Measuring across there 41mm front and rear, looking on the turbo technics site it doesnt look like it will bve good for much more power, so may need to find another soon lol, or if the cam makes a difference the I can lower the boost.
I will give him a call as I know he stores all of the runs.
The S116 utilises the standard T2 unit but is supplied with a larger compressor wheel and housing, to increase power, and is matched to a larger turbine housing which will increase flow, with minimal effecting on spool up times. A fully screwed down 270 degree thrust bearing is used, enabling higher boost applications, while helping to keep costs down. The unit comes supplied with a dynamic seal to help improve response, and an uprated actuator means this unit will safely run up to 13PSI. With minimal engine and fuel modifications, this turbo will flow enough for up to 150BHP maximum.