AUTOLITE AR73 racing spark plugs with a radio
#324337
05/21/09 06:37 AM
05/21/09 06:37 AM
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Anonymous
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anyone run Autolite AR racing spark plugs with Firecore spark plug wires and can listen to their car radio,
radio works fine with just ignition key in on position but when i fire up my A12 superbee all i get is static.
is it the spark plugs, the wires or both?
going to yank both off today but was wondering whats the culprit here?
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Re: AUTOLITE AR73 racing spark plugs with a radio
#324338
05/21/09 07:00 AM
05/21/09 07:00 AM
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Joined: Mar 2003
Posts: 15,493
the boonies
aarcuda
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I Live Here
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the boonies
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Quote:
anyone run Autolite AR racing spark plugs with Firecore spark plug wires and can listen to their car radio,
radio works fine with just ignition key in on position but when i fire up my A12 superbee all i get is static.
is it the spark plugs, the wires or both?
going to yank both off today but was wondering whats the culprit here?
if i remember, i'll try mine. i have the firecores and AR racing plugs with the mallory hyfire. i dont have a stock radio so we'll see if its the radio or the plugs. I do seem to recall having AM noise though but i dont mean to listen to AM so i cant say if my memory is correct
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Re: AUTOLITE AR73 racing spark plugs with a radio
[Re: mopar dave]
#324340
05/21/09 08:57 AM
05/21/09 08:57 AM
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Joined: Dec 2005
Posts: 1,495
Shelby mi.
JAKE68
pro stock
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pro stock
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Shelby mi.
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Chris it is the plugs.Jake
JAKES AUTOMOTIVE
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Re: AUTOLITE AR73 racing spark plugs with a radio
[Re: JAKE68]
#324341
05/21/09 08:12 PM
05/21/09 08:12 PM
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Quote:
Chris it is the plugs.Jake
GARY, Changed out the racing plugs to champion RJ11-y from my personal stash, i can now hear some sound but the static and whining is still there real bad and pitch gets higher when you rev the engine.
FIRECORES are off tomorrow, suppression wires are going on. this is a real bummer, nice wires for racing application only, not good for the show and go car who likes to listen to his AM radio while cruising.
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Re: AUTOLITE AR73 racing spark plugs with a radio
#324344
05/21/09 10:24 PM
05/21/09 10:24 PM
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Joined: Aug 2003
Posts: 43,882
Bend,OR USA
Cab_Burge
I Win
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I Win
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Posts: 43,882
Bend,OR USA
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Quote:
Quote:
Chris it is the plugs.Jake
GARY, Changed out the racing plugs to champion RJ11-y from my personal stash, i can now hear some sound but the static and whining is still there real bad and pitch gets higher when you rev the engine.
FIRECORES are off tomorrow, suppression wires are going on. this is a real bummer, nice wires for racing application only, not good for the show and go car who likes to listen to his AM radio while cruising.
I have a MSD 7 series box,with the Mallory coil for it, AR 3911 plugs with either MSD or Moroso spiral wound spark plug wires, no interference on the AM or FM bands on my old time Sony radio 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: AUTOLITE AR73 racing spark plugs with a radio
#324345
05/21/09 11:17 PM
05/21/09 11:17 PM
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Anonymous
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Quote:
Quote:
Chris it is the plugs.Jake
GARY, Changed out the racing plugs to champion RJ11-y from my personal stash, i can now hear some sound but the static and whining is still there real bad and pitch gets higher when you rev the engine.
FIRECORES are off tomorrow, suppression wires are going on. this is a real bummer, nice wires for racing application only, not good for the show and go car who likes to listen to his AM radio while cruising.
go to any radio shack and buy a noise suppresor for your AM radio. keep in mind, the person behind the counter might not be old enough to even know what AM radio is. it's been obsolete since the late 70's
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Re: AUTOLITE AR73 racing spark plugs with a radio
#324346
05/22/09 04:59 AM
05/22/09 04:59 AM
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Joined: Apr 2003
Posts: 1,634
anywhere@ anytime
actionange
top fuel
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top fuel
Joined: Apr 2003
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anywhere@ anytime
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Quote:
Quote:
Chris it is the plugs.Jake
GARY, Changed out the racing plugs to champion RJ11-y from my personal stash, i can now hear some sound but the static and whining is still there real bad and pitch gets higher when you rev the engine.
FIRECORES are off tomorrow, suppression wires are going on. this is a real bummer, nice wires for racing application only, not good for the show and go car who likes to listen to his AM radio while cruising.
What are YOU listening to on AM? Traffic reports, Rush Limbaugh? 
Give me the wires if you're not gonna use them... 
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Re: AUTOLITE AR73 racing spark plugs with a radio
[Re: wildcargo]
#324348
05/22/09 07:46 AM
05/22/09 07:46 AM
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Joined: Dec 2005
Posts: 1,495
Shelby mi.
JAKE68
pro stock
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pro stock
Joined: Dec 2005
Posts: 1,495
Shelby mi.
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Chris the reason I said it was the plugs was I looked at those firecore wires and they are a spiral wound suppresion wire. Maybe there is a problem with the radio?????? I like the radio shack idea. Cause the wires are good ones. Jake
Last edited by JAKE68; 05/22/09 08:12 AM.
JAKES AUTOMOTIVE
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Re: AUTOLITE AR73 racing spark plugs with a radio
[Re: JAKE68]
#324349
05/22/09 01:40 PM
05/22/09 01:40 PM
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Quote:
Chris the reason I said it was the plugs was I looked at those firecore wires and they are a spiral wound suppresion wire. Maybe there is a problem with the radio?????? I like the radio shack idea. Cause the wires are good ones. Jake
GARY,i swapped out just the firecore coil wire to the resto. wires and 85% of the noise is gone, going to swap out the rest of the wires in a little while.
too bad the firecores dont work, they fit nicely.
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Re: AUTOLITE AR73 racing spark plugs with a radio
[Re: 383man]
#324351
05/22/09 04:14 PM
05/22/09 04:14 PM
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Joined: Jan 2003
Posts: 3,078
Edmonton, Alberta, Canada
Dartman75
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Edmonton, Alberta, Canada
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It's usually the wires not the plugs. From the electrical side of things, it's technically the rate of change in current through the wire as it direclty rleates to teh collapse of the magnetic field in the coil. Very fast changes in current/voltage of the coil voltage lead to a very large number of frequencies cast off as unwanted noise. The faster the coil discharges, the higher the frequency and more harmonics will be broadcast. Wire that suppress the noise usually do 2 things. Firstly and most importantly, they have a higher resistance which causes the spark to last longer and dissipate the coil's energy over a longer period of time, lowering the EM you get. The other is to use materials that suppress EM waves from flying off and messing with your tunes. Some wire may also introduce impedance in the wire which helps to suppress the rapid changes in current in the wire, but sustain that nice hot spart once the current does get moving. So don't use low resistance "racing" wires unless you want the spark to be shorter livered but hotter and you want to have 0 radio and bitter neighbors still running rabit ear TV's. Most cars want a longer spark to ignite those lean cursing speed combustions anyways. Unless you have blowout problems, which can be cured in other ways anways. The plug has the same effect on EM emissions as the wire, but at an effective aerial length that is 1/10 the average plug wire length, guess why it makes less difference  Greg
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Re: AUTOLITE AR73 racing spark plugs with a radio
[Re: Dartman75]
#324352
05/22/09 04:24 PM
05/22/09 04:24 PM
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Quote:
It's usually the wires not the plugs. From the electrical side of things, it's technically the rate of change in current through the wire as it direclty rleates to teh collapse of the magnetic field in the coil. Very fast changes in current/voltage of the coil voltage lead to a very large number of frequencies cast off as unwanted noise. The faster the coil discharges, the higher the frequency and more harmonics will be broadcast. Wire that suppress the noise usually do 2 things. Firstly and most importantly, they have a higher resistance which causes the spark to last longer and dissipate the coil's energy over a longer period of time, lowering the EM you get. The other is to use materials that suppress EM waves from flying off and messing with your tunes. Some wire may also introduce impedance in the wire which helps to suppress the rapid changes in current in the wire, but sustain that nice hot spart once the current does get moving.
So don't use low resistance "racing" wires unless you want the spark to be shorter livered but hotter and you want to have 0 radio and bitter neighbors still running rabit ear TV's. Most cars want a longer spark to ignite those lean cursing speed combustions anyways. Unless you have blowout problems, which can be cured in other ways anways.
The plug has the same effect on EM emissions as the wire, but at an effective aerial length that is 1/10 the average plug wire length, guess why it makes less difference
Greg
thanks very much, the car was built as a pure stock and it runs very nicely. i am not racing it at this moment and want to cruise and enjoy it in stock original trim.
car will go 11.90's for sure but i love originality and i want the availability of being able to reach over and turn one the tunes even if i make a pass in the A12.
thats just me.
so it looks as though the rest of the wires are going to come off now and ill post results.
i guess Rick Gorski cant wait till this post fades away.
im shocked he really hasnt chimed in and talked more about the material used in making the firecore wires and the reasons why or why not the wires will give off radio interference.
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Re: AUTOLITE AR73 racing spark plugs with a radio
#324353
05/22/09 07:15 PM
05/22/09 07:15 PM
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Anonymous
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99% Of the noise is gone now due to the swap out to the resto wires,
i put in resistor spark plugs and supression restoration date coded wires aqnd car feels the same, crisp and tight revving and now looks 100% stock.
i wont race with these plug wires but for the car cruise or show at Carlisle they will stay on.
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Re: AUTOLITE AR73 racing spark plugs with a radio
#324354
05/23/09 12:02 AM
05/23/09 12:02 AM
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Joined: Jan 2003
Posts: 628
Inver Grove Heights, MN
69_6bbl_Runner
super street
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super street
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Posts: 628
Inver Grove Heights, MN
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Quote:
i guess Rick Gorski cant wait till this post fades away.
im shocked he really hasnt chimed in and talked more about the material used in making the firecore wires and the reasons why or why not the wires will give off radio interference.
You are easily shocked, maybe he missed the bulletin that the world revolves around you
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Re: AUTOLITE AR73 racing spark plugs with a radio
[Re: hemi-itis]
#324356
05/23/09 09:38 AM
05/23/09 09:38 AM
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Joined: Jul 2003
Posts: 12,132
Cleveland
sunroofgtx
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I Live Here
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Posts: 12,132
Cleveland
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Chris, glad swapping out the wires worked for you. AM radio is cool. It's what I listen to half the time.Sorry I missed the post, but I've been at the racetrack a lot these days, and we are moving the factory into a new building. Too busy to be online a lot , anymore. I'm sorry the 8mm stock-looking wires don't work for you, Chris. We do have the in a 250 ohm, but thats another story. Good luck with cruizing, it really is a great-looking car.
Join the quickest team in motorsports. Team FireCore. CustomWiresets.com
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