Mon Feb 11, 2013 8:20 pm
#1145080
Aye lad .
Delta Juliet wrote:Starting is much improved as the electronic ignition gives a 1/2" spark which is independent of engine speed. At low speed the system changes the ignition to about 0 degrees advanced (compared to the fixed 20-25 degrees of a magneto). This prevents kickback.
Delta Juliet wrote:At speed, the ignition is advanced depending on the rpm and manifold pressure. At full power I never noticed much difference, but when leaned and pulled back in the cruise 20"MP/2100rpm there was a big difference in airspeed compared to std ignition. The system advances the spark up to 40 degrees which makes the engine much more efficient. The advantages are better starting, 10-15 kts extra cruise (135 vs 120kts) and the ability to use Iridium car plugs at £36 a set of 4.
Bill McCarthy wrote:Has the LEBURG system been resurected for the good old VW hatz ?
Impulse couplings do the same thing. Electronic spark is typically strong (as noted) and that would the (only) difference for starting if the engine type otherwise has impulse couplings.
I would like like to see a system where the electronic ignition timing has two presets, power and economy which you could change between depending on what you are doing.
Would this be possible?