Hi guys,

Been reading a bit about wiring and electrical recently, and have decided I am going to try the grounding kit, since ive got a fairly hefty stereo too so it wont hurt anyway. Also, I heard in the magazine test they did of it, that they used a voltage stabilizer that also supposedly made a difference, anyway I got one real cheap so ill be adding that too.

anyway, back on topic, Ive can get an upgraded ignition coil cheap. Havent heard of anyone here doing this, anyone think this is worth it, due to the better spark??? the one I am looking at is the MSD blaster 3, I think it can work with stock systems. By the way, are the 2nd gens points or electronic ignition?? If its electronic it should work no problemo.

Also went on their website and saw this...

http://www.msdignition.com/ignition_4_6200.htm

supposed to give several sparks to ensure complete burn or soemthing, anyone heard ot tried of these, or think it would be worth it??

Im thinking of just getting the coil, and gapping the spark plugs to get a bigger stronger spark.

Experience with use, install or and opionions please share......

... and be dont flame me :badgrin:

Cheers,

Ollie

How much is this coil worth...? heard they are ok but really, you wont feel much gain.

But the extra spark will make it run smoother...

did have a MSD 6 but didn't feel much. bit better fuel economy, on my old civic.

All of the astron 2's are electronic ignition. This is how it works;

The ECU gets a crank angle signal from the crank angle sensor (also sometimes called a cam angle sensor if located on cam). The ECU then knows exactly where the motor is at all times, and when it needs to fire the coil.

So the Crank Angle Sensor (CAS) can't be upgraded, and doesn't need to be obviously.

The ECU then fires the coil by triggering the ECU ignition output. It does this by pulling 12v from the Igniters down to earth. The reason the ECU pulls to earth is so that the ECU doesn't have to distribute 12v, it just pulls stuff to earth to turn it on.

The igniter is just a transistor basically. For the ECU to directly drive the coil, it would need a huge amount of EMF protection and current sinking ability, which it doesn't have (another reason why ECU earths don't need upgrading but don’t get me started). So the ECU triggers the igniters, the igniters then triggers the coil to charge up, and then after the charge time (dwell time) the ECU turns off the igniters and a huge spark is created via transformer inductance and capacitance.

The ignition coil is just a transformer, and by inherent design they create capacitance which is used to create the spark for a motor.

So generally, the igniters and coil can be upgraded.

The coil can be upgraded to something with more windings, and therefore more output voltage. They then use more current, so stock igniters sometimes overheat and break down after continues high RPM (circuit racing or spirited driving). The igniters can then be upgraded to something with a larger heat sink or a physically larger transistor.


In honest truth, I doubt it would make any difference. Ignition is basically just that, once ignited even slightly, the combustion does its thing. Someone on performance forums put it the best... with TNT, it doesn't matter about the size of the wick, as long as it works.

Ignition is usually upgraded on high RPM motors, or high boost applications, because the combustion dynamic pressure is too high for a conventional spark to arc though, and you get misfiring. No 4G's rev high enough, and as far as I know you aren’t running any forced induction.

Hope this helps.