this is my very first supra . need help please
 

. i seriously need help. i have a supra mkiv
ok . i changed my engine and gearbox . put in the aristo engine 2 j and gear box . "the old one was f*cked"
but I'm having this issue … when ever i want to floor the car either it dies or the turbo dies resulting in the car slowing down "its auto/trip tronic".
but if i put my foot on the gas and slowly start to push it then it ok but even then at times it dies . , need help.a cupple of guys told me that the car dies due to boost/turbo cut

what is the boost set to now

1) Please watch the foul language - this is a 'family friendly' forum.
2) Please describe more about your Supra's configuration. For example:
....a) Was it an Mkiv TT before you put in an Aristo engine?
....b) What device are you controlling the boost?
....c) Which electronic device are you using to eliminate fuel cut? etc.
3) As warmkop asked, how much boost are you running?
4) Have you checked for boost/vacuum leaks?