I know the motor is a JUN 2.2 Litre (and just about everything else) built by Croydon Racing Developments. I think JUN competed in GT300 class in JGTCC (with an S14) at one point against Nissan factory built cars and did pretty well. They def. have a decent amount of experience with SR forward technology. Supposedly power is around 750 with a GT42XX turbine.
Check out this classic piece of machinery...
http://www.fullboost.com.au/vidzz/fu...te_gasrite.avi