Are you saying that so that the sensor doesnt overheat?
I totally understand where your coming from. However, Bosch suggests that you run the o2 sensor in the hottest place it can take. The sensor im using can handle bursts of 1030 C.
While I have heard in the past that 6-18" is what is suggested, alot of the OEM's are moving the wideband closer and closer to the turbine housings. On alot of the downpipes I work with at work, we have had no issues running them less than 6" from the housing.
On the other hand, the farther you have it out, the longer it takes to warm up and the longer the delay is between the exhaust leaving the cylinder and hitting the o2 sensor. This is usually negligible while in boost, but the less mass airflow you have the longer it takes to hit the o2 sensor (generally). Some of the new ecu's I work with compensate for this but my ecu doesn't.
I wish I was a badass mofo who would put backpressure and EGT sensors in each runner and in the collector and wastegate tube.
I totally understand where your coming from. However, Bosch suggests that you run the o2 sensor in the hottest place it can take. The sensor im using can handle bursts of 1030 C.
While I have heard in the past that 6-18" is what is suggested, alot of the OEM's are moving the wideband closer and closer to the turbine housings. On alot of the downpipes I work with at work, we have had no issues running them less than 6" from the housing.
On the other hand, the farther you have it out, the longer it takes to warm up and the longer the delay is between the exhaust leaving the cylinder and hitting the o2 sensor. This is usually negligible while in boost, but the less mass airflow you have the longer it takes to hit the o2 sensor (generally). Some of the new ecu's I work with compensate for this but my ecu doesn't.
I wish I was a badass mofo who would put backpressure and EGT sensors in each runner and in the collector and wastegate tube.
Comment