for those of you with the screamin demon coilpack, did you use the recommended .065" spark plug gap? because that seems fricken huge when the stock gap is like .035" or something..

i don't have the screamin demon, but the stock NA gap should be ~.050

Stock gap is .050", gap when running the screamin demon is .065" as stated by the info sheet that comes with it.

what about if you run that with a turbo?

If you run it with a turbo I'd say gap it around .045", but if you want an exact amount I would call Howell.

The reason your suppose to gap it more is obtain the benefit of a higher powered coil. More voltage = stronger spark = bigger flame kernel (more gas initially ignited) if you gap the plug further (which your now able to do w/ more voltage, since the plug won't run as hot).

Originally posted by WickedESi
If you run it with a turbo I'd say gap it around .045", but if you want an exact amount I would call Howell. The reason your suppose to gap it more is obtain the benefit of a higher powered coil. More voltage = stronger spark = bigger flame kernel (more gas initially ignited) if you gap the plug further (which your now able to do w/ more voltage, since the plug won't run as hot).

I run the gap on our cars at .035. I know what Screamin Demon says, and I have customers that run the at .065 without any problems.

im runnin .055 with no probs

joel, have you installed the coil yet? i've left your wanted list at 3 local junkyards. noone seems to have what ya need. you should hit anthony up!

Haven't found that harness yet. I'm going to call the guy AF-X recommended to me tomorrow.