This was posted on the Type 1 fighter over at J-Aircraft by rdunn. He has access to many prime documents.
Information taken from the Pilot manual issued by Akeno Flying School (16 Jan 43)
Type 1 Fighter, model 2
Max speed 515kph @ 6000m (2700rpm +200 boost); 504@3000 (2700 +125)
Stalling speed w/o flaps 120kph; with 30 deg flaps 105kph
Turn performance - left 93.7m radius, 10.8 secs (330kph, 2700rpm, +200)
right- 91.9m, 11.0 secs at altitude 600m
Climb to 1000, 1m13sec, 13.87m/s, 235kph (2700 +200)
Climb to 6000, 7m24s, 9.9m/s, 210kph (2700 +110)
Loop initiated at 350kph, speed at top 130kph
Loop roll (Immelmann?) Initiated at 350kph and 2300rpm altitude gain about 500m
Initiating climb at 350kph a 50 deg climb can be maintained 1000m, final air speed 180kph
Although possible to perform the following maneuvers are to be avoided - half rolls, fast barrel rolls, spins, inverted climbs, and steep pull ups at high speed.
"Somewhere out there is page 6!"
"But Emillo you promised ....... it's postpone"