Im just wondering where the best place to have the O2 sensor bung welded in. Headers? Down pipe? Muffler pipes? Or does it really even matter?

 

You don't have a bung on your header/downpipe/exhaust manifold (whatever you have) already? Or are you welding in a second one? Is this for a narrowband AF gauge or wideband?

 

Hasn't it been said that the closer to the exhuast port on the engine, the better?

For a turbo setup I would think the best and easiest place to put it would be right at the begining of the downpipe. You don't want to drill a hole in the exhaust manifold and put it there, and its also not gonna work if its a divided manifold.

 

well i do have the pontiac 305 in my 7 with no sensors, so i wasn't sure. And the gauge is a narow band made by summit racing

 

Murder she wrote. Isn't there a different thing like.... maybe a pontiac forum?

 

maybe I thought that since where you mount a A/F gauge is basically the same on all engines and since my car is a RX7 and this forum is titled RX7CLUB.COM that I could get some help with a very basic question which could be easily awnsered by anyone with an A/F gauge, but thanks for you advice, Wankel7 too bad you are so ignorant

http://dictionary.reference.com/search?q=ignorant

 

It depends, some wide band sensor, are heat sensitive; so if you place them really close to the turbo manifold, they won't last very long.

 

Thanks, Ill call summit tomorrow to ask about the specs of the sensor

 

Since you said it is a narrow band just put it where every other car make puts it... close to the exhaust port.

Kinda a waste of money on buying that narrow band meter.

Never the less....rx7club is a rotary forum....

not a piston forum

You don't like my opinion....i dont like yours.....

Gotta love the internet

 

I would put it where the exhaust ports on one bank first collect. That way you don't get a bad read from one cylinder, but you get an average of the 4 on that bank.

 

if you have the 02 sensor already in ( which you have )

you can put the wire onto one in the ecu - the search facility is your best friend

good luck

stu

 

for wideband I would place it at my midpipe probably or maybe even further than that so that the heat isn't as bad as close the turbo thus making the sensor last a hole lot longer. Other than that if it's a narrow band you can place it I believe 2 to 3" away from the exhaust manifold.