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Old 08-22-2017, 12:24 PM   #2581
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Just had an EGT placement discussion with a Cummins tech. Lots of people insist on adding them at the rear exhaust port on the manifold. He said nix on that. All the Cummins numbers are based on it being located 4-6" after the turbo on the downpipe. Not sure about other engines, but wanted to pass that along for any Cummins fans.

700 to max 1000 degree range at that point.

If you run a diesel, you need an EGT gauge. And I feel the same about tranny temp. Keeping up with those numbers can save your a$$.
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Old 08-22-2017, 12:46 PM   #2582
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so its as easy as that? I can locate it in the pipe? drill a hole, weld a bung wire it up and done?

I keep hearing all the mixed info on beeding to put it in the manifold pre-turbo. as they say the EGT is hottest there..

ive never seen any Navistar numbers to know.. I just have ecveryone saying "if you are stock you dont need it"..

but im a Gauge-Geek. I like Lots of gauges, displays, numbers, needles..

for me since im into "glass" its that Jet-plane look... if I were into analog it would be that "peterbilt dash" Look...

-Christopher
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Old 08-22-2017, 01:01 PM   #2583
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Quote:
Originally Posted by Tango View Post
Just had an EGT placement discussion with a Cummins tech. Lots of people insist on adding them at the rear exhaust port on the manifold. He said nix on that. All the Cummins numbers are based on it being located 4-6" after the turbo on the downpipe. Not sure about other engines, but wanted to pass that along for any Cummins fans.

700 to max 1000 degree range at that point.

If you run a diesel, you need an EGT gauge. And I feel the same about tranny temp. Keeping up with those numbers can save your a$$.
THAT is good to know. I knew the exhaust is hotter on the pipe end rather than the pre-turbo end. I had a turbo melt down on me in Indiana close to home after a three day run. My truck didn't have a pyro on it at that time. Interesting to see a huge cloud of blue smoke coming out your stack going down I-64 coating everyone behind you....... After that experience a pyro was installed. I knew when I was running hot and to back off the throttle. Saved me a ton of cash. Got better fuel mileage too.....

Great call Tango!

I'll have updates on my thread when I get those gauges in.

M
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Old 08-22-2017, 01:03 PM   #2584
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M10: its hotter in the pipe than pre-turbo?
-Christopher
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Old 08-22-2017, 01:22 PM   #2585
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Negative. The temp is highest measured right at the rear exhaust port...but the numbers Cummins uses are post turbo. For whatever reason they consider that reading most important.

1200+ degrees are common at the port but Cummins wants you to stay in the range indicated above (700-1000 right behind the turbo).
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Old 08-22-2017, 02:12 PM   #2586
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I got it.. so the biggest damage from high EGT's would burn up the turbo before you would start melting pistons.. so take the temp right after turbo as its a good average to stay below.. makes sense..

Now I need to find me a nice cool digital one of those gauges and put it on!
-Christopher
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Old 08-22-2017, 04:05 PM   #2587
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Wow my head is spinning on post or pre, 700 degrees or 1200 degrees, I'm scared to think what it is going to be when I get to the dashboard. I started at the rear door and working my way forward. I guess it will do me well to keep track of all these posts.

WATCH THE POLICE & THE TAX MAN MISS ME, I'm MOBILE !!!

Come on Caddie !!
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Old 08-22-2017, 07:49 PM   #2588
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Quote:
Originally Posted by cadillackid View Post
I got it.. so the biggest damage from high EGT's would burn up the turbo before you would start melting pistons.. so take the temp right after turbo as its a good average to stay below.. makes sense..

Now I need to find me a nice cool digital one of those gauges and put it on!
-Christopher
Exactly Christopher. There's an oil ring on that side with a tendency to let go if it gets too hot. That is the big worry.

M
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Old 08-22-2017, 09:01 PM   #2589
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an oil ring in a cylinder? on which engine? 444E? or the oil seal in the turbo?

so how hot is too hot for a 444E ?
-Christopher
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Old 08-22-2017, 11:25 PM   #2590
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Damn Guido! Thanks... but after that tease...I had to read the entire build thread. Talk about an amazingly talented builder! Make my attempts look cobby & mighty feeble. That guys skill set is truly impressive.
Glad you liked it, hopefully got some creative juices flowing...you never know when inspiration will strike...even in the baking pan aisle.

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wow!!! what a cool filter build!!!

TANGO - your skill set is truly impressive!!! you fabricate things in a day most people would give up on or would take a month or more!!

-Christopher


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Thanks for the kind words, but I am still overwhelmed by the quality & craftsmanship demonstrated on that project.

ONWARD!

Tango, don't sell yourself short, you got quite the little project goin' on yourself.
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