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Best Placement for O2 Bung? #234062
02/23/09 06:37 PM
02/23/09 06:37 PM
Joined: Sep 2005
Posts: 6,235
san diego
JonsGottaDusta Offline OP
master
JonsGottaDusta  Offline OP
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san diego
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

Re: Best Placement for O2 Bung? [Re: JonsGottaDusta] #234063
02/23/09 06:49 PM
02/23/09 06:49 PM
Joined: Dec 2007
Posts: 10,542
BROOK PARK, OH
WILD BILL Offline
Senior Member of the Junior Dragster Club
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BROOK PARK, OH
If I'm not mistaken I think most people put them in the collector.

Re: Best Placement for O2 Bung? [Re: WILD BILL] #234064
02/23/09 07:27 PM
02/23/09 07:27 PM
Joined: Oct 2004
Posts: 3,097
back in Georgia
dthemi Offline
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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.

Re: Best Placement for O2 Bung? [Re: JonsGottaDusta] #234065
02/23/09 07:35 PM
02/23/09 07:35 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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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

Re: Best Placement for O2 Bung? [Re: JonsGottaDusta] #234066
02/23/09 07:44 PM
02/23/09 07:44 PM
Joined: Jan 2007
Posts: 160
Florida
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hemisurfer Offline
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Florida
It should be placed in your bung hole.


Chris
Re: Best Placement for O2 Bung? [Re: hemisurfer] #234067
02/23/09 09:18 PM
02/23/09 09:18 PM
Joined: Sep 2005
Posts: 6,235
san diego
JonsGottaDusta Offline OP
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san diego
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.

-

Re: Best Placement for O2 Bung? [Re: hemisurfer] #234068
02/23/09 09:23 PM
02/23/09 09:23 PM
Joined: Nov 2008
Posts: 671
Wisconsin USA
B
Bill MeLater Offline
mopar
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mopar
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Posts: 671
Wisconsin USA
Enough can't be said for stating the obvious...Three thumbs up

Re: Best Placement for O2 Bung? [Re: Bill MeLater] #234069
02/23/09 09:28 PM
02/23/09 09:28 PM
Joined: Sep 2005
Posts: 6,235
san diego
JonsGottaDusta Offline OP
master
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Posts: 6,235
san diego
Quote:

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




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


Re: Best Placement for O2 Bung? [Re: JonsGottaDusta] #234070
02/23/09 09:32 PM
02/23/09 09:32 PM
Joined: Jan 2003
Posts: 3,675
South San Francisco, Ca
70sixpkrt Offline
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Anybody have pics? Is it best to have two(1 in each header) or will 1 be sufficient?


[img]http://www.imgur.com/hxlGUJt.gif[/img]
4-speed
3:54 Dana
13.01 @107.93 with street tires (not hooking up)
Re: Best Placement for O2 Bung? [Re: 70sixpkrt] #234071
02/23/09 09:45 PM
02/23/09 09:45 PM
Joined: Sep 2005
Posts: 6,235
san diego
JonsGottaDusta Offline OP
master
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san diego
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.

Re: Best Placement for O2 Bung? [Re: JonsGottaDusta] #234072
02/23/09 09:50 PM
02/23/09 09:50 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
Master
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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

Re: Best Placement for O2 Bung? [Re: JonsGottaDusta] #234073
02/23/09 09:50 PM
02/23/09 09:50 PM
Joined: Oct 2004
Posts: 3,097
back in Georgia
dthemi Offline
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back in Georgia
You have to look close, but you can see both mine near the tranny pan.

Re: Best Placement for O2 Bung? [Re: MR_P_BODY] #234074
02/24/09 12:40 AM
02/24/09 12:40 AM
Joined: Jan 2007
Posts: 160
Florida
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hemisurfer Offline
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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 ...

Last edited by hemisurfer; 02/24/09 12:41 AM.
Re: Best Placement for O2 Bung? [Re: hemisurfer] #234075
02/24/09 12:49 AM
02/24/09 12:49 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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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

Re: Best Placement for O2 Bung? [Re: MR_P_BODY] #234076
02/24/09 12:53 AM
02/24/09 12:53 AM
Joined: Jan 2007
Posts: 160
Florida
H
hemisurfer Offline
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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.


Chris
Re: Best Placement for O2 Bung? [Re: hemisurfer] #234077
02/24/09 01:08 AM
02/24/09 01:08 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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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)

Re: Best Placement for O2 Bung? [Re: MR_P_BODY] #234078
02/24/09 02:24 AM
02/24/09 02:24 AM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Cab_Burge Online work
I Win
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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


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Best Placement for O2 Bung? [Re: Cab_Burge] #234079
02/24/09 11:14 PM
02/24/09 11:14 PM
Joined: Nov 2003
Posts: 2,131
New Lenox IL
cudadon Offline
top fuel
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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

5051031-DSC00100.JPG (100 downloads)
Re: Best Placement for O2 Bung? [Re: cudadon] #234080
02/24/09 11:25 PM
02/24/09 11:25 PM
Joined: Mar 2003
Posts: 15,478
the boonies
aarcuda Offline
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the boonies
i have mine in a small section of pipe at 10 oclock just after the collector/reducer

Re: Best Placement for O2 Bung? [Re: aarcuda] #234081
02/25/09 12:02 AM
02/25/09 12:02 AM
Joined: Apr 2005
Posts: 12,271
Overpriced Housing Central
RobX4406 Offline
I Live Here
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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.

Re: Best Placement for O2 Bung? [Re: RobX4406] #234082
02/25/09 12:12 AM
02/25/09 12:12 AM
Joined: Mar 2003
Posts: 15,478
the boonies
aarcuda Offline
I Live Here
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Posts: 15,478
the boonies
i'll have it back to you in about 3 weeks. I have the intake off right now and will be putting it back on this weekend. I figure the track will be open in 3 weeks and I'll get some runs in with it (i added a 50cc pump to cure the lean condition as I stomp on the pedal- hopefully it works).

but ya, I know- NO RUNNING THE ENGINE WITHOUT THE
METER HOOKED UP (or the sensor removed)

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