New LS1 Owners - Newbie Tech Basic Technical Questions & Advice
Sponsored by:
Sponsored by:

How does the AIR system work?

Thread Tools
 
Search this Thread
 
Old Jul 7, 2004 | 07:19 PM
  #1  
Payne's Avatar
Thread Starter
TECH Apprentice
iTrader: (3)
 
Joined: Apr 2003
Posts: 380
Likes: 0
From: Stanford, CA
Default How does the AIR system work?

What does it do?

What parts make up it?

How would I install it in a RX7?

Any pics would be appreciated!

Thanks!

-Jason
Reply
Old Jul 7, 2004 | 07:30 PM
  #2  
MM98's Avatar
TECH Fanatic
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (13)
 
Joined: Dec 2003
Posts: 1,455
Likes: 2
From: Okc,OK
Default

The AIR system feeds fresh air into the cats helping to lower the emissions....It consists of an air pump, hoses, & two check valves... If you do not plan on running cats then don't worry about it.
Reply
Old Jul 7, 2004 | 07:36 PM
  #3  
Payne's Avatar
Thread Starter
TECH Apprentice
iTrader: (3)
 
Joined: Apr 2003
Posts: 380
Likes: 0
From: Stanford, CA
Default

I have to have the car CA smog legal, so I will have to run cats and the air system.

Is the pump electric? Is it controlled by the PCM I assume? Where does it get air from?
Reply
Old Jul 7, 2004 | 09:34 PM
  #4  
MM98's Avatar
TECH Fanatic
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (13)
 
Joined: Dec 2003
Posts: 1,455
Likes: 2
From: Okc,OK
Default

Yes it is electric & is controlled by the pcm.... It pulls outside air in with the use of a filter.
Reply
Old Jul 8, 2004 | 08:32 AM
  #5  
John Yoder's Avatar
Teching In
 
Joined: Jul 2003
Posts: 21
Likes: 0
From: Apple Valley
Default

The air pump only works on startup to help warm the cats up quickly to reduce the startup emissions. Once the car is warmed up there is no need for the air pump.
Reply
Old Jul 8, 2004 | 08:47 AM
  #6  
jyeager's Avatar
TECH Regular
 
Joined: Feb 2003
Posts: 451
Likes: 0
From: Spring Hill, TN
Default

I'm not optimistic that you can get the LS1 into the RX7 and still maintain EGR and AIR.
If you are doing this swap you really need the factory service manual for the vehicle that's donating the drivetrain. With this, all you AIR questions would be answered.

Go check out helms. http://www.helminc.com/helm/homepage.asp
Reply
Old Jul 8, 2004 | 01:12 PM
  #7  
steve2001sh's Avatar
On The Tree
 
Joined: Jun 2003
Posts: 150
Likes: 0
Default

You may not need AIR to pass emissions. Like they said, it only effects cold performance, so if you've been driving for a few minutes before your test, it won't show up in exhaust gas. It will throw an SES code unless you have PCM editing software to remove it, but I'm sure you'll need PCM software anyway to do this job. I don't know how california is, but many people remove AIR and still pass emissions fine.
Reply
Old Jul 8, 2004 | 11:30 PM
  #8  
JamRWS6's Avatar
TECH Resident
 
Joined: Feb 2003
Posts: 827
Likes: 0
From: Dallas, TX
Default

On a stock F-body the air is pulled from the air intake. After going to the pump and check valves it goes into the manifolds. It is controlled by the PCM.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
Old Jul 9, 2004 | 02:54 AM
  #9  
blkZ28spt's Avatar
11 Second Club
 
Joined: Feb 2003
Posts: 5,524
Likes: 1
From: The South
Default

Originally Posted by JamRWS6
On a stock F-body the air is pulled from the air intake. After going to the pump and check valves it goes into the manifolds. It is controlled by the PCM.
What are you referring to by "air intake" that the air is pulled from? It is just outside air as stated before. It does go from the pump to the manifolds, however. I think the best idea is to remove AIR/EGR. I finally did just that last night . Little LS1 Edit and no EGR, AIR, or Cats I can/will still pass emissions, ain't it great

I really don't think you will need the air system. Emissions tests are normally done with the car/cats properly heated, and proper editing will totally remove the code and still allow you to pass. Unless they pop the hood and do a visual to look for AIR/EGR (never heard of this) you won't need//want it.
Reply
Old Jul 9, 2004 | 07:46 AM
  #10  
jyeager's Avatar
TECH Regular
 
Joined: Feb 2003
Posts: 451
Likes: 0
From: Spring Hill, TN
Default

Actually, as I understand CA's emissions laws making practically ANY modification will void emissions. In fact, I think doing your engine swap will void the emissions in relation to CA's laws. One thing's for sure, if you have to use non-stock manifolds and Y pipe to fit that car (almost a certainty) then you've broken emission laws because they require that the cats be in the exact same location as OEM (unless you've got an exhaust system that itself was CARB certified).
That being said, I know that CA is a hotbed of hot-rodding. How do the guys that make custom rods deal with this? There must be some sort of exemption available. Whatever that is, it should allow you to transplant your engine, customize the exhaust, and remove AIR and EGR.
Reply
Old Jul 10, 2004 | 01:07 AM
  #11  
Tiger2o69's Avatar
11 Second Club
iTrader: (16)
 
Joined: May 2004
Posts: 2,223
Likes: 0
From: MS
Default

sorry to butt in,
so basically my air system is good for nothing and once i get headers i cant use it anyway right? I know people have taken them off for weight reduction but i thought they did a little more than that.
Reply
Old Jul 10, 2004 | 11:01 AM
  #12  
blkZ28spt's Avatar
11 Second Club
 
Joined: Feb 2003
Posts: 5,524
Likes: 1
From: The South
Default

Originally Posted by Tiger2o69
sorry to butt in,
so basically my air system is good for nothing and once i get headers i cant use it anyway right? I know people have taken them off for weight reduction but i thought they did a little more than that.
All the AIR system does, far as i'm concerned, is add weight to the nose of the car, complexity to the engine bay, and a stupid whining sound when it runs. Do not need it ESPECIALLY if you aren't running cats anyway. People remove it for weight savings (hey, the pounds add up) and so it's out of the way in the engine bay.
Reply




All times are GMT -5. The time now is 05:43 AM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE