| Go back to previous topic | | Forum name | Turbo/Nitrous Tech | | Topic subject | Mounting EGT probe (location?) | | Topic URL | https://forums.2gnt.com/dcboard.php?az=show_topic&forum=i8&topic_id=29720 |
29720, Mounting EGT probe (location?) Posted by 96venger, Aug-23-02 04:38 AM
Can somone show a pic or tell me exactly where you mounted the EGT probe?
Thanks Mark
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29721, RE: Mounting EGT probe (location?) Posted by RoboTechDSM, Aug-23-02 05:20 AM
The #4 runner, all the way to the driver's side, about 3-4 in. from the head.
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29722, RE: Mounting EGT probe (location?) Posted by optimuspeterson, Aug-23-02 08:17 AM
you can see where mine is mounted. 4th runner, drivers side.

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29723, RE: Mounting EGT probe (location?) Posted by ourformerselves, Aug-23-02 05:19 PM
I was thinking about where to put mine, and I talked to Shaun from NER, and he said it might be better to put it on the upper part of the downpipe like a few do here. I guess that's incase your #4 cylinder has really fuked up compression then it would change the temp of that cylinder's exiting exhaust gasses. Which would you all recommend? #4 or downpipe?
Thanks, Richard (97 ESi) http://www.ourformerselves.com/richard/main.htm
 BEST TRACK TIME -- 16.46 @ 86.03mph ----------------------------------------------------------
CURRENT MODS: NER 1F Turbo Kit w/ Turbonetics T3/T4 S-Trim Ball Bearing Turbo || Autometer Phantom Boost, Oil Pressure, & EGT Guages || Autometer Cluster Benzel || Autometer Full Pillar || HKS Type-1 Turbo Timer || NKG BKR7E Spark Plugs || Magnacor 8.5 Ignition Wires || Front & Rear Strut Bars || Eibach Springs Pro-Kit || KYB AGX Adjustable Shocks/Struts || AF/X Underdrive Pulley || Pacesetter - Monza Exhaust System || OBX Racing Sports - B5 Bomb Tunable Muffler || Energy Suspension - Motor Mount Inserts || Bored Throttle Body || Konig 17x7" Silver Rated R Wheels || Yokohama Avid H4/V4 215/45R17 91H Tires
POINTLESS MODS: Sylvania Cool Blue Headlights || Cobra Eyes Windshield Washer Blue LED Lights || Nokya Motorsports Sport Pedal Set
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29724, RE: Mounting EGT probe (location?) Posted by JasonESi_T, Aug-23-02 05:31 PM
DEfinitely the manifold versus the DP. The readings are much more accurate and quicker to respond. There's no need to make a -200 adjustment as well to correspond with everyone else who put theirs in the manifold.
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29725, RE: Mounting EGT probe (location?) Posted by ourformerselves, Aug-23-02 09:07 PM
One question then. My turbo downpipe is 3", and the probe is 1 1/2" so it would be in the center of the pipe.. but my exhaust manifold is about 2" at the #4 runner, so it will be close to the opposite side of the hold drilled in the #4 runner. Would this affect my readings?
Thanks, Richard (97 ESi) http://www.ourformerselves.com/richard/main.htm
 BEST TRACK TIME -- 16.46 @ 86.03mph ----------------------------------------------------------
CURRENT MODS: NER 1F Turbo Kit w/ Turbonetics T3/T4 S-Trim Ball Bearing Turbo || Autometer Phantom Boost, Oil Pressure, & EGT Guages || Autometer Cluster Benzel || Autometer Full Pillar || HKS Type-1 Turbo Timer || NKG BKR7E Spark Plugs || Magnacor 8.5 Ignition Wires || Front & Rear Strut Bars || Eibach Springs Pro-Kit || KYB AGX Adjustable Shocks/Struts || AF/X Underdrive Pulley || Pacesetter - Monza Exhaust System || OBX Racing Sports - B5 Bomb Tunable Muffler || Energy Suspension - Motor Mount Inserts || Bored Throttle Body || Konig 17x7" Silver Rated R Wheels || Yokohama Avid H4/V4 215/45R17 91H Tires
POINTLESS MODS: Sylvania Cool Blue Headlights || Cobra Eyes Windshield Washer Blue LED Lights || Nokya Motorsports Sport Pedal Set
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29726, RE: Mounting EGT probe (location?) Posted by 96venger, Aug-24-02 11:50 AM
So optimus peterson. DOes everyone go in from the side of the manifold like that, I was thinking most went in from the top... Is there a certain way I should go? Is there any beneifits?
Thanks man
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29727, RE: Mounting EGT probe (location?) Posted by Avenger EST, Aug-24-02 12:17 PM
the best place to mount the egt is right before the turbo. close to the center. If you mount it right after the turbine, the temperature difference will be 150 degrees farenheight except when cruising at a high rpm not under load (i.e. 4000+ rpm)in that case, the temperature difference is 25 degrees. the downpipe location doesn't register temperature changes any slower than measuring in the manifold, as the turbine housing is usu. pretty thick, and the vast majority of heat is shot out of the downpipe instead of radiated out of the side of the turbine housing. the #4 runner is usu. the "coldest" cylinder out of the bunch, and under lean conditions, assuming proper fuel pressure, will be the "last" cylinder to go bad. cylinders 2 and 3 are usu between 50 and 75 degrees higher than cylinders 1 and 4. once again, the best place to put the sensor is directly between cyl 2 and 3 right before the turbo. trust me. I know.
A.D.P. "...If you do too much, people become dependant. If you do to little, people loose hope. If you do it right, people won't be sure you've done anything at all." bring it on............
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29728, RE: Mounting EGT probe (location?) Posted by spike14485, Aug-24-02 12:26 PM
do u have a pic of were u put it???
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29729, RE: Mounting EGT probe (location?) Posted by ourformerselves, Aug-24-02 06:56 PM
Hey AvengerEST, do you mean right here?

Right where the #2 & #3 meet up at the flange? How much of a difference is there in temperature compared to having it right at the #4 runner?
Thanks, Richard (97 ESi) http://www.ourformerselves.com/richard/main.htm
 BEST TRACK TIME -- 16.46 @ 86.03mph ----------------------------------------------------------
CURRENT MODS: NER 1F Turbo Kit w/ Turbonetics T3/T4 S-Trim Ball Bearing Turbo || Autometer Phantom Boost, Oil Pressure, & EGT Guages || Autometer Cluster Benzel || Autometer Full Pillar || HKS Type-1 Turbo Timer || NKG BKR7E Spark Plugs || Magnacor 8.5 Ignition Wires || Front & Rear Strut Bars || Eibach Springs Pro-Kit || KYB AGX Adjustable Shocks/Struts || AF/X Underdrive Pulley || Pacesetter - Monza Exhaust System || OBX Racing Sports - B5 Bomb Tunable Muffler || Energy Suspension - Motor Mount Inserts || Bored Throttle Body || Konig 17x7" Silver Rated R Wheels || Yokohama Avid H4/V4 215/45R17 91H Tires
POINTLESS MODS: Sylvania Cool Blue Headlights || Cobra Eyes Windshield Washer Blue LED Lights || Nokya Motorsports Sport Pedal Set
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29730, RE: Mounting EGT probe (location?) Posted by 420aVenger, Aug-25-02 12:22 AM
>>>How much of a difference is there in temperature compared to having it right at the #4 runner?<<<
>>cylinders 2 and 3 are usu between 50 and 75 degrees higher than cylinders 1 and 4<<
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29731, RE: Mounting EGT probe (location?) Posted by ourformerselves, Aug-25-02 01:24 AM
Yea, I know he said that.. I was talking about the difference between #4 right next to the block, compared to between #2&3 near the manifold->turbo area.
Thanks, Richard (97 ESi) http://www.ourformerselves.com/richard/main.htm
 BEST TRACK TIME -- 16.46 @ 86.03mph ----------------------------------------------------------
CURRENT MODS: NER 1F Turbo Kit w/ Turbonetics T3/T4 S-Trim Ball Bearing Turbo || Autometer Phantom Boost, Oil Pressure, & EGT Guages || Autometer Cluster Benzel || Autometer Full Pillar || HKS Type-1 Turbo Timer || NKG BKR7E Spark Plugs || Magnacor 8.5 Ignition Wires || Front & Rear Strut Bars || Eibach Springs Pro-Kit || KYB AGX Adjustable Shocks/Struts || AF/X Underdrive Pulley || Pacesetter - Monza Exhaust System || OBX Racing Sports - B5 Bomb Tunable Muffler || Energy Suspension - Motor Mount Inserts || Bored Throttle Body || Konig 17x7" Silver Rated R Wheels || Yokohama Avid H4/V4 215/45R17 91H Tires
POINTLESS MODS: Sylvania Cool Blue Headlights || Cobra Eyes Windshield Washer Blue LED Lights || Nokya Motorsports Sport Pedal Set
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29732, RE: Mounting EGT probe (location?) Posted by Avenger EST, Aug-25-02 11:53 AM
assuming that manifold is ceramic coated, the temperature difference shoudl be about 50 or so degrees......."higher" than measuring from the #4 runner. the purpose of coating a manifold is to hold the head in to increase the flow and heat effenciency to the turbocharger. if the temperature at the inlet of the turbocharger is drasticly lower than the average temperature of the head ports, then the manifold is not really good quality at all. I have 5 egt probes one 2" from each port and one 1 inch from the turbo outlet in the downpipe. since I have the HRC log style manifold, the readings from cyl 2 and 3 are very close to what would be read in the exacty center of the manifold (maybe higher my 25 degrees maximum).
A.D.P. "...If you do too much, people become dependant. If you do to little, people loose hope. If you do it right, people won't be sure you've done anything at all." bring it on............
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