How does dwell timing work with logic level spark outputs?
Posted: Sun Jan 07, 2018 6:58 pm
Hi,
I’m in the process of doing an engine conversion, haven’t yet decided on a ECU but have decided the coils I will be using. They are high current coils with no built in drivers (2 wire).
What i’m finding difficult to understand is how dwell timing is controlled when using an external driver like a Bosch 211 or multiple BIP373s. From what I understand, the logic level signal from the ECU is at 1 (+5v) when the coil is charging and switches to 0 (0v) for the coil to fire, events which spaced by the duration of the ignition timing. Am I correct?
What i’m Struggling to understand is where is the capacity in this logic level signal to include information about the dwell timing aswell as ignition timing? I’m rather confused. If anyone can help that would be greatly appreciated.
Thanks in advance.
I’m in the process of doing an engine conversion, haven’t yet decided on a ECU but have decided the coils I will be using. They are high current coils with no built in drivers (2 wire).
What i’m finding difficult to understand is how dwell timing is controlled when using an external driver like a Bosch 211 or multiple BIP373s. From what I understand, the logic level signal from the ECU is at 1 (+5v) when the coil is charging and switches to 0 (0v) for the coil to fire, events which spaced by the duration of the ignition timing. Am I correct?
What i’m Struggling to understand is where is the capacity in this logic level signal to include information about the dwell timing aswell as ignition timing? I’m rather confused. If anyone can help that would be greatly appreciated.
Thanks in advance.