What the heck is this little box thing???
Thread Starter
Junior Member
Joined: Aug 2009
Posts: 7
Likes: 0
From: Reynoldsburg, ohio
Car: 1987 Pontiac Trans Am
Engine: 5.7/350
What the heck is this little box thing???
Hey ppl!!! I have 2 questions I got an 87 TA, fuel injected with a 350...So a friend told my cousin, who has the same car, that this box, or whatever it is, is junk and he's gonna rip it out, but he failed to tell him what it is and what it does, any ideas??? Could I just leave it off or not??
Question #2....I've been reading previos posts about deleting the AIR pump, and this could very well be a silly ? but is everyone just plugging their air check valve or taking it off and pluggin the pipe??
Question #2....I've been reading previos posts about deleting the AIR pump, and this could very well be a silly ? but is everyone just plugging their air check valve or taking it off and pluggin the pipe??
Junior Member
Joined: Aug 2009
Posts: 63
Likes: 0
From: Montana
Car: 1985 Iroc Camaro, 1974 type LT Z28
Engine: modified L98 corvette, L82
Transmission: 700r4, Turbo 400
Axle/Gears: 3.42, 3.42 posi
Re: What the heck is this little box thing???
It looks to me like something to do with air pump. I removed mine on 1985 IROC and plugged holes in exhaust manifolds. I have never had a problem since I removed all the air pump stuff.
Junior Member
Joined: Aug 2009
Posts: 26
Likes: 0
From: spring valley
Car: 89 firebird 83 t/a
Engine: 305 tbi
Re: What the heck is this little box thing???
i have a 89 pontiac firebird with a 305 tbi i have the same thing in my car and i was wonderin could i take it out seal all the holes on the exaust manifold and the firewall?
would that efect my car ?
would that efect my car ?
Senior Member
Joined: Mar 2006
Posts: 926
Likes: 1
From: CALI
Car: 85' Trans Am !best car ever!
Engine: 305tpi 215hp LB9 two bolt,
Transmission: th-700r4
Axle/Gears: stock (3.27)
Re: What the heck is this little box thing???
thats a $300 dollar part haha. you can make some stratch with that on the classifieds board. its called an A.I.R diverter. its required to pass emissions in Cali. Unless you find somebody cool to pass you (usually a run down smog check business) its controlled by the computer and has a two solenoids inside. Basically, when the car starts, the computer routes air from the pump to the headers, and when the O2 sensor hit 600F* and the car goes into closed loop mode, the computer then diverts the air to the Cat. You remember seeing all those tubes and check valves that go in the the Exhaust manifolds right? you should be okay, but may run into problems. I know some people who ripped out the exhaust manifold and ditch the air system. they didnt pass smog/visual. but because it occurs after the combustion process its doesnt affect the performance. BUt by deleting the smog pump, youll actually gain like 5HP. i did that with a AC compresor. better gas milage too. but without emissions it wont pass though.
Id put a blower on my ride with fuel injection still but damn **** inspections
Id put a blower on my ride with fuel injection still but damn **** inspections Last edited by transam85dudeman; Aug 26, 2009 at 12:21 PM.
Supreme Member
Joined: Jul 2005
Posts: 2,123
Likes: 0
From: North Central Mass.
Car: 1985 Berlinetta
Engine: Megasquirted TPI
Transmission: Transgo 700R4
Axle/Gears: 3.42
Re: What the heck is this little box thing???
Unless you live in a state where you are exempt (like me
) leave it alone
) leave it alone Senior Member
Joined: Jun 2008
Posts: 1,298
Likes: 2
From: Norfolk VA
Car: 85 Camaro IROC
Engine: 5.7 TPI
Transmission: 700-R4
Axle/Gears: open rear, 3.42 gears
Re: What the heck is this little box thing???
thats a $300 dollar part haha
and i almost threw it out.
cha ching!
mine was just dangling in the engine bay when i got the car, i had no idea what it was and threw it in the back of the garage
Trending Topics
Senior Member
Joined: Nov 2005
Posts: 670
Likes: 1
From: Michigan
Car: 1984 Camaro Berlinetta
Engine: 355
Transmission: Th-350
Axle/Gears: 3.23
Re: What the heck is this little box thing???
The AC compressor draws no power and doesn't effect fuel mileage at all so long as the ac is off. It's connected to the pulley system via an electromechanical clutch.
Supreme Member
iTrader: (10)
Joined: Oct 2007
Posts: 1,881
Likes: 2
From: Fl.
Car: 83 Trans Am / 96 Jeep XJ
Engine: 355 / 4.0 I6
Transmission: TH350 / Auto
Axle/Gears: 3.23 10-bolt / 4wd
Re: What the heck is this little box thing???
I havent heard anywhere that its a $300 part. But if thats true, I have one for sale.
Member
Joined: Nov 2005
Posts: 428
Likes: 0
From: Edmonton, AB
Car: '87 Z-28
Engine: LT1-topped 400
Transmission: T56
Axle/Gears: 3.42
Re: What the heck is this little box thing???
Yeah, selling mine too... lol, I'll even let it go for $150 shipped :P
Last edited by el_muerte; Aug 27, 2009 at 01:20 AM.
Junior Member
Joined: Aug 2009
Posts: 66
Likes: 0
From: Texas
Car: 1986 Iroc-z Camaro
Engine: 305 TPI
Transmission: 700r4 Automatic
Re: What the heck is this little box thing???

I honestly doubt thats a 300$ part but I could be wrong, haven't researched it.



Senior Member
Joined: Mar 2006
Posts: 926
Likes: 1
From: CALI
Car: 85' Trans Am !best car ever!
Engine: 305tpi 215hp LB9 two bolt,
Transmission: th-700r4
Axle/Gears: stock (3.27)
Re: What the heck is this little box thing???
Last edited by transam85dudeman; Aug 29, 2009 at 11:19 AM.
Senior Member
Joined: Mar 2006
Posts: 926
Likes: 1
From: CALI
Car: 85' Trans Am !best car ever!
Engine: 305tpi 215hp LB9 two bolt,
Transmission: th-700r4
Axle/Gears: stock (3.27)
Re: What the heck is this little box thing???
i like this board a lot better than the BMW board. theyre a bunch of snot heads. of coarse they are. they bash on 3rd gen owners and such. i was trying get an answer to Y my bmw rocks back and forth in a turn, and a marjority of them bash on my TA. saying crap like its me the driver causing the problems and its me the driver thats at fault. then every so often a cool dude would actually give advice. makes me sick. TA for life baby
Junior Member
Joined: Aug 2009
Posts: 66
Likes: 0
From: Texas
Car: 1986 Iroc-z Camaro
Engine: 305 TPI
Transmission: 700r4 Automatic
Re: What the heck is this little box thing???
i like this board a lot better than the BMW board. theyre a bunch of snot heads. of coarse they are. they bash on 3rd gen owners and such. i was trying get an answer to Y my bmw rocks back and forth in a turn, and a marjority of them bash on my TA. saying crap like its me the driver causing the problems and its me the driver thats at fault. then every so often a cool dude would actually give advice. makes me sick. TA for life baby
Member
Joined: Nov 2005
Posts: 428
Likes: 0
From: Edmonton, AB
Car: '87 Z-28
Engine: LT1-topped 400
Transmission: T56
Axle/Gears: 3.42
Re: What the heck is this little box thing???
i like this board a lot better than the BMW board. theyre a bunch of snot heads. of coarse they are. they bash on 3rd gen owners and such. i was trying get an answer to Y my bmw rocks back and forth in a turn, and a marjority of them bash on my TA. saying crap like its me the driver causing the problems and its me the driver thats at fault. then every so often a cool dude would actually give advice. makes me sick. TA for life baby
Thread
Thread Starter
Forum
Replies
Last Post
1992rs/ss
Engine/Drivetrain/Suspension Parts for Sale
16
Jan 28, 2016 09:58 PM
Thirdgen89GTA
NW Indiana and South Chicago Suburb
0
Aug 20, 2015 03:11 PM





