2 EGT probes?
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Posting Guru
Joined: Apr 2010
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From: Canberra Australia
2 EGT probes?
Anyone running 2 EGT probes in their truck?
If so, please post the locations that you've chosen.
The reason I ask is that I have fitted one into the end of the exhaust manifold to run a gauge, and am thinking of fitting a second probe post turbo for an Edge CS scan-gauge.
Is it worth the trouble/$130 for the 2nd probe?
Any thoughts welcome.
If so, please post the locations that you've chosen.
The reason I ask is that I have fitted one into the end of the exhaust manifold to run a gauge, and am thinking of fitting a second probe post turbo for an Edge CS scan-gauge.
Is it worth the trouble/$130 for the 2nd probe?
Any thoughts welcome.
Hotshot
Joined: Jan 2011
Posts: 18,849
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From: Puget Sound
While going post-turbo would answer the question of "how much does it cool down", that information serves no purpose.
Now... get a malfunctioning injector, a bad UVCH, or a clogged fuel nozzle on one side - having a pyro on each manifold will tell you instantly there is a problem and where it is.
Now... get a malfunctioning injector, a bad UVCH, or a clogged fuel nozzle on one side - having a pyro on each manifold will tell you instantly there is a problem and where it is.
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Posting Guru
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From: Canberra Australia
Would you then be expecting them to always read the same?
Second location I am thinking of is the EBPV blank of my EBPV deleted turbo outlet so as to measure the EGT pre and post turbo.
Second location I am thinking of is the EBPV blank of my EBPV deleted turbo outlet so as to measure the EGT pre and post turbo.
Logistics Pro
Joined: Dec 2010
Posts: 4,738
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From: Temperance, MI
Running dual gauges (one in each manifold) has helped me in a few times. I highly recommend it to anyone
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Posting Guru
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From: Canberra Australia
So, drilling the RHS exhaust manifold for a EGT probe.
Does it matter where abouts the EGT probe hole is located?
The reason I ask is that I've had a roll around under my truck & reckon I can just fit my power drill between the frame and starter motor, so the tapped hole I can make on the RHS will be a little further away from the manifold end than where I was able to tap in the hole on the LH exhaust manifold.
Does it matter where abouts the EGT probe hole is located?
The reason I ask is that I've had a roll around under my truck & reckon I can just fit my power drill between the frame and starter motor, so the tapped hole I can make on the RHS will be a little further away from the manifold end than where I was able to tap in the hole on the LH exhaust manifold.
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Hotshot
Joined: Jan 2002
Posts: 17,988
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From: La La Land
I would think that if it is placed where the gasses from all four cylinders have to pass by, that would be the only real criterion for determination (other than your mentioned accessibility).
Pop
Pop
It's a Van Gogh
Joined: Feb 2010
Posts: 7,812
Likes: 1,335
From: Elk Grove, CA
So, drilling the RHS exhaust manifold for a EGT probe.
Does it matter where abouts the EGT probe hole is located?
The reason I ask is that I've had a roll around under my truck & reckon I can just fit my power drill between the frame and starter motor, so the tapped hole I can make on the RHS will be a little further away from the manifold end than where I was able to tap in the hole on the LH exhaust manifold.
Does it matter where abouts the EGT probe hole is located?
The reason I ask is that I've had a roll around under my truck & reckon I can just fit my power drill between the frame and starter motor, so the tapped hole I can make on the RHS will be a little further away from the manifold end than where I was able to tap in the hole on the LH exhaust manifold.
Other than the Edge monitor what do folks use for gauges? Two separate gauges seems awkward. Found a Falcon ER-002 which looks similar to a $$ Westach unit, but are there other options?
Edit: D'oh! Pops sprang too quick for me!
Logistics Pro
Joined: Dec 2010
Posts: 4,738
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From: Temperance, MI
I've seen upwards of a 200 degree difference between pyros. Most of the time they are within 50 degrees of each other. I have a cheapo pillar mounted down low with a pyro in each side then the boost in the center and it works well
Fleet Mechanic
Joined: Jul 2003
Posts: 1,614
Likes: 22
From: Springfield, PA
I know this is an older thread, but as it's the same question, I was wondering what people thought about using the two bosses located on the exhaust collector behind the turbo, instead of down on the manifolds. I have it out for other work, and while she's out it's really easy to drill holes on the drill press.
Fleet Mechanic
Joined: Jul 2003
Posts: 1,614
Likes: 22
From: Springfield, PA
But my exhaust manifolds aren't hanging by a wire waiting for paint to dry. I'm running all stock components with respect to power, any upgrades I've done are for reliability. I don't expect to push the engine beyond any normal loads, it's pleasure use only, so the probes would be informative in nature and not to try and get close to any power limitations. Not even running a tuner here.
Mostly I'm wondering if people have had any issues with this location, like the baby's butt cracking, or whether probes here are to close together, so the readings are not distinct.
Mostly I'm wondering if people have had any issues with this location, like the baby's butt cracking, or whether probes here are to close together, so the readings are not distinct.
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
With respect and a friendly tone: The manifold outlets are only slightly less convenient to install a probe on - it's not like you have a clearance problem on a stock-height truck. If you go online for technical support in the future, one of the questions will likely be "What are your EGTs?" You'll tell them your probes are not on the manifold and the forum will shrug - because we won't have a frame of reference. I would (and have) put them where they are the most accurate and everybody has a frame of reference for your support.