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#234062 - 02/23/09 03:37 PM Best Placement for O2 Bung?
JonsGottaDusta Offline


Registered: 09/06/05
Posts: 6231
Loc: Ca
Hey Everyone,
I am putting an 02 Sensor on my car and was wonder where it will give me the most accurate reading? I was thinking in the header collector, but wasn't sure. Let me know.

- Jon
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[color:"purple"]Home of the Powdered Jelly Duster[/color]

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#234063 - 02/23/09 03:49 PM Re: Best Placement for O2 Bung? [Re: JonsGottaDusta]
WILD BILL Offline
Senior Member of the Junior Dragster Club

Registered: 12/05/07
Posts: 10542
Loc: BROOK PARK, OH
If I'm not mistaken I think most people put them in the collector.
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WILD RACING

71 CHARGER, 9.953 @ 132.66 BEST PASS SO FAR
Power by Koffel's Place


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#234064 - 02/23/09 04:27 PM Re: Best Placement for O2 Bung? [Re: WILD BILL]
dthemi Offline
master

Registered: 10/31/04
Posts: 2850
Loc: back in Georgia
If the headers are not multiple piece, or slip on collector put it in the collector, just not in the 6 o'clock position. Any air that leaks in at slip joints will throw your reading way off, so if it's pieces put it in the lower part of a solid tube. and use that one cylinder as a guide. One piece headers are best for collector installs.

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#234065 - 02/23/09 04:35 PM Re: Best Placement for O2 Bung? [Re: JonsGottaDusta]
MR_P_BODY Offline
Master

Registered: 06/13/03
Posts: 51018
Loc: Romeo MI
In the collector... 3 oclock or 9 oclock so it doesnt
hold water, in front of the evac (up stream) if using
one but try to get it in the flow of all the tubes
for the best average reading, like was said slip on
collectors can cause air leaks and give a false reading
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W-9 8.94 @ 151 NOW ON E-85
Mike "Raff"...(180)Watching over us
CAR IS FOR SALE

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#234066 - 02/23/09 04:44 PM Re: Best Placement for O2 Bung? [Re: JonsGottaDusta]
hemisurfer Offline
member

Registered: 01/08/07
Posts: 154
Loc: Florida
It should be placed in your bung hole.
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Chris

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#234067 - 02/23/09 06:18 PM Re: Best Placement for O2 Bung? [Re: hemisurfer]
JonsGottaDusta Offline


Registered: 09/06/05
Posts: 6231
Loc: Ca
Quote:

It should be placed in your bung hole.




Funny "Best Placement for O2 Bung?"

Shoulda read the title.

I was wondering about the position, so thanks. These are 1 piece headers, and I am putting in a wideband. Thanks guys.

-
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[color:"purple"]Home of the Powdered Jelly Duster[/color]

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#234068 - 02/23/09 06:23 PM Re: Best Placement for O2 Bung? [Re: hemisurfer]
Bill MeLater Offline
mopar

Registered: 11/12/08
Posts: 669
Loc: Wisconsin USA
Enough can't be said for stating the obvious...Three thumbs up

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#234069 - 02/23/09 06:28 PM Re: Best Placement for O2 Bung? [Re: Bill MeLater]
JonsGottaDusta Offline


Registered: 09/06/05
Posts: 6231
Loc: Ca
Quote:

Enough can't be said for stating the obvious...Three thumbs up




Are you related to "flypaper"? You sound exactly like him... +3

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[color:"purple"]Home of the Powdered Jelly Duster[/color]

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#234070 - 02/23/09 06:32 PM Re: Best Placement for O2 Bung? [Re: JonsGottaDusta]
70sixpkRT Offline


Registered: 01/20/03
Posts: 3229
Loc: South San Francisco, Ca
Anybody have pics? Is it best to have two(1 in each header) or will 1 be sufficient?
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4-speed
3:54 Dana
13.01 @107.93 with street tires (not hooking up)

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#234071 - 02/23/09 06:45 PM Re: Best Placement for O2 Bung? [Re: 70sixpkRT]
JonsGottaDusta Offline


Registered: 09/06/05
Posts: 6231
Loc: Ca
Quote:

Anybody have pics? Is it best to have two(1 in each header) or will 1 be sufficient?




I was also wondering if one is good enough or not.
_________________________
[color:"purple"]Home of the Powdered Jelly Duster[/color]

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#234072 - 02/23/09 06:50 PM Re: Best Placement for O2 Bung? [Re: JonsGottaDusta]
MR_P_BODY Offline
Master

Registered: 06/13/03
Posts: 51018
Loc: Romeo MI
I just run 1... cant affort 2 wide bands. I make a
pass with it in 1 side then flip it to the other side
for the next pass... if all is well, I pull the sensor
and plug it
_________________________

W-9 8.94 @ 151 NOW ON E-85
Mike "Raff"...(180)Watching over us
CAR IS FOR SALE

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#234073 - 02/23/09 06:50 PM Re: Best Placement for O2 Bung? [Re: JonsGottaDusta]
dthemi Offline
master

Registered: 10/31/04
Posts: 2850
Loc: back in Georgia
You have to look close, but you can see both mine near the tranny pan.

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#234074 - 02/23/09 09:40 PM Re: Best Placement for O2 Bung? [Re: MR_P_BODY]
hemisurfer Offline
member

Registered: 01/08/07
Posts: 154
Loc: Florida
Agreed one for each side, run one side one pass then the next side. Lots of things can cause a need for jet stagger from side to side (intake/heads etc). I run mine at 9 and 3 O Clock on both sides. The car is street/strip so rather than mount it in the header I mounted it in the collector/reducer. I believe I read somewhere that the 02 sensor needs to reach a certain operating temp to work correctly, so put your bung hole as close to the collector as possible. Funny thread ...


Edited by hemisurfer (02/23/09 09:41 PM)

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#234075 - 02/23/09 09:49 PM Re: Best Placement for O2 Bung? [Re: hemisurfer]
MR_P_BODY Offline
Master

Registered: 06/13/03
Posts: 51018
Loc: Romeo MI
Quote:

Agreed one for each side, run one side one pass then the next side. Lots of things can cause a need for jet stagger from side to side (intake/heads etc). I run mine at 9 and 3 O Clock on both sides. The car is street/strip so rather than mount it in the header I mounted it in the collector/reducer. I believe I read somewhere that the 02 sensor needs to reach a certain operating temp to work correctly, so put your bung hole as close to the collector as possible. Funny thread ...




Most O2s now days have there own heaters
_________________________

W-9 8.94 @ 151 NOW ON E-85
Mike "Raff"...(180)Watching over us
CAR IS FOR SALE

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#234076 - 02/23/09 09:53 PM Re: Best Placement for O2 Bung? [Re: MR_P_BODY]
hemisurfer Offline
member

Registered: 01/08/07
Posts: 154
Loc: Florida
I did not know that, thats what happens when you get past 40; info over load. In that case I guess you could put your bung hole anywhere.
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Chris

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#234077 - 02/23/09 10:08 PM Re: Best Placement for O2 Bung? [Re: hemisurfer]
MR_P_BODY Offline
Master

Registered: 06/13/03
Posts: 51018
Loc: Romeo MI
If you look at how many wires it has, 4 or more wires
was a heater(the old single wire O2 didnt have a heater)
_________________________

W-9 8.94 @ 151 NOW ON E-85
Mike "Raff"...(180)Watching over us
CAR IS FOR SALE

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#234078 - 02/23/09 11:24 PM Re: Best Placement for O2 Bung? [Re: MR_P_BODY]
Cab_Burge Offline
I Win

Registered: 08/23/03
Posts: 32103
Loc: Bend,OR USA
I have mine in the exhaust pipe(street car) just after the collector on the full exhaust and another set in the colletor extensions for at the track testing with open headers, no difference in readings between the two I started out with a LM1 and then bought a FAST system with the dual wide band reading, I have since bought the LC1 upgrade for the LM1 do to its data logging and transferring ability which the FAST system does not have Thank twice and avoid buying twice
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Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

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#234079 - 02/24/09 08:14 PM Re: Best Placement for O2 Bung? [Re: Cab_Burge]
cudadon Offline
top fuel

Registered: 11/24/03
Posts: 2109
Loc: New Lenox IL
Here's where I have mine. Yes they are multi piece headers and slip on collectors and turndowns (where the bung is now)
I want your opions on where it SHOULD be please. Thanks, Don


Attachments
5051031-DSC00100.JPG (82 downloads)


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#234080 - 02/24/09 08:25 PM Re: Best Placement for O2 Bung? [Re: cudadon]
aarcuda Offline
I Live Here

Registered: 03/17/03
Posts: 15475
Loc: the boonies
i have mine in a small section of pipe at 10 oclock just after the collector/reducer

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#234081 - 02/24/09 09:02 PM Re: Best Placement for O2 Bung? [Re: aarcuda]
RobX4406 Offline
I Live Here

Registered: 04/19/05
Posts: 12271
Loc: Overpriced Housing Central
Quote:

i have mine in a small section of pipe at 10 oclock just after the collector/reducer




You done with that thing yet?

Don't run the O2 sensor unheated, you'll toast them quick.

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