[DeTomaso] Techno Question: Bung placement on headers for A/F sensor

[Charles Engles]

Dear Dave,


          So to rephrase what you said (which is very interesting), the
further down the exhaust the better the sensor reads and reads at lower
rpms.   Therefore, the best point is as far back as possible, i.e. just
before the muffler?

         I have read that the Innovate is supposed to be the fastest
sampling or testing unit.  Does that have any bearing on your recommendation
for a bung further down the exhaust pipe to obtain better readings?


                          Warmest regards,  Chuck Engles



-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at poca.com] On Behalf Of doug351c
Sent: Sunday, August 17, 2014 3:17 PM
To: Dave Londry; detomaso at poca.com
Subject: Re: [DeTomaso] Techno Question: Bung placement on headers for A/F
sensor

Dave,

By "outlet" do you mean header collector flange?

Doug Braun
blue 73L #5505

-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at poca.com]On Behalf Of Dave Londry
Sent: Sunday, August 17, 2014 1:05 PM
To: detomaso at poca.com
Subject: Re: [DeTomaso] Techno Question: Bung placement on headers for A/F
sensor


That is good stuff Chuck and giving all that info first priority,
  the farther you are from the outlet - the lower the rpm at which you'll
get stable A/F readings.
The reversions in our short exhaust systems are really fierce.
Below about 1700 rpm I get nothing but crap.
dave


On 17/08/2014 12:03 PM, Charles Engles wrote:
>     Dear SOBill, Jerry, Asa and Mike
>
>
>
>                         Great minds think alike and experience makes the
>     optimal location so much easier to pinpoint.   Thanks!
>
>
>
>                                         Warmest regards,  Chuck Engles
>
>
>     From: SOBill at aol.com [mailto:SOBill at aol.com]
>     Sent: Sunday, August 17, 2014 12:02 PM
>     To: cengles at cox.net; detomaso at poca.com
>     Subject: Re: [DeTomaso] Techno Question: Bung placement on headers for
>     A/F sensor
>
>
>     Chuck,
>
>
>     The bung should be mounted at the 12 o'clock position so condensation
>     does get to the sensor on startup.
>
>
>     I welded mine on the exhaust pipe just after the collector because my
>     engine was in the car and I could easily remove the exhaust pipe to do
>     the welding.
>
>
>     SOBill
>
>
>     The main thing is to keep the main thing the main thing.
>     Do the best you can with what your have where you are.
>     Have fun today!
>     SOBill
>
>
>     In a message dated 8/17/2014 8:57:41 A.M. Pacific Daylight Time,
>     [1]cengles at cox.net writes:
>
>       Dear Forum,
>                           I will soon have both engines out of both
>       Panteras for
>       work.  It dawned on me that this would be a good time to add a bung
>       on the
>       headers for use with and A/F meter sensor.    I have an email sent
>       to
>       Innovate for their recommendations, but it is the weekend.    I
>       assume that
>       the bung should be welded into the end of the header collector.
>                           Does anyone have knowledge of the optimal spot
>       to put
>       the bung?
>                                                    Warmest regards, Chuck
>       Engles
>          Dear Forum,
>                              I will soon have both engines out of both
>       Panteras
>          for work.  It dawned on me that this would be a good time to add
>       a bung
>          on the headers for use with and A/F meter sensor.    I have an
>       email
>          sent to Innovate for their recommendations, but it is the
>       weekend.    I
>          assume that the bung should be welded into the end of the header
>          collector.
>                              Does anyone have knowledge of the optimal
>       spot to
>          put the bung?
>                                                       Warmest regards,
>       Chuck
>          Engles
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> References
>
>     1. mailto:cengles at cox.net
>     2. mailto:DeTomaso at poca.com
>     3. http://poca.com/mailman/listinfo/detomaso_poca.com
>
>
>
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