[RedSuns]

from MY experiance with my S14 SR is that the VVT/VTC(whatever you want to call it)....it is controlled by the ECU(duhh) it uses the readings from the MAFS,TPS and VSS sensors...i did 8 dyno runs....and then i compared the different curves....the different boost levels yeilded different results(of course) but when i changed throttle positions i began to notice a slight change in the curve.....i have been doing a lot more research on the system in hope to be able to safely upgrade cams while still using the VVT/VTC systems.....i have heard of it being done...but the tuning is tedious.....if anyone sees any flaws in what i just said be sure to let my know IN A NICE MANOR OR I WILL GIVE YOU A DIRTY LOOK THRU THE INTERNET(if is possible)