2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
Sponsored by:

S4 N/A Emissions removal question.

Thread Tools
 
Search this Thread
 
Old 05-31-07, 06:31 PM
  #1  
Card-carrying Rotorhead

Thread Starter
 
Unseen24-7's Avatar
 
Join Date: May 2006
Location: Manitoba, Canada
Posts: 457
Likes: 0
Received 0 Likes on 0 Posts
S4 N/A Emissions removal question.

I'd like to remove the Air pump, ACV, BAC, EGR, and maybe the AWS (sounds kinda tricky). Can i remove JUST these things, or are there more things i need to consider?

And what am i all going to need for this, just block off plates, gaskets and hose caps?
Old 05-31-07, 06:38 PM
  #2  
Rotary Freak

 
RotaMan99's Avatar
 
Join Date: Dec 2006
Location: New Hampshire
Posts: 1,791
Likes: 0
Received 0 Likes on 0 Posts
You need block off plates for the ACV and EGR. Do not remove the BACV as it has no relation to the emmisions control system. AWS is for the 3000rpm start up, you can disconnect this, remove it and cap the intake mani and cap the metal tube that the hose for the AWS comes from.

If you remove the air pump, ACV and EGR, you will need to remove the CATs in the exhaust. Otherwise they will get clogged up.

You may also need to find a way to open up the AUX ports after removing the CATs.
Old 05-31-07, 06:39 PM
  #3  
^Hold On

 
freemanrx7's Avatar
 
Join Date: Mar 2007
Location: eureka
Posts: 1,331
Likes: 0
Received 1 Like on 1 Post
look

You cant remove the air pump cause that's what opens the 5th and 6th ports! There is a way to modify that though.
Old 05-31-07, 08:52 PM
  #4  
Card-carrying Rotorhead

Thread Starter
 
Unseen24-7's Avatar
 
Join Date: May 2006
Location: Manitoba, Canada
Posts: 457
Likes: 0
Received 0 Likes on 0 Posts
oh ya i should mention that im hoping to pick up a RB header/collector and RB presilencer with the 6pi pick up tube.
Old 05-31-07, 09:16 PM
  #5  
HAILERS

 
HAILERS's Avatar
 
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 21 Likes on 19 Posts
Originally Posted by freemanrx7
You cant remove the air pump cause that's what opens the 5th and 6th ports! There is a way to modify that though.
That only applies to series five. Not series four.
Old 06-01-07, 06:07 AM
  #6  
Rotary Freak

 
Syonyk's Avatar
 
Join Date: Jun 2004
Location: Ames, IA
Posts: 2,718
Likes: 0
Received 1 Like on 1 Post
Originally Posted by Unseen24-7
I'd like to remove the Air pump, ACV, BAC, EGR, and maybe the AWS (sounds kinda tricky). Can i remove JUST these things, or are there more things i need to consider?
Do you still have the catalytic converters? If you pull the air pump/ACV, you can melt/clog the cats in fairly short order.

You mention getting the RB header/presilencer/etc - that setup will replace the cats. If you do still have the cats, you should probably wait until you get those parts installed before removing the air pump/etc.

-=Russ=-
Old 06-01-07, 12:36 PM
  #7  
Card-carrying Rotorhead

Thread Starter
 
Unseen24-7's Avatar
 
Join Date: May 2006
Location: Manitoba, Canada
Posts: 457
Likes: 0
Received 0 Likes on 0 Posts
Do you still have the catalytic converters? If you pull the air pump/ACV, you can melt/clog the cats in fairly short order.

You mention getting the RB header/presilencer/etc - that setup will replace the cats. If you do still have the cats, you should probably wait until you get those parts installed before removing the air pump/etc.
ya i will definately be waiting until i get the header, but if all else fails i'll just knock out the cats, and hook up the 6pi in some other way.
Old 06-01-07, 02:21 PM
  #8  
Crash Auto?Fix Auto.

iTrader: (3)
 
classicauto's Avatar
 
Join Date: May 2003
Location: Hagersville Ontario
Posts: 7,831
Likes: 0
Received 2 Likes on 2 Posts
Originally Posted by Unseen24-7
I'd like to remove the Air pump, ACV, BAC, EGR, and maybe the AWS (sounds kinda tricky). Can i remove JUST these things, or are there more things i need to consider?

And what am i all going to need for this, just block off plates, gaskets and hose caps?
http://www.rotaryresurrection.com/2n...s_removal.html
Old 06-01-07, 02:34 PM
  #9  
Junior Member
 
2988008's Avatar
 
Join Date: Feb 2007
Location: Under my car!
Posts: 13
Likes: 0
Received 0 Likes on 0 Posts
Great link!
Thanks!
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ZacMan
Build Threads
4
09-19-15 09:20 PM
mulcryant
2nd Generation Specific (1986-1992)
10
09-09-15 05:24 PM
risingsunroof82
1st Generation Specific (1979-1985)
8
09-07-15 01:11 PM



Quick Reply: S4 N/A Emissions removal question.



All times are GMT -5. The time now is 05:41 PM.