TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

A.I.R. and my TBI

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Old Dec 14, 2004 | 10:43 PM
  #1  
RebelRacer's Avatar
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From: Chouteau, OK
Car: Bitchin' 92 RS
Engine: 350 TPI
Transmission: 700R4
A.I.R. and my TBI

Hey guys, I got some quick questions.
What is AIR and what does it do for my LO3? What will it effect if I pull it off?

thanks,
Kyle
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Old Dec 14, 2004 | 10:47 PM
  #2  
Dewey316's Avatar
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From: Portland, OR www.cascadecrew.org
Car: 1990 Camaro RS
Engine: Juiced 5.0 TBI - 300rwhp
Transmission: T5
Axle/Gears: 3.42 Eaton Posi, 10 Bolt
It is for emmisions. It injects air into the exaust stream (or catylist) to help aid in the reaction in the CAT, so that it burns more of the unburnt fuel in the exuast.

It won't have much of a performance change by removing it, but it is illegal to remove or tamper with emmissions equipment.
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Old Dec 14, 2004 | 11:02 PM
  #3  
My Black 1991's Avatar
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Joined: Mar 2004
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From: Joliet, IL
Car: 1991 Pontiac Firebird
Engine: 305 TBI
Transmission: 700-R4
Axle/Gears: 2.73?
As quoted from Chilton's, "AIR or Air Injection Reaction System is used to provide additional oxygen to continue the combustion process after the exhaust gases leave the the combustion chamber. Air is injected into either exhaust port(s), the manifold(s) or the catalytic converter by an engine driven pump or smog pump. The AIR system helps reduce Hydrocarbons (HC) and Carbonmonoxide (CO) content into the exhaust gases by injecting air into the exhuast ports during cold engine startup. The air injection helps the cat to reach the proper temp quicker during warmup. When the engine is warm, the AIR system injects air into the beds of a 3 way converter to lower the HC and CO content in the exhaust."

Components
-Smog pump or AIR pump driven by engine
-AIR control valves (check valves, switches, etc)
-Air flow and hoses
-Dual-bed 3 way cat

If you take it off, your engine will pollute a little more than it should and it will be considered illegal to drive daily unless it is used for racing use or something. It might make an increase in hp if you ditch it but you can add lots of mods that are 50 state legal and still keep it if you are going to drive it a lot. This is just my opinion but read what other people have to say too
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Old Dec 15, 2004 | 07:11 AM
  #4  
RebelRacer's Avatar
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Joined: Sep 2004
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From: Chouteau, OK
Car: Bitchin' 92 RS
Engine: 350 TPI
Transmission: 700R4
well I live in OK, so we don't deal with inspection. I was just looking at how much that clogs up my engine bay. oh well I guess I can live with it.

Kyle
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Old Dec 16, 2004 | 04:09 AM
  #5  
nidyanazo's Avatar
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Joined: Sep 2004
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From: Laguna Beach, Ca
Car: Gutted 92' RS TRACK ONLY / '86 Mustang gt 'vert / 1982 Yamiaha xs400 Cafe Racer
Engine: L03; TBI is IT! / 5.0HO (306) SFI / 400cc air cooled twin
Transmission: 700-r4 / WCT5/ 6-speed close ratio
No! Get rid of it! You're right, it IS ugly.
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Old Dec 16, 2004 | 03:55 PM
  #6  
azvolfan's Avatar
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From: Avondale, AZ
Car: currently thirdgenless!!!
It gives you no power advantage by taking it off. So why not do your part for the environment and keep it on the car.
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Old Dec 17, 2004 | 03:27 PM
  #7  
AJ_92RS's Avatar
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Joined: Apr 2001
Posts: 4,969
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From: USA
Car: yy wife, crazy.
Engine: 350, Vortecs, 650DP
Transmission: TH-350
Axle/Gears: 8.5", 3.42
Or better yet, sell your car, ride your bike and hug a few trees on the way to work.
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Old Dec 17, 2004 | 03:43 PM
  #8  
BronYrAur's Avatar
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Joined: Jun 2002
Posts: 1,843
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From: Chicago, IL
Car: 91 Camaro RS Convertible
Engine: 305 TBI
Transmission: 5-Speed
Axle/Gears: 3.42
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