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P47D which has better dive acceleration.
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This is wrong. You are confusing terminal velocity with aceleration.
At Vmax:
FW190
9418lbs * sin 45 = 6660lbs excess thrust
a = F/m
m = 9418lbs/32.2 = 292 lb-s^2/ft
a = 6660lbs/292lb-s^2/ft
a = 22.8 ft/s^2 for the Focke Wulf
P47D22:
13500lbs * sin 45 = 9546lbs
a = F/m
m = 13500lbs/32.2 = 419 lb-s^2/ft
a= 9546lb/419lb-s^2/ft
a = 22.78 ft/s^2 for the P47D22
That is the best case scenario for the P47D22.
If we dive from say, 260 KEAS, then we see 25.35 ft/s^2 from the FW190 and 24.4ft/s^2 from the P47.
The FW190 has a .95ft/s^2 advantage in aceleration rate.