392 Oil Temp

[beckbuilt]

Has anyone had their 392 re-tuned? I swapped a 392 into a JT and was shocked to see the AFR numbers from the factory tune. So suprised that I pulled the passenger side cat off my Factory 392 JL and added a bung so I could compare it with the swapped JT. Same numbers! 14.8-15 unless your at WOT, then it'll dive to 12.0-11.8. Being this lean is definitely contributing to warmer oil temps.
These engines are running Mopar's Artificial Neural Network instead of speed density, so it's a bit more involved than bumping up injector PW.

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[bthomp]

Has anyone had their 392 re-tuned? I swapped a 392 into a JT and was shocked to see the AFR numbers from the factory tune. So suprised that I pulled the passenger side cat off my Factory 392 JL and added a bung so I could compare it with the swapped JT. Same numbers! 14.8-15 unless your at WOT, then it'll dive to 12.0-11.8. Being this lean is definitely contributing to warmer oil temps.
These engines are running Mopar's Artificial Neural Network instead of speed density, so it's a bit more involved than bumping up injector PW.

I'm interested in this thread also, if anyone has updates would be great to post. My 392 running in the Colorado Mountains today (18-20 degrees F, between 7000-9500 feet), oil was between 240-250 degrees.

 

[stumblinhorse]

I'm interested in this thread also, if anyone has updates would be great to post. My 392 running in the Colorado Mountains today (18-20 degrees F, between 7000-9500 feet), oil was between 240-250 degrees.

Hemi engines, by design, also use oil for cooling. So a hemi oil temp under load in the 230-250 is normal. I see that temp on every drive I take even when air temp is below zero. That is why oil changes are 6 months/5-6k whichever comes first. They are hard on oil.

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