It uses the factory Triumph computer. I have a program that allows me to modify the factory computer timing and fuel maps among other things. I'm going to use a HKS AIC to control the additional injectors, and full knock control with boost retard will be handled by a J&S Safeguard unit. Not an ideal setup having three computers but they should function fine together and I had two of them already. When/if I get to phase 2 I'll probably go standalone to simplify everything.
This project took a back seat to riding the turbo Yamahas this winter, but I'm very much looking forward to completing it over the summer and having it ready to rip next fall.