LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

where to put the o2 bungs on my lt1 headman longtubes?

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Old Nov 4, 2010 | 04:06 PM
  #1  
91camarosRS's Avatar
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Car: 02wrx/88 rs
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where to put the o2 bungs on my lt1 headman longtubes?

that says it all. i want to know where to put them so it doesnt rub or anything. the motor and headers are out of the car now
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Old Nov 4, 2010 | 04:12 PM
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Car: 1988 Pontiac firebird
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Transmission: Built 700R4
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Re: where to put the o2 bungs on my lt1 headman longtubes?

when i was looking into doing LT's, i had gotten 2 collectors that had bungs welded in already. i guess it depends on how you route your y-pipe, or are you doing duals? i'd put them somewhere on the y-pipe close to the collectors.
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Old Nov 5, 2010 | 04:07 PM
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From: oklahoma
Car: 02wrx/88 rs
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Transmission: 4eat/waiting on a t56
Axle/Gears: 3.73
Re: where to put the o2 bungs on my lt1 headman longtubes?

i was trying to find a picture about what i want but the longtubes will y into a single. i would like to put them on the headers themselves. so do i go on top,side, bottom? lol(i obviously know that bottom wont work)
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Old Nov 5, 2010 | 04:59 PM
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From: San Angelo, TX
Car: 1988 Pontiac firebird
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Transmission: Built 700R4
Axle/Gears: 3.70 9 bolt
Re: where to put the o2 bungs on my lt1 headman longtubes?

what kind of y-pipe is it? all the one's i've seen have them going in from the side (the side closest to the motor/trans). it would be easier to wait until you have the motor and exhaust in the car before placing the 02's so that you don't run into any problems and have to plug holes and reweld.

if it's a perticular brand y-pipe, someone might be able to tell you what they did with theirs...
as for putting them in the headers, just put the headers on the engine and see where you have the clearence for them.
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Old Nov 11, 2010 | 09:38 PM
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Re: where to put the o2 bungs on my lt1 headman longtubes?

You'll want the O2's as close to where the pipes merge as possible. The further downstream the sensor is, the longer it takes to get hot and the less efficient they become. If you get them too far from the engine, they won't get hot enough at all and they will constantly throw your A/F ratio out of whack once the engine goes into closed loop.
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Old Nov 15, 2010 | 09:47 AM
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Re: where to put the o2 bungs on my lt1 headman longtubes?



with my heddmans i put them as close to straight up as possible and didnt have any clearance issues. These were longtubes with D ports.

~Steven
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Old Nov 15, 2010 | 02:20 PM
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From: oklahoma
Car: 02wrx/88 rs
Engine: 2.0L turbo/nothing yet!
Transmission: 4eat/waiting on a t56
Axle/Gears: 3.73
Re: where to put the o2 bungs on my lt1 headman longtubes?

Originally Posted by kthxbai


with my heddmans i put them as close to straight up as possible and didnt have any clearance issues. These were longtubes with D ports.

~Steven
This is exactly what i needed! Thanks! I have the same headers
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Old Dec 16, 2010 | 09:42 PM
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From: KS
Car: 91 Camaro RS
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Re: where to put the o2 bungs on my lt1 headman longtubes?

Originally Posted by kthxbai


with my heddmans i put them as close to straight up as possible and didnt have any clearance issues. These were longtubes with D ports.

~Steven



what headers is it? parts nbr??
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Old Dec 17, 2010 | 11:33 PM
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Re: where to put the o2 bungs on my lt1 headman longtubes?

heddman 68469

you can find them on summit.

~Steven
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Old Dec 19, 2010 | 10:19 AM
  #10  
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Re: where to put the o2 bungs on my lt1 headman longtubes?

Yay! Thanks for that part number Steven!

Originally Posted by 91camarosRS
This is exactly what i needed! Thanks! I have the same headers
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