Looking for a hosting server now. Packs completed and ready for upload are as follows.
Rolls Royce Merlin
Rolls Royce Griffon
Daimler-Benz 600 Series
BMW 801
Pratt & Whitney R-2800
Each pack includes Engx, Engi, Engstartx, Engstarti, Engoffx, and Engoffi. Engx2 and Engi2 are included as well, which are transposed to 5 semitones over, so that the engine sound is displayed properly in-game (for some reason, AH's sound engine lowers Eng sounds by five semitones, so they sound a lot lower & slower than they're supposed to). Base Eng, Engstart, and Engoff are all internal sounds; the base Eng sound is the transposed, corrected sound file.
I included both internal and external sounds in the hope that HTC will update the game's sound engine so both can be used; before that happens, you have a choice between hearing what the aircraft sound like right in the cockpit, or what they sound like outside the cockpit. Internal sounds for multi-engine aircraft are mixed according to the engines being mounted on the wings, so it's quite a bit different than what you hear in the cockpit from a front-mounted fuselage engine.
You won't get any closer to the real thing in Aces High, at least until the sound engine is updated.