958
Join Date: Nov 2000
Chapter/Region: NWIC
Vehicle:
2001 WRX (GC8)

Default

Well resale value be damned anyway.

In order to fit the spinny thing I want to put in there, something has to go. Power Steering, dont think so. Alternator, prolly not. I guess it has to be AC. Not that I have even turned it on in the 2 years since I bought this car.

If it comes time to sell the car somehow, and I need to put it back in, it all just bolts up, easy as pie.

J
jeffg is offline   Reply With Quote
Old 06-26-2002, 12:49 PM   #15
HndaTch627
Scooby Guru
 
Member#: 6551
Join Date: May 2001
Chapter/Region: MWSOC
Location: Carol Stream, IL
Vehicle:
'01 GC8 Dinged STM
'09 Concours 14 ABS Black

Default Re: Re: AC removal q's

Quote:
Originally posted by Bimmer


This isn't my mod, but somebody else posted how to disable the automatic A/C with defrost function, there's a switch to disable (or a wire to cut) behind the HVAC controls in the dash. I think it was in a thread called "we need an electronics forum"
Anyways, they didn't report any problems after doing so...

IMHO, removing the A/C for a race car makes sense, but if this thing is supposed to remain streetable (and maybe eventually resaleable) I don't see the point...
If you wanted a Caterham 7 or something like that, then you should've bought one...

Ben
that only applies to 2002+ impreza...the older ones has a user selsectable switch for the defroster. I just don't believe you need to remove the A/C in any car.

jeremy
HndaTch627 is offline   Reply With Quote
Old 06-27-2002, 11:30 AM   #16
Tangmere
Scooby Specialist
 
Member#: 572
Join Date: Nov 1999
Location: Boulder, Colorado
Default

Jeff,
I'm in the process of doing this on my STS-classed Impreza. Removing the AC from the car will save you 75lbs and thats a lot of weight off the front end. Combine that with moving the battery to the trunk and thats another 30lbs. Go to a gas station to have them evacuate the freon. Better for the environment. You will feel the difference in handling even if you're not doing it to save weight. You also might need to get the car aligned again. And whose (brand?) blower are you getting?

Mark
Tangmere is offline   Reply With Quote
Old 06-27-2002, 01:41 PM   #17
jeffg
Scooby Guru
 
Member#: 2958
Join Date: Nov 2000
Chapter/Region: NWIC
Vehicle:
2001 WRX (GC8)

Default

I have access to a Rotax unit, but I think I am going to try for an Eaton M62. We will have to see what I can get to work.

J
jeffg is offline   Reply With Quote
Old 06-27-2002, 01:44 PM   #18
Giova
Scooby Newbie
 
Member#: 1663
Join Date: Jun 2000
Location: Haverhill, Ma
Vehicle:
2000 Impreza RS
BRP

Default

If anyone has removed their condensor form their 2000-2001, I would be interested in taking it off your hands, if your willing to part with it. Please contact me here, by PM, via email polloloco@netway.com or call me 978 372 9013
Giova is offline   Reply With Quote
Old 06-27-2002, 01:46 PM   #19
HndaTch627
Scooby Guru
 
Member#: 6551
Join Date: May 2001
Chapter/Region: MWSOC
Location: Carol Stream, IL
Vehicle:
'01 GC8 Dinged STM
'09 Concours 14 ABS Black

Default

spare condensors=good things
HndaTch627 is offline   Reply With Quote
Old 06-27-2002, 04:23 PM   #20
Jack
Add Lightness
Moderator
 
Member#: 13699
Join Date: Dec 2001
Chapter/Region: NESIC
Location: Hopkinton, MA
Vehicle:
2007 Lotus Elise
(From General)

Default

Remove the "brick" from under the engine.

Jack up the car using a floor jack and the jacking plate on the frame cross member below the engine. Put jack stands in place. Lower the jack. Go to the plate that you just jacked the car up with. Remove the 4 bolts. Remove the plate. Below the plate is the "brick". Take it out, set it on your garage floor and put the plate back in. Amaze your friends by showing them the brick and asking them what it's for. I haven't yet weighed it, but estimate it to be about 5#.

There's reportedly another brick in/near the glove box. I have not yet found it.

As to moving the battery....my driver side weighs 1352#. Passenger side weighs 1350#. This was weighed at NHIS with 1/4 tank of gas and nobody in the car. Moving the batt would offset my weight some, but the added wiring will add weight.

jack
Jack is offline   Reply With Quote
Old 06-27-2002, 04:44 PM   #21
jeffg
Scooby Guru
 
Member#: 2958
Join Date: Nov 2000
Chapter/Region: NWIC
Vehicle:
2001 WRX (GC8)

Default

Since this is turning into a weight redeuction thread, here are the lightening mods that I have done already.

UoR crank pulley
Lightweight "racing" front and rear bumper beams
Brink removal - crossmember and glove box
90 visit membership to local gym - thought of this one while I was eating a Big Mac and taking the brink out of my glove box.
jeffg is offline   Reply With Quote
Old 06-28-2002, 03:57 PM   #22
Jack
Add Lightness
Moderator
 
Member#: 13699
Join Date: Dec 2001
Chapter/Region: NESIC
Location: Hopkinton, MA
Vehicle:
2007 Lotus Elise
(From General)

Default

Jeff!

Where exactly is the glovebox brick??? I found out about the 2 bricks when I hosted a garage day...but nobody actually knew where it was.

jack
Jack is offline   Reply With Quote
Old 06-28-2002, 04:14 PM   #23
jeffg
Scooby Guru
 
Member#: 2958
Join Date: Nov 2000
Chapter/Region: NWIC
Vehicle:
2001 WRX (GC8)

Default

I assume you are talking about the brick in the glove box. If you sit in the passanger side of your car, open the glove box.

On the lid you will see several phillips head screws I think there are 6? Take out all the phillips screws in the lid. Make sure you rest the lid on your knees as you do this, so that you dont break it. After all the screws are out the dask cover piece will come off and you will see the metal plate. It is heavy and will just fall out. Watch your toes.

J
jeffg is offline   Reply With Quote
Old 06-28-2002, 06:05 PM   #24
ciper
Scooby Guru
 
Member#: 15543
Join Date: Feb 2002
Location: san francisco, ca
Vehicle:
90BJ Legacy LS ABS
AWD 946 Rio Red Jpn built

Default

Why are there bricks all over the place on the car? They must serve some function, I dont see subaru spending extra money on a useless item.
ciper is offline   Reply With Quote
Old 06-28-2002, 08:36 PM   #25
obyone
Scooby Specialist
 
Member#: 16523
Join Date: Mar 2002
Chapter/Region: MWSOC
Location: Inbetween Hesco's and T-walls
Vehicle:
JDM Maxxpro

Default Re: Re: Re: AC removal q's

Quote:
Originally posted by HndaTch627
that only applies to 2002+ impreza...the older ones has a user selsectable switch for the defroster. I just don't believe you need to remove the A/C in any car.

jeremy

No offense or anything but I plan on removing the A/C on my Toyota. (when I get it fixed that is) It's just dead weight for that car anyways. No use in paying $700 for a new compressor and dryer when the car is only worth 8.
obyone is online now   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
AC removal newsubie05 Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 4 12-10-2008 12:29 PM
AC Removal/ Delete ejh25 Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 20 01-14-2008 08:50 AM
removing AC, pulley question Blase M Normally Aspirated Powertrain 2 04-03-2006 11:03 PM
ac removal? scoobydrew06 General Community 2 03-30-2004 07:11 PM
auto AC removal mod? asianboy101 Electrical & Lighting 1 02-01-2004 07:10 AM


All times are GMT -4. The time now is 01:06 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.