Originally Posted by
content22207_2
On a 6 cylinder scale, my analog meter read Bosch ignition ECU at 44 degrees at idle, which roughly corresponds with your digital reading (67% of 62 = 41.5).
However, my meter read slightly *INCREASED* dwell at 3,000 RPM, not decreased (46 degrees). Still 2 degrees total change, just in the other direction.
That said, I do agree the Bosch module has no significant dwell change to speak of. In that respect it offers no real advantage over breaker points.
If I send you an Autozone Duraspark ECU, would you be willing to test it as well? On a 6 cylinder scale, my meter read 50 degrees at idle, dropping to 44 degrees at 3,000 RPM.
You and I both read 3-4% dwell change on the Bosch ECU (albeit in different directions). I read 13% dwell change on an aftermarket Duraspark ECU -- it would be nice to double check that.
Bill Robertson
#5939