'90 - '94 ECU Tuning

For my understanding, the ECU used for the 1990 Generation Celica uses a eprom chip. I am considering building a 5SFE Engine swapping over the 3SGTE parts. IE: intake/turbo

What am I looking at to tune this with? Is it just a burn EPROM chip or do I have to do something else? If using the EPROM chip, what do I need? And are there burns already for it.

no one knows what i am talking about huh?

would be too much trouble. The intake from the GTE would probably not bolt up to the 5S head, on top of that, the 5S probably has higher compression, and is not built for boosted applications. The concept of the "FE" designation is to be a more economy class engine.

Also, Toyota ECU's are really not designed to be reprogrammed.

You would be better off just getting a 3SGTE front clip and swapping the motor into the car with the harness, ECU, and all electronics.