EGT's post turbo - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 3 (permalink) Old 08-13-2007, 08:24 PM Thread Starter
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EGT's post turbo

My dad's 1997 he just bought has the pyro in the turbo down pipe, I am going to move it but what would be a safe temp since the pyro is post turbo.

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post #2 of 3 (permalink) Old 08-13-2007, 08:30 PM
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Safe? about 1000... MAX! There is no safe number with a post turbo pyro...

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post #3 of 3 (permalink) Old 08-13-2007, 08:31 PM
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Move it pre-turbo as soon as possible!!!

I run both (pre-turbo and post-turbo) pyrometers on my truck. The difference between the two is proportional to how fast the pre-turbo temp is changing. If I am really screaming up a hill with a load (and the pre-turbo temps are rising fast), I might see 1200 pre-turbo but only 800 post. If I had been going downhill before climbing that hill (and hence had a very cool post-turbo temp initially), I'll bet I would see a higher temperature differential. Since the differential is dependent on how hard the truck is running, there is no magic number which will equal 1250° pre-turbo.

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