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car is uk based and generally very clean no corrosion elsewhere except for what you can see.
I assume there is so much rust as the box sits very close to the tin ware and this has caused the corrosion.
Have asked Porsche for the tin ware and availability.
997 tt/rs has his sensor, located, quite close to the turbo and been fine, are you suggesting i put the sensor in the box itself, that would be tricky as the box inside supposedly has a special design and i could end up drilling into an area of the box where the exhaust gases do not pass
OK, UK makes sense with the moisture, and I think road salt.
I am convinced that these "tin" pieces were not galvanized steel and susceptible to corrosion. And of course, heat in the area is a corrosion accelerant. I am attaching a picture of mine for your viewing pleasure, super low mileage car from 2 dry states. It is still corroded.! The P/N appears to be 964-106-214-20; at least for a 3.6. I know that they are available in Germany as a friend of mine purchased some of these bits new in Germany.
Since you had so much joy in removing the bumper, bite the bullet clean all this stuff up properly. If you are going to paint it, only go with high temp paint / powder coat. Look at the rest of tin as well.
Regarding EGT; I do not know anything about AEM or the sensor. What I am saying is that for 30 years, I have had EGT installed on an exhaust manifolds and on Turbo out temperatures typically hover around 1200F or higher in severe situations and NO PROBLEM. Not knowing the AEM sensor, I would like to think that it can be closer to the Turbo out; but if it cannot, then contact the exhaust vendor as they know the internal construct, and they can drill and tap a bong for you at the correct spot. They should know exactly how exhaust flows inside their muffler. This way you are not drilling in a random place.
Locating the sensor is becoming an issue, AEM say to put it where the exhaust gases flow, the exhaust fabricator says to put it on the end of the silencer where the plate has been welded in, dilemma here is the sensor will have exhaust gases hitting the face but will not be flowing past the sensor, more around the sensor, if that makes sense
The tin ware above from porsche is approx £900 would be good if we could fabricate it in stainless steel
Can you mount the bung where the air injection bolts up to the Stock cat or a B&B or Fabspeed muffler?
See FBS. Muffler with AI port. I would replace that muffler. It's not correct for these cars. Access is limited to the turbo nuts.
yes access is definitely limited and doesn't help with the bolts all being rusty from the heat
Why do you feel the exhaust is not correct, its been on for over 15 years
Interesting exhaust system. Sounds like it's well made - problem is it doesn't really provide room for the bung for a wideband sensor in a good location. Yes you could put it immediately after the turbo. 997 said he's had no issues but has only driven 2000km. That's nothing. I'd want to know if others have driven a lot more miles with the sensor that close. Maybe it'll last - maybe it won't? This doesn't help you because I have a different exhaust but have 30,000+ miles /6 yrs+ on mine with no issues - sensor located about 18 inches away on the cat bypass pipe.
I contacted aem, they said in theroy the sensor is far away from the clock/headers so it is not really after the turbo, you need to take in consideration the length of the headers.
I also purchased a heat sink bung from AEM and will put in a copper plate, not more I can do, AEM say it will be fine
Can you mount the bung where the air injection bolts up to the Stock cat or a B&B or Fabspeed muffler?
This was my thinking too -- of course, the air injection port is the wrong thread for a sensor and there's no adapter, but it seems like a reasonable place for an AFR/EGT sensor.
06-17-2023, 03:07 PM
