... dyno wideband placement question... downpipe vs tailpipe...
Thread Starter
Member
Joined: Aug 2002
Posts: 1,452
Likes: 0
... dyno wideband placement question... downpipe vs tailpipe...
... i was wondering what adjustments should be made if the dyno's wideband is placed at the tailpipe versus the downpipe... when i go to the dyno, i want to calibrate my techedge, so it will be in the downpipe... i hope this makes sense... anyways, lemme know... thanks...
Joined: Dec 2001
Posts: 2,047
Likes: 0
From: Long Island, NY, USA
Re: ... dyno wideband placement question... downpipe vs tailpipe... (1.8T_EG)
yea i was wondering a similar thing lately. if most places are saying to have the wb sensor after the snail and before the cat, how come dynos stick it up the tailpipe? are their wb's different? wouldnt tuning rich off of the tailpipe be equal to tuning extremely rich at the dp?
Member
Joined: Oct 2002
Posts: 1,612
Likes: 0
From: Bloomington, IN
Re: ... dyno wideband placement question... downpipe vs tailpipe... (Pengo)
they stick them in the tailpipe cause its alot easier and most people dont have bungs welded in the exhaust...eitherway they are both accurate, although ide have more faith in the screw in sensor up on the downpipe.
ive seen two dyno sheet plotted on top of eachother, one with the sensor in the tailpipe, and the other up on the downpipe. they both gave about the same a/f reading, but the one with the sensor in the tailpipe read the reading about 500rpm's later then the one in the downpipe...this was on a supra btw
ive seen two dyno sheet plotted on top of eachother, one with the sensor in the tailpipe, and the other up on the downpipe. they both gave about the same a/f reading, but the one with the sensor in the tailpipe read the reading about 500rpm's later then the one in the downpipe...this was on a supra btw
Honda-Tech Member
Joined: Aug 2001
Posts: 1,227
Likes: 1
From: Orlando, Florida, USA
Re: ... dyno wideband placement question... downpipe vs tailpipe... (Pengo)
we have had customers at the shop that have a wideband installed at the downpipe and we put our own wideband into their tail pipe and the #'s were maybe .1 off.
Member
Joined: Oct 2002
Posts: 1,612
Likes: 0
From: Bloomington, IN
Re: ... dyno wideband placement question... downpipe vs tailpipe... (Pengo)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Pengo »</TD></TR><TR><TD CLASS="quote">i can't see how the tailpipe would be the same as downpipe on a car with a real cat</TD></TR></TABLE>
who runs a cat anyways...hike up your skirt and take that chit off
who runs a cat anyways...hike up your skirt and take that chit off
Junior Member
Joined: Feb 2001
Posts: 311
Likes: 0
From: Vancouver, BC, Canada
Re: ... dyno wideband placement question... downpipe vs tailpipe... (BoostedED9)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostedED9 »</TD></TR><TR><TD CLASS="quote">we have had customers at the shop that have a wideband installed at the downpipe and we put our own wideband into their tail pipe and the #'s were maybe .1 off.</TD></TR></TABLE>
Were your customers running cats?
Were your customers running cats?
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
