Maybe i have been very lucky with what my engine needs in terms of spark power, I have been using the Bosch blue coil together with an MSD 6AL in my turbo engine.
Boost pressures up to 30psi (2bar) have been tried and the spark plug gap has been around 0.7-0.9mm. The shift rpm is 7500-7800.
I then changed to a bling bling MSD super ultra must have coil hoping for some improvement..because this wasn´t was the blue coil was built for.... What happend? I could not feel any difference at all! not better not worse! About 100$ in the drain.....but it looks very Racy!
Hi Roland, this is exactly my point !! Is there any real difference in terms of performance / efficiency
I know if you read all the blurb, the manufacturers will have you believe you must have this coil or that coil or this digital ignition or that one.........................but do you really in the real world away from the lab ??
My motor is 2332cc,on IDA's with 11:1 CR and is street legal and street driven from town to town etc.