Coil dwell time

[pepifebles]

Hi guys,

Can somebody explain how work coil dwell time? My stock system its distributor and leads. Does this affect to performance? My actual set in my 3sgte rev 3 its 3.10 to 14v. What will happend if increase or decrease it?

[samvel]

Too much dwell will heat coil, too less may lead to not enough spark energy.
More engine load - more spark energy (dwell) required.
Higher batteryV = less dwell, Smaller batteryV = more dwell.

So in general, use as less as possible so, that engine works without missfires.

[pepifebles]

Ok. This affect to performance?

[samvel]

You will not gain any performance with more spark energy that enough for mixture to ignite.
But You can damage, overheat, shorten the life of coil.

[pepifebles]

ok, Thanks for your help.