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O2 sensor on a turbocharged motor
Posted: Sat Feb 18, 2012 6:24 am
by crossramhemi
I've built the exhaust system for my old V8. It has one exhaust system for each bank. It will be turbocharged. Do I need to put the O2 sensor before or after the turbo? Since each side of the engine will have the exhaust seperate from each other, do I need an O2 sensor for each side? Thank you, Bill
Re: O2 sensor on a turbocharged motor
Posted: Sun Feb 19, 2012 4:44 am
by Joe Clark
the sensor needs to go after the turbo, pressure will affect the reading. also there is a mx tem for the sensor so it needs to be a little way from the turbo, some sensors say 15" away but I have seen them much closer on small 4 cyl engines with no issues (like 3-5")
I'm not really up on V8's, but I would say one WB is enough, as the cylinders should all be the same mixture (unless somthing is amiss!)