Aussieveedubbers · Tech Talk

Coils and resistance

https://forums.aussieveedubbers.com/threads/66056/coils-and-resistance

Bizarre ·

Does the primary resistance of a coil change??

Been running an oil filled coil for an electronic ignition with a propper "electronic ignition high output coil"
Says so on the coil 🤪

Anyways AC.net says hi output coils should be 1.4Ω and that is what i was getting.......... cold.

When I went for a decent drive the coil was getting hot. Like hot. Not just warm??

how hot should it get??

The resistance changed when it was hot as well. Got more.

I have had it in for a couple months but never really felt the coil before.
Noticed my economy has been off lately as well.
Been playing with the idle jet size lately ( just mucking round to see what a slight increase would do ) and i thought it was that.

Anyway - changed coil to a transformer type. Same brand as the distributor. Scorcher.

More just wondering peoples opinion as to wether the coil should change resistance or not???

blutopless2 ·

all conductors change resistance with temperature. so i would expect your coil to change when you have run it for a few minutes compared to when it is cold.