Originally Posted by
jbehe
This is a 426 forged engine and the supercharger is a larger F1S. I didn't build the vehicle and there are many problems with this particular setup for instance, this sp should have a cogged or at least a 10 row belt. This one uses the stock belt width so slipping is a problem. Also, the large intercooler is mounted behind the bumper so IATs are always high. I need to find a solution to their stalling/reset issue to make this car viable. Don't beleive that it's a tuning issue at this point. Resetting the ecu really only resets adaptations so I don't understand why that's the only way to get the engine to restart after it quits running.
I had a similar issue many years ago with an Audi RS6 that I had tuned. After so many key cycles it would get an eeprom error code then would go into limp mode. Turned out to be a hidden checksum that the tuning software didn't know about and recalculate correctly.
Adding one more thought about the difference between the DS and HPT, it seems that the prevailing thought on the DS side is to leave NN on which is what was done originally. It seems to me that most info on the HPT side says that really isn't the best way with a modified vehicle and should be turned off in this case. I tend to agree with that.