Re: Spark plug life
[Re: SportF]
#2686950
08/12/19 05:05 PM
08/12/19 05:05 PM
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Joined: Feb 2003
Posts: 1,107 Massillon, Ohio
cudatom
super stock
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super stock
Joined: Feb 2003
Posts: 1,107
Massillon, Ohio
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My NGK's were installed in the fall of 2015. I have maybe 100 street miles and about 150-200 passes. The car starts fine, idles clean and my et's don't fluctuate. When I detect a slight miss at idle or the car seems to load up at start up is when I change mine.
Ok
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Re: Spark plug life
[Re: tboomer]
#2686952
08/12/19 05:13 PM
08/12/19 05:13 PM
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Joined: Jan 2008
Posts: 1,213 Minn
SportF
OP
pro stock
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OP
pro stock
Joined: Jan 2008
Posts: 1,213
Minn
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Tom...How old and what kind of plug wires are you using? Good point. Accel super stock. I'll wring them out to see what kind of ohms I have. I don't remember how old. hummm
Last edited by SportF; 08/12/19 05:17 PM.
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Re: Spark plug life
[Re: SportF]
#2686962
08/12/19 05:41 PM
08/12/19 05:41 PM
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Joined: Feb 2005
Posts: 20,203 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,203
PA.
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4th race season for my ar3911’s and my ultra40 wires. Might put a new set over the winter if I rebuild the engine
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: Spark plug life
[Re: SportF]
#2686964
08/12/19 05:46 PM
08/12/19 05:46 PM
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Joined: Aug 2003
Posts: 43,309 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,309
Bend,OR USA
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What ignition and plug gap? My thoughts are if it ain't broken, don't fix it I use to change plugs at the track after every race, I would leave the old ones in it to warm the car up in the pits and then put the new ones in I had cans of spark plugs that had from 10 to 16 runs on them Once I switched to the MSD race gold ignition boxes and their matching coil I didn't need to do that anymore
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Spark plug life
[Re: dvw]
#2686998
08/12/19 07:04 PM
08/12/19 07:04 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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Depends on the plug and how it was designed. I'd much rather use an easy to fire, much fewer run plug than use something that is designed to go 50 or 100k miles. Plugs are cheap.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: Spark plug life
[Re: madscientist]
#2687002
08/12/19 07:08 PM
08/12/19 07:08 PM
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Joined: Feb 2005
Posts: 20,203 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,203
PA.
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An old Mopar mechanic 40 years ago told me after I had issues with Champion plugs to throw them in the trash, buy some Autolite plugs, gap them at .028-.030, put them in and go race. Still doing it, still working good.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: Spark plug life
[Re: nss guy]
#2687056
08/12/19 09:09 PM
08/12/19 09:09 PM
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Joined: Jan 2006
Posts: 43 Otsego, mi. by Martin 131 stri...
JT612GTX
member
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member
Joined: Jan 2006
Posts: 43
Otsego, mi. by Martin 131 stri...
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Anybody out there using the E - 3 plugs? the pro guys claim they use them, probably just for advertising purposes. Thought about trying them but are they worth the price? ive had good luck using NGK race plugs and autolite.....
86 Daytona - 612/ glide - 2400lbs - 8.60 alot more left 71 S/G Challenger - 469/glide - 2800lbs - 9.20s and tuning 70 Challenger - mild 440/727 - 3475lbs - 10.96 best 70 GTX - future quick 16? more $$$$$$
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Re: Spark plug life
[Re: JT612GTX]
#2687152
08/13/19 08:26 AM
08/13/19 08:26 AM
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Joined: Jan 2003
Posts: 13,402 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,402
Marion, South Carolina [><]
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I used to run them a long time in my cuda...at least a year or more. No reason to change them all the time. I use NGK plugs and MSD 6AL boxes on all my cars. Plug wires vary, never had a set that didn't run good, some just fit much better than others.
The E3 plugs are a joke...along w/ every other "revolutionary" plug design. There's so much snake oil in the ignition products market it's ridiculous...plugs AND wires. There a lot of gimmick parts out there, but the ignition system market seems to be saturated with them. Maybe I shouldn't say "gimmick", but a lot that work fine, just never live up to their hype.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Spark plug life
[Re: an8sec70cuda]
#2687162
08/13/19 08:52 AM
08/13/19 08:52 AM
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Joined: Jan 2003
Posts: 8,037 Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,037
Tulsa OK
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I had 4 Drag weeks on my AR3911s, when I put my new motor in I forgot to buy plugs so I took the ones from my 360 and moved them to the 416. So four drag weeks with two motors haha. They still looked good but started to show a little wear, and I just freshened up the top end so I changed them out.
68 Barracuda Formula S 340
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Re: Spark plug life
[Re: Cab_Burge]
#2687265
08/13/19 01:50 PM
08/13/19 01:50 PM
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Joined: Aug 2003
Posts: 4,699 On the parachute mount
n20mstr
master
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master
Joined: Aug 2003
Posts: 4,699
On the parachute mount
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How can you call it a "race engine" and leave plugs in for so long?? LOL
Plugs tell you all about whats going on in there...
Run some nitrous , and you will go through a lot of plugs...LOL
....BAD A$$ STREET CAR.....
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Re: Spark plug life
[Re: n20mstr]
#2687268
08/13/19 01:56 PM
08/13/19 01:56 PM
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Joined: Jan 2005
Posts: 1,776 Keymar, MD
DusterKid
top fuel
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top fuel
Joined: Jan 2005
Posts: 1,776
Keymar, MD
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I usually change the plugs whenever I freshen the motor up after 400ish passes. I run autolites in my cars.
Last edited by DusterKid; 08/13/19 01:57 PM.
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Re: Spark plug life
[Re: n20mstr]
#2687276
08/13/19 02:07 PM
08/13/19 02:07 PM
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Joined: Aug 2003
Posts: 43,309 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,309
Bend,OR USA
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Last edited by Cab_Burge; 08/13/19 02:10 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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