Thanks for info regarding the book. Unfortunately I have now possibility to buy it I am bot very fond of Chrysler airo engines but if it's possible I ask to share the info how was Chrysler IV ballanced, what was ignition order what was angle between cams of the camshaft. It would be nice to look at some drawings of it too.
The Chrysler XIV-2220's crankshaft was made up of two halves that bolted together at the center reduction gear. Each half shaft had two integral counterweights at each end cheek. In this image you can see the extreme front and rear counterweights.
In this image you can see the middle two counterweights near the reduction gear.
Final firing order was 1R, 4L, 5R, 2L, 7R, 6L, 3R, 1L, 8R, 5L 4R, 7L, 2R, 3L, 6R, 8L; cylinder 1 is the furthest from the propeller for each bank. (I originally said cylinder 1 was closest to the prop, which it originally was, but a revised cylinder numbering was used making cylinder 1 furthest from the prop.)
Intake valves opened at 46 degrees BTC (before top center) and closed at 70 degrees ABC (after bottom center). Exhaust valves opened at 70 degrees BBC (before bottom center) and closed at 46 degrees ATC (after top center).
Below are two patents that include drawings for the engine. The first is the patent for the basic engine (pdf).
www.google.com/patents/US2468976.pdf
And the second is a patent for a proposed contra-rotating propeller drive that shows the gearing layout (pdf).
www.google.com/patents/US2498767.pdf