Have had my 97 on the FM hot side with the gt2560r for about a year now. 2.5inch turbo back exhaust. Stock block. Was running on a ~very rough~ street tune for a while and I just finally got it to the dyno.

It was tuned by a well known local tuner who said he has tuned many turbo miatas and was happy with the outcome. Made 207whp/206wtq (@14ish psi mid range tapering down to 12 psi up top) and this was on a mustang dyno - so I think I'd see around 230/230 on the more typical dynojet/etc..
Based on that corrected power figure (as well as seeing a 15psi peak after leaving the dyno and hitting cold air on the highway) I'm planning on turning the car down around 2psi to make sure things are safe (looking for consistent 210whp/210wtq on virtual dyno pulls).

Thoughts? Would you keep it or turn it down a bit?


dyno sheet

 

Why is it dropping up top? Are you using electronic boost control?

I'd pull a couple pounds out at peak torque and ramp to 14 up top.

 

Intercooler pressure drop: my MBC is sourced at the compressor outlet. Just didn't have time to re-do my MBC source to the cold side piping before my dyno appt.