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Engine Keeping O2 sensors lit with long tube headers

  • Thread starter Thread starter keel
  • Start date Start date Yesterday at 8:44 AM

keel

Active Member
Aug 23, 2020
232
80
38
Seattle, Wa
Yesterday at 8:44 AM
#1
  • Yesterday at 8:44 AM
  • #1
For context, I have BBK ceramic coated long tubes (rusty after only a couple years by the way) and no cats. I noticed that my car tends to idle and take off from stops smoother after I've been beating on it, especially in cold weather. I have a theory that it is because I get more heat in the exhaust and the O2 sensors are struggling to stay lit under normal driving conditions.

I'm wondering if anyone has heat wrapped their long tube headers and gotten their car to run better by doing it, or if what I'm experiencing has nothing to do with the O2 sensors. Or even just wrapped the collector near the area where the O2 sensor screws in, so that way the headers don't need to be pulled off the car.
 

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
5,899
4,022
183
54
Claremore, OK
Yesterday at 10:13 AM
#2
  • Yesterday at 10:13 AM
  • #2
O2’s self heat. I would ceramic coat those headers before I did anything else. I’ve seen a few sets on street cars rust out underneath header wrap.
 

keel

Active Member
Aug 23, 2020
232
80
38
Seattle, Wa
Yesterday at 12:37 PM
#3
  • Yesterday at 12:37 PM
  • #3
AeroCoupe said:
O2’s self heat.
Click to expand...
Did not know that.

Are you saying that it's best to ceramic coat before wrapping or ceramic coat instead of wrapping?
 

AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
5,899
4,022
183
54
Claremore, OK
Yesterday at 7:06 PM
#4
  • Yesterday at 7:06 PM
  • #4
In lieu of the wrap.
 
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