vtec controller for FD1

[aaronng]

I didn't think of looking on their site!
http://www.hondata.com/reflash.html



looks like we've got a lame, unreflashable K20

curious/stupid question: what makes the K20z2 different from the K20z3? can it be easily changed?

The K20Z3 is the one used in the DC5 Type S. So you get proper VTEC head and lightweight components in the block, plus your usually high RPM intake manifold and exhaust headers. Also, that runs 95 RON minimum instead of the 91 RON that the K20Z2 requires. If you want to change it, do an engine swap. But you'll have to research on your ECU options.