DCrosby

The CDI / (HKS - AEM) box you're ferring to is not the "Amp" it's mostly the trigger, and yes the more juice flows through the trigger the higher the amplification trhough the coils.... but from what I understand of ignition systems, the coils are actually what "Boosts" the voltage up to the levels needed to jump the gap of the plug.

The part of the trigger that mkes it "Better" is that a shorter / sharper rise and dropoff in voltage will cause a bigger arc, for a shorter period of time, as opposed to a weaker one longer... and since the sparc only needs to be there to ignite the fuel, the flame front does the rest, it's better to have a short hot event, than a longer colder event.

The ignition "window" at 7krpm is so narrow, this would make the fuel combust, while a colder longer. might not have enough time to create the proper amount of heat.

Remember you're energizing air, to the point where electodes flow through despite the resistance, and resistance causes heat. The more air you can "Eletrecute" the more resistance, the more heat.

pluto

the answer is really simple. Every components (electrical or mechanical) were meant to operate under certain condition for a certain amount of time (MTBF: Mean time between failure). You can actually calculate MTBF of any components using Mil-417?. The more complex the system, the lower the MTBF. Most of the automobile industry designed their components based on 4 sigma (if that?). So given the tolerances on every components, component failure can vary . Ignition system consists of signal output (ECU), connectors from ECU to harness, wire itself, interconnect harness to the coil, more wires (shield), connector to the coil, spark plug wires, spark and lastly, the ignitor. Out of the entire system, Based of what I remembered, connectors have the worst MTBF because of constant connect/disconnect and explosure to humidity. so chances of connector failing is the highest, next will be the coil because of the amount of heat exposed to them. So to make a long story short, if your engine gets pull in and out all the time or have a major oil/fluid leak around the connector area, chances are, connector is to blame. If you have a high mileage car, chances are, the coils were worn out.

matty

tks steve.

my car is very clean....low miles, no leaks, etc...
this problem only occurs when i run 15psi as oppose to 12 psi.

SleepR1

10.9 AFR