1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

How do i read my Pyro gauge ?

Old Jan 9, 2013 | 06:13 PM
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1993cummins's Avatar
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Default How do i read my Pyro gauge ?

what should my pyro be reading , what is the safe zone ? , thanks
 
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Old Jan 9, 2013 | 11:02 PM
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i usually like to keep mine under 1200 although i have heard short runs to 1500 won't hurt anything. just make sure you let it cool down to around 300 before you shut your truck off.
 
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Old Jan 9, 2013 | 11:26 PM
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Originally Posted by 1993cummins
what should my pyro be reading , what is the safe zone ? , thanks
Where is the exhaust gas temperature sensor located at?

- In the exhaust manifold just before the turbo?
OR
- In the exhaust down-pipe just after the turbo?

(There's typically a 300*f difference between the two locations, with the down-pipe location being the cooler).

The sensor mounted in the exhaust manifold is the more desirable location. With that:

- 1250*f MAX at a 100% duty-cycle (WOT, all day long).
- 650* ~ 750*f is typical for a light-throttle at about 60 ~ 70 mph.

 

Last edited by BC847; Jan 10, 2013 at 12:09 AM.
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