pyrometer probe??
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Junior User
Joined: Jul 2007
Posts: 84
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From: northwest missouri
pyrometer probe??
ok i bought my truck with the guage pods already installed by a creditable comapny near me and i have read some things on the internet that i think tell me my probe is in the wrong spot...so were is the pyrometer probe supposed to be placed? mine is on the down pipe for my turbo. and if it is in the wrong place were should i put it?....thanks for any and all info!
Posting Guru
Joined: Sep 2005
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From: Monroe Michigan
ok i bought my truck with the guage pods already installed by a creditable comapny near me and i have read some things on the internet that i think tell me my probe is in the wrong spot...so were is the pyrometer probe supposed to be placed? mine is on the down pipe for my turbo. and if it is in the wrong place were should i put it?....thanks for any and all info!
Post Fiend
Joined: Feb 2008
Posts: 10,977
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From: Lancaster, Pa.
Not a recommended spot for accurate readings, up-pipe or exhaust manifold pipe is where you want to put it, pre turbo is recommended. You want to know how hight the EGT's are before they get to the turbo. Don't know how creditable they are but thats not in the desired spot. I got mine tapped into the drivers side header manifold, pre-turbo. Mark's got you hooked up above..
Laughing Gas
Joined: Sep 2007
Posts: 1,051
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From: Caro, MI
ok i bought my truck with the guage pods already installed by a creditable comapny near me and i have read some things on the internet that i think tell me my probe is in the wrong spot...so were is the pyrometer probe supposed to be placed? mine is on the down pipe for my turbo. and if it is in the wrong place were should i put it?....thanks for any and all info!
Temporarily Deactivated
Joined: Oct 2008
Posts: 613
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From: Ky
it makes sense to put it pre turbo for a more accurate reading.but in the same sense it would be smarter to put it post turbo,because if the prob were to ever brake in the manifold it would go through the turbo and shred it up..Most of the big rigs i have seen have the probe post turbo.but this is just a thought of mine,and i was also wondering were the best spot is to put the probe.
Post Fiend
Joined: Feb 2008
Posts: 10,977
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From: Lancaster, Pa.
The probe is about the width of a pen refill or smaller and the chances of that tip breaking off in there are extremely rare. All the probe hardware is basicly tapped into the manifold, just the tip is in there...
Fleet Owner
Joined: Jun 2004
Posts: 25,090
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From: Rio Rico, AZ.
An Isspro pyrometer that is intended for use with a post turbo thermocouple.
A pyrometer that is intended for use with a pre turbo thermocouple.
As you can see, it depends on where the probe is mounted.
Either one will work fine.
I have the pre turbo setup, FWIW.
A pyrometer that is intended for use with a pre turbo thermocouple.
As you can see, it depends on where the probe is mounted.
Either one will work fine.
I have the pre turbo setup, FWIW.
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Post Fiend
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Junior User
Joined: Jul 2007
Posts: 84
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From: northwest missouri
awesome info!...thanks maevans for the info and instructions....when my new exhaust come in ill be moveing the probe to the driver exhaust manifold...once again thanks everyone for the info...i'll be getting my stuff switched over were it needs to be soon....so much for the "creditable" shop that did the work. i know now to have it done and done right ill check here then tackle it myself...thanks again!
Hotshot
Joined: Jul 2003
Posts: 12,177
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From: Newport, WA
it makes sense to put it pre turbo for a more accurate reading.but in the same sense it would be smarter to put it post turbo,because if the prob were to ever brake in the manifold it would go through the turbo and shred it up..Most of the big rigs i have seen have the probe post turbo.but this is just a thought of mine,and i was also wondering were the best spot is to put the probe.
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Junior User
Joined: Jul 2007
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From: northwest missouri
excellent info...i had a thought last night i have the autometer cobalt EGT guage for my pyro...kwikkordead..u posted pics of "pre" and "post" turbo guages, and mine doesnt have the nice green yellow red areas so does anyone know if the autometer cobalt is intended for pre or post? as well what is an ideal temp for both pre and post? thanks again for the info!
Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
excellent info...i had a thought last night i have the autometer cobalt EGT guage for my pyro...kwikkordead..u posted pics of "pre" and "post" turbo guages, and mine doesnt have the nice green yellow red areas so does anyone know if the autometer cobalt is intended for pre or post? as well what is an ideal temp for both pre and post? thanks again for the info!
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Junior User
Joined: Jul 2007
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From: northwest missouri
so per the pics post..not above 1050* and pre not above 1250*...sounds good to me....ok next question is is there a difference between a pre and a post thermocouple? since i didnt put mine in i dont know if it came with 2 types. mine is smaller not like the one chunderdownunder posted a pic of.
Hotshot
Joined: Jul 2003
Posts: 12,177
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From: Newport, WA
so per the pics post..not above 1050* and pre not above 1250*...sounds good to me....ok next question is is there a difference between a pre and a post thermocouple? since i didnt put mine in i dont know if it came with 2 types. mine is smaller not like the one chunderdownunder posted a pic of.