kurfurst has the original engine docs on his site. i'm not sure if th game is using the 601a0 or 601a1 so i'll link both.
A0
A1
fairly certain the game is using the A1. i'm not 100% positive on the manifold (aTa) setting but iirc is should be 1.3 for 30 minute power and 1.42 for 1 minute WEP.