I have a 2002 escalade with a ATI procharger kit. I run 8lb's of boost and I run the quarter mile in 14.16. I would recommend using this charger over any other. I have seen 6 litre trucks with every available charger (whipple, Magna , Vortec). None even come within a second of the ATI procharger. If you have any questions at all please feel free to call me. (Phone number deleted and noted - not a supporting vendor)
My name is John. We install many of the chargers on h2's and other 6 litre or 5.3 litre trucks
I have a 2002 Cadillac Escalade EXT, AWD, 6.0L, 30k, on mornings and on cold starts, the engine will rump and and down in a pulsing mannor for a about 5-10 seconds, if the truck is in gear, it lunges up and down like it is stalling for gas, or similar to stalling a manual car. It has also happened at stop lights on occasions and it really makes the truck sound sick. I've taken it to the dealer twice now for the same reason, they report they have not experienced it, the truck is at the dealer currently, and i've asked them to keep it overnight and try starting it in the morning and putting it in gear, and see what it does, it does it EVERY morning, it stays in the garage, 75-80 Degree temperature.
Has anyone experienced this? and if so what can be the cause so that i may notify the dealer.
Sounds like your "PCM for less" is where you should start. Right off the bat that doesn't sound good. The computer isn't communication correctly with one of the many cold start components, Once the engine get's up to temp they all mesh. Without plugging in and running a diag, who knows, it could be a number of things, strating at the MAF and going all the way to the PCM itself. I don't know if the diagnostic machine would read a trouble code correctly due to the mod of air intake (10 PSI as well as the modded PCM), incompatible software. Best of luck.