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As it turns out, the 2.8" pulley is 8ps!
I can't win with this engine, anyway back on 98ron and making almost the same as E85 on 7psi.
Made 380rwkw, 824nm what to do now? Me thinks coils.
The plan was to crack 400 on 10psi. For some reason going from a 3.4 to a 2.8 didn't achieve that. For every .2 you drop you gain 1psi apparently. I changed 4 belts to make sure the tension was spot on as the rpm goes higher but no win. Other mods, wheels went on last week running 275 on the rear now which helps. Splitter and body modes are on the back burner until after coils. They should arrive in a few weeks.
I'm heading the Heathcote on the 15th to run some times, it drives good, has plenty of pull, not as snappy as when on E85. This is my third tuner, happy with the result just disappointed with the pulley.