Tim: I double checked the in-game MAP, forgot to check the E6B when I did that.
I assume that WEP is the same as takeoff? Seems several planes have similar TO/WEP ratings.
So here's the thing, though. If 5-min WEP is still only 45" or so, at that setting in-game, the P-40E performs no better than the P-40B.
So, even if you de-rated it to the historical settings (not counting 1-minute takeoff) it's too slow.
Look here:
http://www.gonzoville.com/ahcharts/index.php?p1=p40b&p2=p40eThe full throttle (no WEP) is 44 at 3000 RPM. In the chart that's the "no wep" speed chart. You see almost no change in speed, and a loss of climb.
The real deal was supposed to do ~360 TAS at 15k. At no-wep full-throt now, it won't even come close!
So, maybe we can get some more info here on the proper P-40E power and climb charts, and maybe then Pyro will correct it. Just looking at the WEP curve now shows the FTH is way lower (should be max speed at 15k on max power, shows as around 12-13k)