I've tried a couple of times to make a hoover on my AN1x, but I didn't get really close. Recently I've bought a MKS-50 and I think it's almost impossible to make the same sound with another synth.
On http://kickme.to/hoovers you can find a hoover patch for the alpha juno's. Maybe you can get close by using roughly the same settings on your JP-8000?
Isn't there some sort of hoover patch on the Virus called "Rotterdam"???