elias,
My recovery coil has about 3000 turns or more with gauge 24 wire and some gauge 21 wire. I had not enough gauge 24 wire so I continued to wind the coil with a different wire size that I had. The resistance of the coil was 31 Ohms. The more turns, the higher the voltage generated and also the less speed is needed to get to the point where the high voltage spikes appear. The rotor speed is important, because if you use a relay for pulsing you should know that it can only operate at 10-14Hz or so. If the rotor speed is too fast, the relay wont have enough time to switch, if the speed is too slow, there will be less voltage generated. The spikes wont appear if you don't pulse-discharge the coil. So you may consider some different switching method. Also I did not use a capacitor across the bridge rectifier althought that did not create any noticable drag. As far as I know, Rick also did not use any capacitors nor did John Koorn who also succesfully replicated the self runner. I did not get the setup to self run, but I did got the high voltage and that is the first step. After all I abandoned the selfrunner replication process, because I found that pulsing a battery this way damages it and the battery will eventually fail. It is better and easier to pulse the high voltage to another seperated battery, this way you do not need to get the timing exactly right.