Four probes, one EGT gauge, and a rotary 4-pos switch
12-02-2003, 03:13 PM
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Four probes, one EGT gauge, and a rotary 4-pos switch
I am thinking of placing an EGT probe on each runner before the collector before the turbine. Would a 4 position switch to one EGT gauge work?
Since EGTs don't need to heat up while in use like O2 sensors (although the O2 could have been heated without reading the AF) would it be as easy just to select which runner you want to read/tune by?
Since EGTs don't need to heat up while in use like O2 sensors (although the O2 could have been heated without reading the AF) would it be as easy just to select which runner you want to read/tune by?
12-02-2003, 03:31 PM
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Re: Four probes, one EGT gauge, and a rotary 4-pos switch (Pelican)
I use a dual-pole switch to toggle between O2 sensors on my B16 (the 1st-gens have twin O2 sensors, one for two cylinders). So I don't see why it wouldn't work. Just connect the lead to the gauge from the 'output' and connect the input from the senders to the 'input' leads.
12-02-2003, 04:41 PM
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Re: Four probes, one EGT gauge, and a rotary 4-pos switch (raene)
It should..... EGT probes are thermal couples (bi-metal) you have to be careful when you select a switch and what material it is made out of. If you use the wrong type you will get incorrect readings.
12-03-2003, 12:01 AM
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Re: Four probes, one EGT gauge, and a rotary 4-pos switch (TrueNorthStar)
Ok I found a switch box you can use ..... but it costs $166...
Goto http://www.mcmaster.com
then put this part # in : 38475K33
It will switch upto 6 probes.
Goto http://www.mcmaster.com
then put this part # in : 38475K33
It will switch upto 6 probes.
12-03-2003, 06:45 AM
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Re: Four probes, one EGT gauge, and a rotary 4-pos switch (TrueNorthStar)
That is still a reasonable price considering a couple Autometer dual EGT gauges would total about $450 vs. a single EGT gauge ($120) and the switcher ($170) = $290.
Ben
Ben
12-03-2003, 09:03 AM
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Re: Four probes, one EGT gauge, and a rotary 4-pos switch (raene)
You are still buying 4 probes total in each of the pricing scenarios that I presented.
FYI- probes are about $35-40 each from teamrip.com or from pegasus racing.
Ben
FYI- probes are about $35-40 each from teamrip.com or from pegasus racing.
Ben
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12-03-2003, 11:11 PM
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Re: Four probes, one EGT gauge, and a rotary 4-pos switch (Pelican)
for all that money just get a wideband, who cares if it has to heat up, can't wait less than 5 minutes to tune?
also no guesswork involved, you go lean you know it.
also no guesswork involved, you go lean you know it.
12-04-2003, 01:09 AM
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Re: Four probes, one EGT gauge, and a rotary 4-pos switch (Foozball26)
but you might be going lean in one cylinder = not good. Alot of racing teams put a egt in each primary to make sure they are getting each cylinder balanced, then they plug the probe bungs when they are ready to hit the track.
12-04-2003, 05:38 AM
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Re: Four probes, one EGT gauge, and a rotary 4-pos switch (TrueNorthStar)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TrueNorthStar »</TD></TR><TR><TD CLASS="quote">Ok I found a switch box you can use ..... but it costs $166...
Goto http://www.mcmaster.com
then put this part # in : 38475K33
It will switch upto 6 probes.</TD></TR></TABLE>
i was about to say something about the impedance skewing the readings, but then i saw this thing.
man. every day, i find a new reason to love McMaster-Carr even more
Goto http://www.mcmaster.com
then put this part # in : 38475K33
It will switch upto 6 probes.</TD></TR></TABLE>
i was about to say something about the impedance skewing the readings, but then i saw this thing.
man. every day, i find a new reason to love McMaster-Carr even more
12-04-2003, 12:20 PM
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Re: Four probes, one EGT gauge, and a rotary 4-pos switch (TrueNorthStar)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TrueNorthStar »</TD></TR><TR><TD CLASS="quote">but you might be going lean in one cylinder = not good. Alot of racing teams put a egt in each primary to make sure they are getting each cylinder balanced, then they plug the probe bungs when they are ready to hit the track.</TD></TR></TABLE>
how are you gonna know when you can only monitor one egt at a time?
make 4 runs switching to a new cyl. each time?
how are you gonna know when you can only monitor one egt at a time?
make 4 runs switching to a new cyl. each time?
12-04-2003, 01:47 PM
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Re: Four probes, one EGT gauge, and a rotary 4-pos switch (Bnjmn)
i vote for a 4-channel data logger since you cant read 4 gauges at a time or switch between 4 sensors during one run. in other words, turn on the data logger, make one run, then review 4 plots
12-04-2003, 02:02 PM
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Re: Four probes, one EGT gauge, and a rotary 4-pos switch (keebler65)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by keebler65 »</TD></TR><TR><TD CLASS="quote">i vote for a 4-channel data logger since you cant read 4 gauges at a time or switch between 4 sensors during one run. in other words, turn on the data logger, make one run, then review 4 plots </TD></TR></TABLE>
Thats exactly how you would do it. I belive motec has inputs for that many probes and can track them.
</TD></TR></TABLE>Thats exactly how you would do it. I belive motec has inputs for that many probes and can track them.
12-10-2003, 08:16 AM
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Re: Four probes, one EGT gauge, and a rotary 4-pos switch (TrueNorthStar)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TrueNorthStar »</TD></TR><TR><TD CLASS="quote">
Thats exactly how you would do it. I belive motec has inputs for that many probes and can track them.
</TD></TR></TABLE>
and so does the EMS.....
Thats exactly how you would do it. I belive motec has inputs for that many probes and can track them.
</TD></TR></TABLE>
and so does the EMS.....
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