Thread: Cracking Sparkplug porcelain

yes sir but really doesnt matter. just show a pic of the strap of the plug

peace

i actually think i figured out why the plugs were cracking. Just noticed that my coil to cap plug wire is a "solid core" plug wire. MSD states that you cannot use a solid core plug wire with their 6al ignition box, same thing with the 2step module. But i am not sure what drivability problems running a solid core wire would cause

MSD Ignition

Solid Core Wires: You cannot run Solid Core Spark Plug Wires with an MSD Ignition Control. Solid Core wires do not suppress any Electro Magnetic Interference (EMI) which will interfere with electronics or rev limiters on your vehicle. A suppression style or spiral wound spark plug wire MUST be used.

Yeah i actually just came across a thread on msd6al.com and a MSD tech posted this.

The solid core wires do not suppress noise and will effect the limiter, timing and normally cause a misfire. You have bee fortunate that you have not had any problems, if the car starts to break up, timing fluctuates etc., change the wires first. I would recommend using a suppression wire on the new combination.

That is exactly the problem i am having. my timing fluctuates so badly sometimes, you can feel the car holding back because the ignition timing is getting so retarded