K20a2 Race Exhausts - Do I use an O2 sensor?
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K20a2 Race Exhausts - Do I use an O2 sensor?
I'm looking at race exhausts and such and Im not seeing bungs for the O2 sensor. Where am I getting my readings from for K-Pro and such? Do I just buy an AEM wideband and have a bung installed? If so, where on the pipe?
Anyone with some knowledge on this would be great!
Edit: Image Example from Six Sigma (DTR)
Steve
Modified by k-series at 8:14 AM 8/4/2005
Anyone with some knowledge on this would be great!
Edit: Image Example from Six Sigma (DTR)
Steve
Modified by k-series at 8:14 AM 8/4/2005
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Re: (k-series)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by k-series »</TD></TR><TR><TD CLASS="quote">So you leave it plumbed but only use the connection for the dyno?
Steve</TD></TR></TABLE>
yeah most likely just for wideband tuning.
Steve</TD></TR></TABLE>
yeah most likely just for wideband tuning.
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Re: (sscguy)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sscguy »</TD></TR><TR><TD CLASS="quote">Boy, that'd be nice, a second bung for a wideband. Save a bit of time removing the normally-used one.</TD></TR></TABLE>
im adding a 2nd bung once i get my 2nd header just to make it easier
im adding a 2nd bung once i get my 2nd header just to make it easier
#11
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Re: (hybrid racing)
i think (keyword there) there is no hole for the O2 is because when u have a true "race" car, all your fuel maps and ignition maps are tuned and your ECU runs open loop, so i shouldnt need the o2 sensor anyway.
I believe there is a probe you can stick into the pipe (like an emissions sniffer) that acts like a wideband for tuning, so that is why there is no need for a conventional wideband. But then again, i could be full of sh*t.
I believe there is a probe you can stick into the pipe (like an emissions sniffer) that acts like a wideband for tuning, so that is why there is no need for a conventional wideband. But then again, i could be full of sh*t.
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Re: (greenblurr93)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by greenblurr93 »</TD></TR><TR><TD CLASS="quote">i think (keyword there) there is no hole for the O2 is because when u have a true "race" car, all your fuel maps and ignition maps are tuned and your ECU runs open loop, so i shouldnt need the o2 sensor anyway.
I believe there is a probe you can stick into the pipe (like an emissions sniffer) that acts like a wideband for tuning, so that is why there is no need for a conventional wideband. But then again, i could be full of sh*t.</TD></TR></TABLE>
See, that's what I thought too. That's why I asked.
Steve
I believe there is a probe you can stick into the pipe (like an emissions sniffer) that acts like a wideband for tuning, so that is why there is no need for a conventional wideband. But then again, i could be full of sh*t.</TD></TR></TABLE>
See, that's what I thought too. That's why I asked.
Steve
#13
Correct, in an environment when the car is only a "race" car there would be no need for any bungs. Most of the cars we deal with are street cars and require the stock sensor I like to have the second sensor in the header to get an accurate reading.
Steve, if you plan on running just the open header and no O2 on the street then keep it as it is.
Steve, if you plan on running just the open header and no O2 on the street then keep it as it is.
#19
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Re: (greenblurr93)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by greenblurr93 »</TD></TR><TR><TD CLASS="quote">i think (keyword there) there is no hole for the O2 is because when u have a true "race" car, all your fuel maps and ignition maps are tuned and your ECU runs open loop, so i shouldnt need the o2 sensor anyway.
I believe there is a probe you can stick into the pipe (like an emissions sniffer) that acts like a wideband for tuning, so that is why there is no need for a conventional wideband. But then again, i could be full of sh*t.</TD></TR></TABLE>
Well, there is no perfect tune for all different conditions a race car will see traveling to different places (tracks). Another thing is that wideband and EGT(s) will give you a look inside of what the motor is doing in a run. If something is not right with the motor/run, the data you collected may help you find the issue faster and prevent damage.
You do not need them, but it helps.
I believe there is a probe you can stick into the pipe (like an emissions sniffer) that acts like a wideband for tuning, so that is why there is no need for a conventional wideband. But then again, i could be full of sh*t.</TD></TR></TABLE>
Well, there is no perfect tune for all different conditions a race car will see traveling to different places (tracks). Another thing is that wideband and EGT(s) will give you a look inside of what the motor is doing in a run. If something is not right with the motor/run, the data you collected may help you find the issue faster and prevent damage.
You do not need them, but it helps.
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