All of the lines on this graph are whp as measured at the front wheels on our Dynocom chassis dyno. The IS38 is doing around 380whp on 91 Octane, our turbo is doing 445whp on 91 Octane, and 500whp on E30. I haven't done a direct comparison with the TTE525, so I can't answer that question honestly.
Thanks
-- Ed
What I think is most important about these graphs is that they are all on the same dyno and same car I assume (the shop R?), but comparing anything other than the area under the curve is not a fair comparison to other cars, turbos, tunes, and dynos as far as peak numbers.
For example, these graphs showing WHP, 380whp out of a IS38 on 91 octane is right at the top of the heap for output on that turbo, and those numbers are closer to cars running better fuel, W/M, secret sauce, etc. (e.g. RJRacing who trapped 126mph on a maxed IS38)
This should be common knowledge for anyone looking at dyno graphs, but peak numbers don't translate between dynos for a variety of reasons. What does translate are 1/4 mile/trap numbers, 60-130mph sprints, etc. Things that can be timed and compared based on DA.
So using any dyno sheets from the EQT dyno on their car, or other cars on the same dyno will give you a repeatable proof of performance, show improvements due to tuning or setup changes. From 380whp on an IS38 to 500whp is a 120 whp gain with their turbo, upgraded fueling and some ethanol, and that's great. However, comparing just peak numbers to competitors in completely different circumstances just isn't helpful.