egt temps? - Chevy and GMC Duramax Diesel Forum
06-07.5 LBZ & LLY Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect

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Old 02-05-2008, 10:50 AM   eBay Motors  #1 (permalink)
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egt temps?

where should I set my max egt at? I have it set at 1250, but if I get on it very hard it hits it and defuels on me. Should I have my pyro in my exhaust manifold instead of the turbo downpipe?
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Old 02-05-2008, 11:03 AM   eBay Motors  #2 (permalink)
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Yes, it will have a different temperature. Also as for setting it, I have been told that 1350, the heads on a Duramax start to melt.
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Old 02-05-2008, 11:22 AM   eBay Motors  #3 (permalink)
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Having it post turbo, towing i would not go over 1100 deg or 1300 if it was pre turbo. If you are just messing around on the street and running it hard in short burst, set it to max for short burst you wont hurt anything, myself and others have easily pegd 1600 and 1800 deg gauges while sled pulling or drag racing. Egts on these trucks run over 1250 degs stock!
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Old 02-05-2008, 12:07 PM   eBay Motors  #4 (permalink)
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my egt probe is on the driveside exhaust manifold and i can easily see 1200-1300* on a hill with a trailer and the most i have seen was 1760* but on sort bursts it won't hurt it but my pryro is before the turbo so after the turbo i wouldn't let it go above 1100-1200* max.
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Old 02-05-2008, 12:07 PM   eBay Motors  #5 (permalink)
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ok, thanks. right now i'm just running around. during the summer i pull a 20' boat with it. so i'll turn it down while, i'm towing.
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Old 02-07-2008, 05:15 AM   eBay Motors  #6 (permalink)
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What is the ideal place for a egt probe to be located?

Randy
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Old 02-07-2008, 06:35 AM   eBay Motors  #7 (permalink)
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Quote:
Originally Posted by Maxed 08 View Post
What is the ideal place for a egt probe to be located?

Randy
Exhaust manifold, You can drill and tap your's or buy a BD exhaust manifold they come pre drilled for a EGT probe for the drivers side. If you drill your own, drill the passenger manifold there are some pics on kennedy diesel for placement.
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Old 02-07-2008, 06:51 AM   eBay Motors  #8 (permalink)
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the most accurate place is the driveside manifold but it isn't the easiest place to get to.
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Old 02-08-2008, 01:24 PM   eBay Motors  #9 (permalink)
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The manifold for sure is the safest place to tap. There can be as little as 50 degrees to as much as 600 degrees (depends on thottle position and load) difference in temps between the pre and post points. Measuring after the turbo is just guessing.

Bob Riley

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Old 02-08-2008, 02:01 PM   eBay Motors  #10 (permalink)
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Quote:
Originally Posted by DIESELSITE View Post
The manifold for sure is the safest place to tap. There can be as little as 50 degrees to as much as 600 degrees (depends on thottle position and load) difference in temps between the pre and post points. Measuring after the turbo is just guessing.

Bob Riley


X2 Well said!!!
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