Howdy! Did some logging last night.....with Stage 3- setup
02-15-2005, 07:34 AM
#42
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This was the boost... don't think I logged O2Vs.
Lighter blue is my boost curve. Darker is a different car running an X-chip on K03s.
<img src="http://pictureposter.audiworld.com/6924/scott_dap_boost.jpg">
However, as to how O2 voltages relate to VAG-COM, I recently logged O2V through ECUx and graphed them along with AFR from my wideband. I'll see if I can dig up those graphs.
-Dave Pramanik
<img src="http://pictureposter.audiworld.com/6924/scott_dap_boost.jpg">
However, as to how O2 voltages relate to VAG-COM, I recently logged O2V through ECUx and graphed them along with AFR from my wideband. I'll see if I can dig up those graphs.
-Dave Pramanik
02-15-2005, 07:39 AM
#44
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It was in the dead of winter with temps in the 5° to 15°F range so the air was pretty dense.
And that boost was recorded on the dyno. My boost gauge showed a bit higher on the street. Not sure if it was a difference in calibration or the car running slightly differently on the dyno vs. on the street.
-Dave Pramanik
-Dave Pramanik
02-15-2005, 07:47 AM
#45
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Here are the recent O2V vs. wideband AFR (lambda) graphs
Four 3rd gear runs... it does show that targeting ~0.85v on the narrowband sensors will probably have you sufficiently rich (in my case, it worked out to an AFR around 12:1). However, I'm still not sure how much faith I'd put in the narrowband sensor readings.
<img src="http://www.pramanik.net/galleries/misc_post/LVO1.GIF">
<img src="http://www.pramanik.net/galleries/misc_post/LVO2.GIF">
<img src="http://www.pramanik.net/galleries/misc_post/LVO3.GIF">
<img src="http://www.pramanik.net/galleries/misc_post/LVO4.GIF">
<img src="http://www.pramanik.net/galleries/misc_post/LVO1.GIF">
<img src="http://www.pramanik.net/galleries/misc_post/LVO2.GIF">
<img src="http://www.pramanik.net/galleries/misc_post/LVO3.GIF">
<img src="http://www.pramanik.net/galleries/misc_post/LVO4.GIF">
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