I just got some super comp shorties from jethot but they have the a.i.r. bungs already welded in... I am removing my emissions crap though, so can this be capped or do I have to send them back and request them without a.i.r. tubes? I swear I am having the worst streak of luck, I can't wait til someone tells me that this can't be done...

 

well, you can cap them, but it is going to look like a$$. i had my edelbrocks capped and they looked terrible. i used a brass cap from a plumbing store.

have you installed them yet? if not, i would call jet hot and just be honest with them..tell them you ordered the wrong ones and see if they will agree to retun them. i dont see why they wouldn't.

you will be MUCH happier with the headers without the air tubes. i switched to SLPs without AIR and the look WAYYYYYYYY better than with the tubes sticking out.

-brian


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1991 Camaro RS
GMPP 350 HO crate engine - 454 TBI, MSD ignition, SLP exhaust, everything is new
700R4 - 2,400 stall converter, vette servo, shift kit
My car's webpage - z28boy.cz28.com
President - Central New York F-Body Association
Email - z28boy@twcny.rr.com
AIM - "Z28 Boy"

 

ya, cut them off and cap them with brass pipe caps from Home Depot.

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-Tas
'89 Formula WS-6

305, TBI, 700R4, P.A.W. 14x3 open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips, Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248)
Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options

 

Just got them in the mail today, they look awesome, I sure would hate messing up that beautiful finish. I'm going to have to call jethot in the morning I guess *SIGH*

 

what do airtubes do guys????

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91 FireBird 305 V-8
Edelbrock Catback, Custom Alarm. Fourth Gen Console. i have six cupholders. all for starbucks!
Go|)Created The Earth, And Then Turned Up The Bass.
Here's My Audio Install!

"Honda's FOR ME TO POOP ON!" -Triumph...

 

A.I.R. stands for "air injection reaction." When you first start the car when cold, the ECM is in open loop, and the flow from the smog pump is routed to the A.I.R. tubes on the exhaust manifolds/headers - providing additional oxygen to help react any unburnt fuel coming out of the cylinders.
As the engine warms up, the ECM goes to closed loop, meaning the O2 sensor starts providing feedback to the ECM so the mixture ratio can be adjusted, reducing wasted gas and reducing bad emissions. In closed loop, the smog pump flow is shut off to the manifolds/headers, and routed instead to the cat to provide that extra oxygen to assist the cat in it's job of converting bad gases to more tolerable gases.

If you only ran your car when warm (i.e., never shut it off), the tubes to the manifolds/headers wouldn't be necessary.

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82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R4, 2300 stall TC. Ported World 305 heads, Crane PowerMax 2050 cam. ZZ3/4 intake, oil pump, pan & baffle. Accel HEI SuperCoil & module. Hooker 2055 headers, 3" Catco cat & 3" catback w/dual-opposite Flowmaster 80. 2.93 limited slip. Spohn SFCs waiting to be installed. AMSOIL syn lubes bumper-to-bumper. Daily year-round driver. Best ET, speed TBD...
57 Bel Air, my 1st car. '66 396, 9.7:1 forged TRWs, Weiand Action+, Holley 750VS w/4150 conversion, GK 270 cam, Magnum rockers, Jacobs Omnipack, 1-3/4" Hedders & 3" Warlocks, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, MegaShifter, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Idles smooth @ 700 RPM in D. Best 15.02/95.06 @ 5800' Bandimere (corrected 13.93/102.4 @ sea level).

 

I live in New York.... Do I need Air Tubes to pass Emissions or is it a neccessity?

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87 IROC-Z, 3.23 posi, new 305 TPI, and soon to get new trans and world torquer 305 heads

 

It depends on the county and on whether or not your mechanic inspects the car visually very throughly. You are SUPPOSED to have all the emissions equipment but then it's not always necessary...

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84 stock Z-28 V8 305 H.O.
1/8 10.328@66.06
1/4 16.246@80.82 phear!