mr.hicksta Posted March 4, 2012 Share Posted March 4, 2012 The distance doesn't affect accuracy per se, a lot of dyno shops will use a sniffer in the tailpipe. There is however more delay between a combustion event and it being measured by the sensor the further away it is from the exhaust ports. For this reason I wouldn't mount so far back if for example I was using it for closed-loop fueling. For logging at typical K-line speeds I wouldn't worry about it too much. Thanks fahr_side! On the Zeitronix instructions it says, "Recommended installation requires welding the O2 sensor bung in the down pipe at least 16" away from the turbo." I find it odd that the only options are either up top or the rear bung when ideally it should be right before the bend. I'll see what Shamar has to say when I send him the data, but I'm thinking thing things will be fine using the rear port. Link to comment Share on other sites More sharing options...
jayway Posted March 4, 2012 Share Posted March 4, 2012 I've got a shot. What dp are you running. I've got the invidia and because it has a divorced bellmouth, the wbo2 is not centered. Take a look. Been running the original sensor probably close to 2 years and still no problems with erratic readings. http://i108.photobucket.com/albums/n29/joeleodee/IMAG0266.jpg Sensor has to be off centered to clear the divorced bellmouth. I Run the same DP and the sensor in the same location. It's only been a few months but no problems so far. I'm glad to see someone else has theirs this way, I thought it was a funny spot. Link to comment Share on other sites More sharing options...
coldsubycz Posted March 5, 2012 Share Posted March 5, 2012 Zeitronix wideband and Front OEM O2 Perrin two cat DP Link to comment Share on other sites More sharing options...
NSFW Posted March 8, 2012 Share Posted March 8, 2012 http://i193.photobucket.com/albums/z151/Legacy_NSFW/Exhaust/StereoWidebandBellmouth.jpg Been running this way for three years and about 25k miles with no issues. Link to comment Share on other sites More sharing options...
citka Posted March 8, 2012 Share Posted March 8, 2012 ^^ Must be becuase of your install crew. Link to comment Share on other sites More sharing options...
NSFW Posted March 9, 2012 Share Posted March 9, 2012 ^^ Must be because of your install crew. Must be. Don't anybody try this at home. This is a job for BEAR Motorsports. Link to comment Share on other sites More sharing options...
.blackgt. Posted September 24, 2012 Share Posted September 24, 2012 Any problems for those who use the front O2 sensor bung? Link to comment Share on other sites More sharing options...
NSFW Posted September 24, 2012 Share Posted September 24, 2012 Still no problems here. 3.5 years, ~30k miles. Link to comment Share on other sites More sharing options...
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