.. between the hks t04r and t04r cutback:

this is a key so you can tell what the numbers are:

Turbo Output, Compressor Wheel, Compressor Housing, Turbine Wheel, Exhaust Housing:

PS, Trim Inducer (mm), Major (mm), Inlet (mm), Outlet (mm), A/R Trim Major (mm) Exducer (mm) Inlet Flange Oulet Flange A/R

first :
T04R 650ps, 63, 66.7, 84, 100, 60, 0.7, 76, 74.2, 64.7, T04 Flange - 1 Port Insert Type - 65.75 mm 0.81
T04 Flange - 1 Port 0.96
T04 Flange - 2 Port 1.15

second (cutback):
T04R Cutback 700ps, 63, 66.7, 84, 100, 60, 0.7, 76, 74.2, 64.7, T04 Flange - 1 Port Insert Type - 65.75 mm 0.81

is the t04r design to spoolup faster (i think no, just designed for more hp at top end, but it has a smaller a/r compared to the bigger .96 and 1.15 that you can get)? i'm confused, is there a write up that explains all this stuff?

and if anyone knows how does the t04r compare to the t78 (not about lag but top end power)?
and is the t78 based on a t04 (manifold)?

luigi