placement of O2 sensor on 3.0 SC

[sozaysven]

I am doing a ITB project on a 3.0 SC with stock crossover exhaust. I want to put an O2 on each bank. What is my best location and method?

[MichaelSJackson]

The later SC model had an O2 sensor. Look at the parts diagram (in the PET) for Porsche's location? I think they only had a single sensor after the collector for the two sides.

I think the stock crossover exhaust is going to choke off the gains from the ITB setup?

'78 SC/w EFI and SSIs

[icarp]

4-6" inches past the three tube collector on each exhaust bank.
15-40* degrees of angle from horizontal , make sure you will be able to remove the exhaust valve cover for each placement .
Not a tough job , just think about placement
Mark it an drill it, then weld in the bung
Ian

[sozaysven]

Thanks Ian. What type of metal am I working with? It looks like stainless in those sections.