5.9L 24V Performance Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps Related To Performance And Longevity

EGT how hot is too hot?

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Old Jul 21, 2010 | 06:00 PM
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Default EGT how hot is too hot?

Just installed Raptor 150 and draw straw so now fuel pressure is not an issue and I can open up the throttle if I want. If I get on it real hard with my edge on 5 my EGT gets up to over 1500. I back out of it when it hits 1500, my question is how hot is too hot?
 
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Old Jul 21, 2010 | 06:01 PM
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from what i've heard 1200 is as high as you want to push that turbo, but it's up to you 1500 for a couple seconds probably won't hurt anything
 
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Old Jul 21, 2010 | 06:16 PM
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OK, I was thinking that 1500 was probably too hot. I guess I'll set my alert at 1200 and keep it safe. Thanks Bobcat.
 
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Old Jul 21, 2010 | 06:39 PM
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yep, i could be wrong but i've heard 1200 is where you should calm down, and 1350 on common rails with stock turbo's so everyone is different
 
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Old Jul 21, 2010 | 06:41 PM
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I can't see your signature as I am on my Blackberry, what turbo are you running?
 
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Old Jul 21, 2010 | 07:17 PM
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Originally Posted by RAWilliams
I can't see your signature as I am on my Blackberry, what turbo are you running?
I'm assuming stock being as it doesn't mention turbo in his signature
 
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Old Jul 21, 2010 | 07:19 PM
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being that i fried the rings on my Dmax @ 1500° i don't recommend it... but i bet the 6BT is stronger than a LLY
 
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Old Jul 21, 2010 | 08:16 PM
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Yeh, I'm just runnin the stock turbo
 
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Old Jul 21, 2010 | 08:39 PM
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An HY35, that has a a wastegate with NO hose running to it? If so, plug that bugger OFF! I did that for many months and never did any damage to the turbo, and was able to reduce m EGT's by 400 degrees. With it plugged, and making 30 PSI I never went over 1100 EGT's, before my injector upgrades. With the wastegate active and set to 18 PSI, I easily hit 1500 EGT's.
It is a little tricky to plug off a wastegate that it a metal tube, but is possible. I took a machine screw, 10-24 size, and thread it into the tube that inters the compressor housing. After it was in there, I used a bench grinder to reduce the size of the head so it can fit back into the compressor housing. Worked like a damn, that's for sure. I sold that turbo to a buddy I used to work with 6 months ago, and it is still working 100%. Granted I did remove the plug before I sold it.

Best of luck, let me know if you need any more info.
 
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Old Jul 21, 2010 | 08:44 PM
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you can run 1300* all day long and 1400-1450* for short bursts on these cummins engines much over that and will start melting things down so i would say 1500 is too hot
 
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