How to avoid turbo surge

[creeker6.0]

Will custom tunes be easier on my turbo than the ones that come with sct i seem to notice if i let off the pedal to quick sometimes my turbo makes this sound i was told is called turbo surge and its not good on the turbo i was going to order custom tunes but was wondering if this will cont in the future if so maybe ill just go back to stock i dont have the money right now to replace a turbo cause i want more power

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[Lilpooh]

Stock or tuned, when you let off the throttle too quick, you will get the turbo to fart.

[kk_kalina]

im new to the diesel world and idk how it works its said its not needed but in the car performance world we deal with turbo surge with a blow off valve or bypass valve

[jesilvas]

Turbo surge is different than excess intake pressure, kinda.
Here, turbo surge is widely accepted to mean the point at which the turbo and motor is under load and the motor can not accept the air the turbo is trying to force in or that the turbo can not force any more air in at a certain RPM or load. More of a chatter while you are under load.
Excess intake pressure is when you suddenly take the load off the motor while the turbo is still pressuring the intake system. The motor can not use the air and the turbo can not pressurize anymore air in so it just all blows out the compressor side of the turbo. Every time a "big rig" shifts, you can hear this.
6.4s, I've read, need a BOV a little more than a 6.0, or any other powerstroke for that matter, but they don't them that bad.