sCreamin400

Was thinking about a boost fooler to go with my smarty as only seeing 25-27 ponds of boost. I remembered I have an xzt box in my toolbox. It is an older version. None adjustable but worked pretty well on the truck. I would see boost numbers in the lower 30's. How well would this stack and save me buying a fooler? What would I have to set the smarty on to not hurt my truck? I hate how the xzt can throw codes every now and then even greased but it is paid for. Thanks in advance.

soulezoo

IIRC the xzt is a pressure box. Find out if it also increased timing. If so, then you need to run no timing (even SW) on smarty.

It should stack and you can run smarty on the power level you do now with the proviso above about timing notwithstanding.

sCreamin400

Ok guys let me give you an update. This makes no sense to me. Two days ago I was playing with my smarty on nine. 25 pounds of boost with or without wastegate. Today I decided to stack it with my xzt box so I backed the smarty down. Boost was 30's with some smoke. Ok a lot of smoke. Went for a ride over to my buddies and the brake/abs light came on with no codes. Got nervous and took off the xzt box as this thing throws some weird codes and part of the reason for getting the smarty. Put the smarty on 6 and shut the waste gate off for the heck of it. Instant almost 40 pounds of boost. What the heck was that? I will never hook the xzt up to it again if it can boost on it's own. I may someday stack but not with this box. Any ideas what happened there?