basically what the topic says. i just got a aftermarket header and i need to weld in 2 oxygen sensors and just wanted a few pics to show were/how to place them. i know that they go at were the 1-4 and 2-3 come together i just want to see a few pics. thanks

 

this is what it looks like on a stock exhaust manifold:

 

man just use the bung down by the car.....and install a heated a sensor....i did..and i love it

 

i know what it looks like on a stock header, i was wondering how you position them on an aftermarket. should one for 2-3 be pointing towards the passenger side and the 1-4 be pointing toward the driver or CAN the bost be pointing toward the passenger side.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by daidilus &raquo;</TD></TR><TR><TD CLASS="quote">man just use the bung down by the car.....and install a heated a sensor....i did..and i love it</TD></TR></TABLE>
im not sure what you mean by down by the car, but anyhow i am going to use two sensors (not some ghetto rig job) and i know were they go i just yould like some pics to show the positioning of them.

 

I don't think it matters which way they point except for the fact that they may not reach their corresponding plugs on the harness. What matters is which cylinders they sample. i.e. 1/4 and 2/3

 

well them not reaching is one of my concerns, thats why i was hoping to get some pics.

 

dude its wire.
add some extra wire if it doesn't reach. and don't tell me it's ghetto b/c you can do it real clean with solder and heatshrink wrap, etc to make it so you can't even tell it's not oem.

 

wow is the oem b16a sir 1 header a 4-2-1???

 

D16A6_HF: yes it is 4-2-1 but that cast top piece weighs about 600 pounds...roughly.
Yeah, it is a decent OEM design, and cast iron is literally bulletproof. No worries about cracking, etc like stainless steel.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KFBhonda &raquo;</TD></TR><TR><TD CLASS="quote">dude its wire.
add some extra wire if it doesn't reach. and don't tell me it's ghetto b/c you can do it real clean with solder and heatshrink wrap, etc to make it so you can't even tell it's not oem.</TD></TR></TABLE>
no, i don't think thats ghetto. actually thats what i think im going to end up doing. one pointing to the left the other to the right and the one pointing to the right (driver) will probably need a little length of wire soldered in.
i was just trying to see if this was the way to do it or if there is another way to weld the bungs.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by D16A6_HF &raquo;</TD></TR><TR><TD CLASS="quote">wow is the oem b16a sir 1 header a 4-2-1???</TD></TR></TABLE>

Yup cast iron 4-2-1.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by coot_er &raquo;</TD></TR><TR><TD CLASS="quote">well them not reaching is one of my concerns, thats why i was hoping to get some pics.</TD></TR></TABLE>

Just add wire like the other guy said. it is just a one wire O2 sensor which is very easy to splice nicely with heatshrink.

 

Cool.
I did that exact thing for for my DC Sports 4-2-1.
You will defintely have to run some extra wire for the O2 sensor on the driver's side.
I even cut a little bit off a 'tab' sticking out of the bottom of the block, to make room for the O2 sensor. Aluminum smells bad when you use a die cutter to cut it.

 

so do it like the one on this page?
https://honda-tech.com/zerothread?id=993025

 

The header with the 2 bungs in that post looks good to me.

 

ok. well if anybody else knows of any other way to weld them please post, otherwise that is how im going to do it.

 

Yeah, pretty much.
I had a guy weld a couple bolt nuts on there and then drilled and tapped them for the O2 sensors.
But my 4-2-1 is an older style 2 piece.
Anyway, the effect is the same.

 

how is the flow on that header vs the dc or any other aftermarket?

edit

also i'm curious about people who get those chipped ecu's that eliminate the second o2 sensor. how does that affect anything? does this cause 2 cylanders to lean out as well?


Modified by D16A6_HF at 5:03 AM 2/21/2005