Increase spark plug gap with msd coils?

[techieman33]

I just got my msd coil packs link
can I increase the plug gap? Will it help if it's increased? Also I've got new plug wires too, any suggestions on routing them?

 

[Turdle]

A wider spark gap is usually only necessary with added compression or boost-when ignition problems occur
You might try opening them up to about .060" --if you have idle issues then go back to .052"
I have mine gapped to .055"

keep in mind-a wider gap will wear plugs quickly--

 

[jah81592]

I completely agree with Jon on this one. Keep stock or near stock gaps. The hotter spark will take care of the rest.

 

[Chrisbequick]

A wider spark gap is usually only necessary with added compression or boost-when ignition problems occur

Absolutely 100% untrue and incorrect misinformation. With forced induction and high compression you CLOSE the gap to keep the spark from blowing out. Opening up the gap would only exacerbate existing ignition problems. With aftermarket coils on any vehicle it's usually safe to open them up another five thousandths.

-Chris

 

[Jakee]

Okay - so you open up the gaps thinking it's going to give more spark, and in return, you get a hotter spark. Okay, now you go to get tuned and you can't run as much timing as you could with the gaps lower (colder spark).

Do you guys agree with this? I guess I'm agreeing with JT and JAH. Opening up the gap really doesn't help too much; atleast on my motor it didn't.

And about blowing the spark blowing out with a force fead engine. Is this reason, or is it because you'll detonate like crazy with the hotter spark?

 

[BrooklynBay]

Why would a wide gap wear the plug out faster if it has the same amount of current, and voltage as a plug with a close gap?

 

[RubySlow]

wouldnt a wider gap have a weaker spark under normal compression because the spark has to travel farther?

 

[BrooklynBay]

The company recommends a wider gap since their product produces a stronger spark.

 

[Chrisbequick]

wouldnt a wider gap have a weaker spark under normal compression because the spark has to travel farther?

No. As long as there is enough voltage to jump the gap you get a bigger spark from the increased gap. This is half the benefit of a hotter coil. It isn't technically "hotter", but it does have more voltage, creating a larger spark that also has the ability to jump a larger gap.

Jakee- Think about what you're saying. Why would the motor detonate with a hotter spark? Detonation is the air/fuel mixture preigniting before the plug fires. A hotter spark has no effect on detonation since the plug hasn't even fired by the time detonation has occured.

-Chris