350z RevUp with rev hang?

[da.murf]

Hey so I've noticed recently that when I blip the throttle to 4k the revs tend to hang momentarily before returning to idle.

 

Is this a normal characteristic of fly by wire throttle?

Video below

 

 

Thanks

[Ekona]

Dual mass flywheel and clever mapping, basically. It's designed to slow the rate of the rev drop, so that changing gears is smoother.

 

My Ranger does it to an excessive degree, it works quite well in fairness but it is a pain when you're trying to rev match yourself.