the cosair was capable (though very rarely done) of taking a single 2,000lbs bomb on the centerline and 2x1000lbs on the wings...from land bases. standar load out was more like 2500-3000lbs. where did you find information that claims any -a model 190 carried 4,000lbs?
It was very rare, like your 4,000 lbs bomb load F4U. Normally the maximum load was limited to 2,200 lbs in the configuration with one 500 kg bomb on the centerline hardpoint, and one 250 kg bomb on each wing hardpoint.

However when fitted with the Schlos 1000 or 2000 in place of the ETC 501 rack the 190 could carry the 1,000 kg, 1,400 kg, 1,600 kg, and 1,800 kg bombs. The largest two of these required a special extended tail wheel to make the bomb clear the ground, however in the field the ground crew would instead modify the bomb casing by removing one of the bomb's fins. In the few instances were the massive 1,800 kg bomb was used the Fw 190 was carrying over 4,000 lbs of bomb+rack (Bomb alone weighed 3,968 lbs).

it may have been intended but until there is some document that shows the a9 coming out of the factory with that engine, it was just a dream. every piece of data readily available on the 190-a9 and the 801f says there were production problems which kept it from being delivered.
The motor wasn't the problem, it had been in production since December 1943 and was used on bombers. The problem was fitting it on the 190 since it meant redesigning the engine cowling and re-balancing the aircraft. This was done by January 1945 and 190A/F-9s with th 801F started arriving at Luftwaffe units in the East in February 1945. Like I mentioned earlier the 190F at the Smithsonian has this engine. The confusion comes from the fact that the engine was originally designated TH and later TS. So every 190A/F-9 you see mentioned with a TS motor is in reality an F. This was a very confusing time in Germany.
