That statment is only partialy true. The reason that "peak horsepower" is at 7200, is thats where honda quit reving the engine and placed its redline there. It is a little known fact that the h22a produces its actual peak hp at around 7600 rpm BUT the valves start floating at 7200 which is why they put such a low red line on them. I have a reprogramed ecu which moved the revlimit to 9600 and vtec kicks in at 5800 The h22a still makes PLENTY of power all the way to 8000. I have accidently reved it to about 8600 (my best friends little girl was playing with the button for the shiftlight on my tach in my car. I started racing a mustang and waited and waited for the shift light to come on it never came on because she had set it to like 11000. but i looked down and low and behold 8600)but its useable power is gone at about 8200.