Re: Dual EGT Thermocouple Placement
[Re: Cuda_Mike]
#2178988
10/20/16 04:18 AM
10/20/16 04:18 AM
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Joined: Dec 2007
Posts: 12,588 Great Neck,LI,new york
hemi-itis
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 12,588
Great Neck,LI,new york
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I put bungs in every pipe so I could have 2,,4,,,,or 8 egts.
But I have none,just o/2s
HEMI-ITIS has no cure. My condition is fully BLOWN!!
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Re: Dual EGT Thermocouple Placement
[Re: Cuda_Mike]
#2179000
10/20/16 07:48 AM
10/20/16 07:48 AM
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Joined: Jan 2011
Posts: 4,785 Utah and Alaska
astjp2
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master
Joined: Jan 2011
Posts: 4,785
Utah and Alaska
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I was thinking the two most rear ones would be the hottest because they are the farthest from any form of cooling. Tim
Last edited by astjp2; 10/20/16 07:49 AM.
1941 Taylorcraft 1968 Charger 1994 Wrangler 1998 Wrangler 2008 Kia Rio 2017 Jetta
I didn't do 4 years and 9 months of Graduate School to be called Mister!
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Re: Dual EGT Thermocouple Placement
[Re: astjp2]
#2179006
10/20/16 08:49 AM
10/20/16 08:49 AM
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Joined: Jun 2008
Posts: 10,847 Oakdale CT
gdonovan
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I Live Here
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Oakdale CT
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I was thinking the two most rear ones would be the hottest because they are the farthest from any form of cooling. Tim Cooling system temps have little impact on EGT. EGT will be all about air/fuel distribution of the intake manifold runners. No cheap/easy way to determine where to place them unless the weakness of a particular intake is well known and documented. You could use a heat gun on suspected cylinder header tube but you would have to be doing pulls on a dyno while trying to take a reading which could be problematic.
"I think its got a hemi"
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Re: Dual EGT Thermocouple Placement
[Re: Cuda_Mike]
#2179054
10/20/16 11:30 AM
10/20/16 11:30 AM
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Joined: Jan 2003
Posts: 8,028 Tulsa OK
Bad340fish
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master
Joined: Jan 2003
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Tulsa OK
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I would love to datalog 8 EGTs but I wasn't in that mind set when I got my headers coated. It would be very handy to balance the cylinders since I have EFI. I guess eventually the shiny headers won't feel so new and I can weld some bungs into them lol.
68 Barracuda Formula S 340
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Re: Dual EGT Thermocouple Placement
[Re: Bad340fish]
#2179074
10/20/16 12:13 PM
10/20/16 12:13 PM
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Joined: Feb 2005
Posts: 20,185 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,185
PA.
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They offer a clamp on style reader many use. I usually go by O2 readings but I finally welded two bungs (4 and 6) to get my feet wet this year
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: Dual EGT Thermocouple Placement
[Re: Cuda_Mike]
#2179494
10/21/16 12:06 AM
10/21/16 12:06 AM
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Joined: Aug 2003
Posts: 43,228 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,228
Bend,OR USA
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I would really try to put one in #7 as I already suggested for those reasons, put the other one in the easiest one on the passenger side If you wanted to pull the headers off the car and have bungs welded into all eight pipes you could move the probes around and see what they all show at part throttle and at WOT Will your system EGT record and play back or transfer the stored information to a viewable device like a laptop? I bought a LM1 years ago and use to record a run and then load it onto my laptop to replay the results on a bigger screen at my pleasure
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Dual EGT Thermocouple Placement
[Re: Monte_Smith]
#2179557
10/21/16 01:24 AM
10/21/16 01:24 AM
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Joined: Jan 2003
Posts: 8,028 Tulsa OK
Bad340fish
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master
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Tulsa OK
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You can't tune a gas motor, ESPECIALLY at idle with EGTs. Plus what would you tune it to? I have stuff that runs at 1200 and stuff that runs at 1600. It's just a number I would want it more for cylinder balance than anything else. With pump gas and street driving plug reading is tough, and 8 EGT readings could let you see a potential fuel delivery problem before anything else. I can adjust injector trim per cylinder but its just kind of a guess without either 8 02s $$$$$$$$ or 8 EGT $$$ lol.
68 Barracuda Formula S 340
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Re: Dual EGT Thermocouple Placement
[Re: Monte_Smith]
#2179600
10/21/16 07:22 AM
10/21/16 07:22 AM
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Joined: Jun 2008
Posts: 10,847 Oakdale CT
gdonovan
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I Live Here
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Oakdale CT
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You can't tune a gas motor, ESPECIALLY at idle with EGTs. Agreed. As someone suggested, you can always weld in 8 bungs and move the sensors about. In theory, in 4 WOT passes you would know which cylinders run lean.
"I think its got a hemi"
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