Originally Posted by bluecar5556
Higher CR=higher voltage needed to overcome compression
Lower CR=lower voltage needed to overcome compression
Exactly my point,
Higher CR=higher output
Lower CR=lower output
The dwell time, the coil must saturate longer to overcome a larger gap, therefore the coil WILL be higher output. The ford coil spec 50kv is @ .044" electrode gap, not @.054" that some people run.