Real world data. Rb26 at 86.5 bore, stock stroke, all steel internals (endurance spec build, probably overkill, but I hate failures), Tomei 280 degree 10.8 mm lift cams, Tomei cooling channel pistons at stock CR, Motec M800 ecu, stock TB's, stock CR, mildly ported head, all manifolds port aligned, stock ported cast manifolds, NO AFM's, MAP / Throttle based but with 4D mapping, stock elbows, -10 turbos, 3 inch ultra quiet exhaust (98Db at 2/3 max rpm static), 850 CC injectors off single 044 pump, in a GTS-T RWD shell. 1.2 bar boot. Motec shows absolute, not gauge pressure. mikey whatsisname speaks a lot of sense, IMHO.
http://www.gatesgarth.com/datalog.png
In car with basic data overlay from same track day:
Manually synched to video, so a tad out, sorry.
I want to try the bigger -10 turbine housings. Car is a pussy cat on the road, no shuffle at all, totally pleasant off boost and at cruise. Would benefit from a less restrictive exhaust system, exhaust manifold pressure V boost pressure ratio is not brilliant, but here in the UK noise is a major issue. Car runs from the roadside pump Shell V power, no det, no issues.