Plug wire resistance
Thread Starter
Racer
Joined: Jul 2006
Posts: 337
Likes: 10
Plug wire resistance
Are there any operational differences between 4 to 7K ohm per foot graphite / carbon impregnated wire and 1500 / 2K per foot sprial core stuff at a mostly stock 250 HP level?
I am asking because I am switching to straight boots at the plug....and already have the better spriral core wire......so I thought I would just get some boots and terminals.....could not find local, so got a less expensive performance set to just use boot / terms.....only to find out straight boots and terms were pre attached!!!!
Thanks
I am asking because I am switching to straight boots at the plug....and already have the better spriral core wire......so I thought I would just get some boots and terminals.....could not find local, so got a less expensive performance set to just use boot / terms.....only to find out straight boots and terms were pre attached!!!!
Thanks
Race Director
Joined: Dec 1999
Posts: 16,945
Likes: 9
The whole plug wire resistance is a marketing hype and a DC measurement, however a plug wire conducting sparks acts like a cut off AC and AC is carried over the surface area of individual wires (total surface area) -> magn. field!! DC is carried through the wire so cut through area matters. Do a search on this (it's late, don't feel like typing this whole thing down) there have been posts about this in te past. Do not believe the marketing BS. The lower resistance wires are not better, in fact they are cheaper to manufacture and sold off as hi po (high cost)!!!!!!!!!!
Thread Starter
Racer
Joined: Jul 2006
Posts: 337
Likes: 10
YES...mostly all marketing hype...some truths.....many far fetched claims. I have actually sat up all night reading all the blogs and company info from Nology to Accell.....and my company actually manufactures plug wire!!!....but our application is on race jetskis with two strokes...so my knowledge does not always apply in the four stroke GM HEI world.
I could carefully remove the boots and terms and apply to my sprial core wire, already in place and in service for the last 6 months.....but I don't want to waste the time if there is no real benfit. I am most concerned with smooth idle quality.
I could carefully remove the boots and terms and apply to my sprial core wire, already in place and in service for the last 6 months.....but I don't want to waste the time if there is no real benfit. I am most concerned with smooth idle quality.
Le Mans Master
Joined: Dec 2006
Posts: 8,837
Likes: 1,028
The whole plug wire resistance is a marketing hype and a DC measurement, however a plug wire conducting sparks acts like a cut off AC and AC is carried over the surface area of individual wires (total surface area) -> magn. field!! DC is carried through the wire so cut through area matters. Do a search on this (it's late, don't feel like typing this whole thing down) there have been posts about this in te past. Do not believe the marketing BS. The lower resistance wires are not better, in fact they are cheaper to manufacture and sold off as hi po (high cost)!!!!!!!!!!
