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1431 Views 7 Replies 6 Participants Last post by  nate-roth, 
Hellcat43
2015 Charger HC. The only mods are 180 stat, ATI 10% lower, deatschworks 1100 injectors, 1000hp driveline. Car keeps going into Catalyst protection mode dumping fuel at WOT, sometimes at 60-70% pedal. If I start cold, idle for 60 seconds and get into it, car runs amazing. Elevation 2500' building 12-13 PSI with this setup. Tuner seems knowledgeable and very friendly but he cannot remedy. Didn't really want to delete cats and was told I wouldn't have to. Hard to believe the cats are engineered for 700hp and not a penny more. Any ideas?
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ArchGE
My engine builder is also saying that powered up motors are burning out cats and won’t recommend them when bumping up to around 800 HP or so. I have to take the car to him for a cat installation come emissions testing time, just to pass, then off again. Sounds about right on yours for cat overtemp. sensing.
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