John,
You need to mount the sensors as close to the manifold as possible. This is
why: in order for the sensors to come online, they need to heat up. The
sooner they come online the quicker an FI PCM goes into closed loop. Are
you running FI on your engine or are you hooking the o2 sensors to one of
those meters that show the air/fuel ratio? Either way, the sensors need to
heat up quickly before they can start giving proper readings.
Don't dismiss my answer. The engine in my TR6 is indeed FI, with handmade
headers. The O2 sensors are mounted on the very top of the collector.
Click on the following link: http://www.bowtie6.com/repairs/cam54.jpg and
that shows a pic of the engine in my TR6. You can see on the extreme bottom
the header on the passenger side. You can see the O2 sensor sticking up
from the top of the collector.
In your case, I realize the bung cannot be welded on the top of the exhaust
manifold like I did on mine. However, the O2 sensor can be placed on the
pipe that attaches to the end of the manifold.
Joe
'72 TR6 - CC77169
http://www.bowtie6.com/
-----Original Message-----
From: 6pack-bounces+grant=bowtie6.com@autox.team.net
[mailto:6pack-bounces+grant=bowtie6.com@autox.team.net] On Behalf Of John
North
Sent: Thursday, March 27, 2008 09:04
To: Triumph 6 Pack
Subject: [6pack] 02 sensor locations
Where is the best place to locate sensors... Nelson Reidell suggests
in the middle of the down pipes. I have the 76 double pipe system,
so I guess I need two sensors and a switch to get readings off both
carbs. Any suggestions or advice?
John North
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