Sorry to spoil your fun gents but no that car in the link above does NOT run a roller bearing turbocharger and thats the fastest vl turbo in Australia and i know that for FACT.
neither does 2nd,3rd,4th,5th,6th,and so on up to 19th position on that above list but then again you'd know and im wrong right??(dont know the last guy coz we dont do his turbocharger)
Nah mate i think the onus is on YOU to prove me wrong as i know for FACT they ARE NOT roller bearing turbochargers on them.
If you were in melbourne i would show you personally whats used and dont worry there are a few up and coming vl turbo's that are coming out with some large BB turbo's so i can virtually garantee you these ridiculous spool times you currently see will be cut in half and more than likely vanish over time altogether as they get more and more into them and work out whats ideal for optimum performance and spooltime.
And judd the roller bearing TA45/51 units are relatively new and untested on vl's as yet not many owners want to fork out such a large price for them as you can get the same spec unit in bush type for 1/2 and the price there fully rebuildable.
The BB side of things is just starting to catch on just wait a little while and see.
Sammut brothers 300zx used to run 7.8's @ over 178mph with a SOHC RB30 and powerglide transmission with old twin bush type bearing turbochargers(non intercooled) on shitty old mechanical fuel injection and that was more than 5+ years ago. Fastest GTR in the world today with its featerweight body superior AWD all its super duper electronical and mechanical gadgetry with a superior DOHCams and 24valves can only muster a just slightly faster 7.5@181mph.
Whats the relevance of this you say WELL they had 2 smaller turbochargers and worked hard on there turbocharger selection and had it so down pat that it would take 1 hell of a LARGE single roller bearing turbocharger to get the spool time these guys were getting hell they could even leave all the supercharged outlaw V8's for dead and did so for 4 seasons in a row showing that not only is the RB30 a weapon of an engine but also if correctly fitted with the right turbo compressor/exhaust housing combination it would practically have no laggy spooltimes.