More or less. The 88 tc engines had a larger VAM (vane air flow meter) and an intercooler, as well as the ECM (computer) to match the larger VAM and an intake air temp sensor since it was intercooled. The XR4Ti had the same engine with a small VAM, no intercooler, and no intake air temp sensor, as well as a different ECM. The difference in electronics and intercooling puts the tc's engine at about 205 HP vs. the XR4Ti's 175 HP.
Other than that the 87-88 tc engines have a really small IHI turbo that allows the engine to make boost at low RPMs but really becomes a drag with much over 200 HP. The XR4Ti's, and older TC's had larger Garrett T3 turbos that didn't spool as quick but don't limit power pontential nearly as soon as the IHI's.
So basically the best swap parts are the 87-88 tc electronics with a T3 turbo from an XR4Ti or older tc. Unless the engine is going in a 4x4 and all you want is 200 HP, then the IHI turbo might be a better bet.