On Mon, Apr 27, 2015 at 6:43 AM, Chris Prata via KRnet <krnet at list.krnet.org> wrote: > I wondered about that too. A redrive has other benefits as well of a larger, > slower turning propeller. First, much stronger takeoff acceleration and also > climb. Quieter too. > Hopefully some good replies and examples will be forthcoming... >
Hi, current available redrives for the vw seem to be heavy and/or unreliable. most would find the engineering cost to optimise redrives to be prohibitively expensive. this is primarily due to torsional vibration issues. the flat 4 flat crank engine has the most horrendous torque pulses imaginable. it takes a heavy flywheel to tame them and that turns turns off most builders.
