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4g63 Coil On Plug 201

This is a continuation from my earlier coil-on-plug how-to video. I was troubleshooting an ignition problem where I couldn't boost over 14 PSI without misfiring or backfiring despite having an ignition amplifier, and this is what worked to completely resolve my troubles. There's lots of information about what parts work well on a 4g63 (and their relevance) as well as lots of reports about people having ignition problems once they're installed. I noticed that there's not really any instruction available regarding ideal methods for trimming the longer Chrysler boot down to the size and shape for a 4g63 setup. Some of this could be due to the depth of various COP mounting plates, but this video is intended as an effort to help fill that void regardless of why. If the boots are not trimmed properly, then as combustion chamber pressure increases, the possibility of the spark arcing from the plug into the plug well is possible. This can happen on improperly insulated plugs, or as a result of an old worn boot. The solution if your coil resistance is good... is to run down to NAPA and buy yourself a set of new boots. They come with new springs. They just need to fully-sleeve the spark plug's ceramic insulator, and make good electrical contact internally. If air can get in and out, so can spark. FYI: When inspecting older worn-out boots, wherever spark leaks through leaves a white spot.