With this new setup, with original pinion, the Whisper fly with a 2S lipo battery. The esc has not the governor mode, it is a car's esc, so the idle up curve is classic 100 - 85 - 100.
It flies for about 9/10 minutes with 3000mha; the final temperature of esc is 54° and motor 48°. The esc can get a lot of fresh air from big front air intake.
Here is the previous post about my whisper