12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

What IS a safe EGT

Old Dec 4, 2009 | 12:32 AM
  #11  
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I'm used to the Rx7 listen in my sig, and the lifeline of that engine is the air/fuel ratio, under power, if it's EVER leaner than 11:1, you risk immediate engine damage (90% HP loss), especially if it's hot out, so I keep a pretty close eye on gauges when bookin it
 
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Old Dec 4, 2009 | 01:08 AM
  #12  
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Originally Posted by Rx7man
I'm used to the Rx7 listen in my sig, and the lifeline of that engine is the air/fuel ratio, under power, if it's EVER leaner than 11:1, you risk immediate engine damage (90% HP loss), especially if it's hot out, so I keep a pretty close eye on gauges when bookin it
Well see thats the bueaty of a diesel engine.
 
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Old Dec 4, 2009 | 10:15 AM
  #13  
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Can run up to 1400 for a short period, but that's it.
Good thing he has never seen the data logger on a puller's truck if thats what he believes.It might make his stomach all upset.
 
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Old Dec 4, 2009 | 11:27 AM
  #14  
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Originally Posted by 12valvetater
Well see thats the bueaty of a diesel engine.
that is very true, as well as ginormous torque numbers, and better fuel milage... but I kinda do miss an 8000 rpm redline
 
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Old Dec 4, 2009 | 01:24 PM
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Originally Posted by Hammer
Good thing he has never seen the data logger on a puller's truck if thats what he believes.It might make his stomach all upset.
x2 I have my 1500 pound gauge burried before the 75ft mark
 
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Old Dec 4, 2009 | 02:10 PM
  #16  
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Originally Posted by 94 12valve
x2 I have my 1500 pound gauge burried before the 75ft mark
I thought your probe was broke off man?
Eh I still say if you can't see it in ain't happing!
 
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Old Dec 4, 2009 | 02:13 PM
  #17  
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it did break ... sometime on my 2nd pull. no real reason to fix it so I took it out.

---AutoMerged DoublePost---

I did make the mistake of watching it on my first pull tho
 

Last edited by 94 12valve; Dec 4, 2009 at 02:13 PM. Reason: Automerged Doublepost
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Old Dec 4, 2009 | 02:20 PM
  #18  
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Now you don't need to drill an extra hole for DP

A big 10 4 on the mistake of watching the gauges.
 
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Old Dec 11, 2009 | 05:26 PM
  #19  
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Alright, I remounted the EGT probe to the rear runner pre-turbo, how do these numbers sound? bear in mind it's cold out too now

cruise - 5-600F
full load, I've seen it touch 1100F
Boost - touches 32 PSI and comes down to about 27 or so
 
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Old Dec 11, 2009 | 06:04 PM
  #20  
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1100* pre turbo is hot I would not run it there very long
 
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