I've seen this topic being flug around these forums for a bit, and I know a bit about the mechanics of motors in general. However, being here for a few months, and reasonably active at that, I've learnt alot about the Nissan RB range of engines. Now being a VL driver, 3spd Berlina, I'm looking at ways to get a tad more oomph without massive $$$'s. Atm I'm looking at installing twin hyclones, a new ecu, 2.5" exhaust and a new K&N filter. However, I would like to do this advanced cam timing that I've read about here. All I would like is for someone that has done the procedure, or understands the technicalities of it to outline exactly what it is about. I've read someone talking about advancing the cam 12 to 15 degrees, and others talking about Nissan setting the cam on the 53rd tooth whilst Holden pegged it back to the 52nd tooth, like, what is the diff between '52nd to 53rd tooth' and the '12 to 15 degrees' stuff. Am I right on that? or no? Could someone please clarify this for me so I know what I'm in for.... Cheers: Marco.