OK I have found the graphs, but my scanner is playing up so here's a rough comparison:
The dyno runs were done on a dyno dynamics dyno in 4th gear (R33 GTR) and in the same mode (non-shootout)..
At 95km/h, the T517Z's were making 85kw, the 2860R's 95kw
At 112km/h, 105kw compared to 140kw
At 128km/h, 155kw compared to 240kw
At 145km/h, 255kw compared to 305kw
At 160km/h, 330kw compared to 325kw
At 178km/h, 360kw compared to 350kw
At 194km/h, 365kw compared to 358kw
These figures were taken from a dyno reading AT THE REAR WHEELS.
The same dyno was used.
The car essentially had the same components, same exhaust, cams, ecu etc...
As you can see the T517Z's were no match down low and midrange of the 2860R's is phenomenal..
Though when the T517Z's finally do wake up, they make quite good power..
I prefer higher average power than higher top end power...
Others might like the waiting and then big rush of the turbo spooling at full boost.
The 2860R's have a more progressive power delivery..
From the graph its evident which are more responsive...
Hope that helps...
P.S once the scanner is sorted, I'll post up the graphs...