it feels alot quicker cuz it has a turbo so it hasa lil bit more torque...
as soon as the turbo spins up it will pull whereas with a natural aspirated 16v engine like the z22se it will start pulling lineary from 3500 rpm's
A turbo drives way different and thats why it SEEMS so much faster while in reality the 0-60 time is 8.5 seconds wich is only 0.3 seconds faster then the z22se in a coupe
But maybe he has got it chipped? that way it should have around 200bhp and 0-60 time should be around 7.5 secs.