As far as i believe;

3 door/ 2wd & 4wd saff all use the T3

Escort big turbo - T34
Escort Small Turbo - T28

Only the RS500 had a T4 as standard

T35 and T34 are the same turbo. Some people just use different names. There is 3 different housings for the T34/35 (.48 .55 .63)

Hope this helps