1.8T with K03 turbo = 150hp; found in early New Beetles
1.8T with K03 Sport= 180hp; found in GTI, later NB's, Passat
1.8T with K04 Sport turbo = 225hp; found in TT Quattro
Chipped K03 cars regularly put down 180whp and 200+ torque. Let's not get into the ones with bigger injectors and 3" turbo-backs.
The "1994 Volkswagen Golf III GL 9.8 16.7" you listed is a Mk3 2.0L; not a 1.8T. Though the VR6 time seems slow- stock with good tires is typically 15.1 or 15.2 @ 90mph.