Where to mount O2 sensor

[Ken911]

mine is a GHL duel out with no internals i put mine in the passenger side tube. Doesnt work below 2k unless i block off the other outlet. keeps sucking fresh air past it and i have 4 inch tips so to block the other side off i have to put a large soup can over the end and clamp it with hose clamps. When i do my EFI swap i'll be moving it to the spot between the turbo and the muffler.

[xbmwguy]

no when you go efi we will do a real muffler set-up and ditch the tin can.

[philip j]

I also have my O2 sensor on the muffler outlet side. I think when I install mt new turbo, it will go before the muffler. It works well where it is, but on cold startup it take about 15-20 seconds before I get a good reading. I think this is because it takes longer to heat the sensor. This didn't matter with cis, because the AFR adjustment wasn't there. Now with the efi I can adjust AFR every 250 rpm's and would like to know how rich I am running at startup.

[02fly]

Originally Posted by billjam

Mine is about a foot from the end of the tailpipe (which isn't fitted in pic).
I fitted a simple heat shield to protect the wiring from heat radiated from the turbo.
It is very easy to access in this location for the occasional calibration.

Any chance on getting a shot of the back of your car I love the slotted bumper