6.7L Cummins Forum

Now that I finally got my EGT thermocouple installed and had a chance to drive my 100 mile route with the turbo timer operating last night I've come to the conclusion that without it I would have seriously shortened the life of the Turbocharger. Even at 30 mph's and then pulling into a parking lot and stopping (Unloaded) there were times that the Exhaust Gas Temperature (EGT) was well over 650 degree F.

I remember a time back in January when I was driving out on the highway at 3AM on my way home and this State Trooper pulled me over because I had touched the outside line (JUst being nosey) and I was so hacked off that I shut the truck off when I stopped. I now know that at 70 MPH the EGT is around 1000 degrees F (1200 degrees when Regenerating the DPF), Not a good thing. So even if you don't get a programmer I highly suggest a Turbo Timer and a EGT read out of some kind for the longevity of your Cummins Turbocharger.

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2007.5 Dodge Ram 3500 HD,QC, 6.7L Cummins, 6speed Auto, 4X4, Bighorn Edition.
Click for installs: Carr Steps PML Diff Cover Edge Juice with Attitude Volant Intake Hankook ATM RF10

Squid, can you give us some idea of how long the engine idles before shutting down and what was the egt temp when you parked it?? My thermocouple installation give me a very close idea of what the turbo is seeing but I do not have a timer. It would be very useful information.
Also, have you had the edge up to the highest setting yet?? If so, what do ya think??
Also also, that edge setup is a very cool unit

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7.5 3500QC 6.7CTD 68RFE Build date June 2007
Superchips tuner 3808, Boost/EGT Laser Gauge, Airaid cold intake

I'll do that tonight. I sent an E-mail to Cummins asking them what was the suggested EGT for shut down but haven't heard back and while I was on their site I discovered that the Chassis cab has a turbo timer operated by the ECU, stock. Go figure?

As for the Edge all I did the last 2 nights is play with and compare the stock and mileage (Level 1) settings and there's a 1.7+ MPG difference between stock and level 1 per the little overhead annunciator. Right now at 70 MPH it's showing 16.7 MPH and in town it's been up over 18MPH. ( I have the 4.10 rear end)

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2007.5 Dodge Ram 3500 HD,QC, 6.7L Cummins, 6speed Auto, 4X4, Bighorn Edition.
Click for installs: Carr Steps PML Diff Cover Edge Juice with Attitude Volant Intake Hankook ATM RF10

Is level 1 the recommended towing position?? What are you getting towing, how much weight and what is the trailer configuration??
I'm getting 15 mpg overall in light stop and go driving. The Superchip programmer is set at extreme (not while towing). No difference in egt from the towing position unless I get on it. I like the short burst, look of unbelief, and set you back in your seat as this animal does her thing. I don't go fast but I sure like quick.

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7.5 3500QC 6.7CTD 68RFE Build date June 2007
Superchips tuner 3808, Boost/EGT Laser Gauge, Airaid cold intake