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Re: Are Champion RJ12YC's junk ?
[Re: 72d100]
#71809
06/12/08 01:00 AM
06/12/08 01:00 AM
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Joined: Apr 2003
Posts: 959
Cincinnati,Ohio
jcastle1
OP
super stock
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OP
super stock
Joined: Apr 2003
Posts: 959
Cincinnati,Ohio
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There are a sea of spark plugs out there and I don't know the differences,I just want a good plug to run in my combo.There are platinum tipped,double platinum tipped,v-power,irridium,non-resistor,resistor,and Jegs carries the plugs without a j-strap,whatever that means!
Someone please enlighten me!Thanks,John
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Re: Are Champion RJ12YC's junk ?
[Re: 451Mopar]
#71812
06/12/08 06:24 AM
06/12/08 06:24 AM
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Joined: Jan 2003
Posts: 21,065
Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,065
Niles , Ohio
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Champions in the new Mopars and Autolites in the old.Ive never seen a Bosch plug run good in anything yet.Ive changed thousands at work because they are crap and cars run bad with them.If you got a car to run good with them go buy a lottery ticket.Rocky
Chrysler Firepower
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Re: Are Champion RJ12YC's junk ?
[Re: therocks]
#71813
06/12/08 06:41 AM
06/12/08 06:41 AM
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Joined: Mar 2006
Posts: 1,611
Pataskala, Ohio
GTX70sixpack
top fuel
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top fuel
Joined: Mar 2006
Posts: 1,611
Pataskala, Ohio
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Autolite and NGK, the platnums work great
65 Belvedere II Station Wagon
69 Coronet R/T convertible
70 GTX
70'cuda
99 Dodge Diesel dually 4X4
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Re: Are Champion RJ12YC's junk ?
[Re: jcastle1]
#71814
06/12/08 06:46 AM
06/12/08 06:46 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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This may not be any help but I have found the Champions to work well in stock small blocks and Autolites to work well in stock big blocks. Being a non-stock six-pack may require something different. 
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Re: Are Champion RJ12YC's junk ?
[Re: BigTerry]
#71817
06/12/08 08:26 AM
06/12/08 08:26 AM
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Joined: Apr 2007
Posts: 1,261
ILL
mark7171
pro stock
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pro stock
Joined: Apr 2007
Posts: 1,261
ILL
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i use the rj12yc's in the 440, it runs fine. my 5/8" 440 plug is the bosch HR8BPX . i remove the tapper on a lathe.
the autolite 9323's, in the 318 with great results and a 5/8" plug.
Last edited by mark7171; 06/12/08 08:29 AM.
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Re: Are Champion RJ12YC's junk ?
[Re: mopowergtx]
#71818
06/12/08 08:30 AM
06/12/08 08:30 AM
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Joined: Apr 2007
Posts: 1,261
ILL
mark7171
pro stock
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pro stock
Joined: Apr 2007
Posts: 1,261
ILL
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champion has not made j11y's, superseeded by RJ12YC
all have resistors now.
Last edited by mark7171; 06/12/08 08:41 AM.
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Re: Are Champion RJ12YC's junk ?
[Re: mark7171]
#71820
06/12/08 08:41 AM
06/12/08 08:41 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
champion has not made j11y's, superseeded by RJ12YC
all have resistors now.
um.. wrong. you can still get non-resistor champions all-day-long.
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Re: Are Champion RJ12YC's junk ?
#71821
06/12/08 08:47 AM
06/12/08 08:47 AM
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Joined: Apr 2007
Posts: 1,261
ILL
mark7171
pro stock
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pro stock
Joined: Apr 2007
Posts: 1,261
ILL
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Re: Are Champion RJ12YC's junk ?
[Re: mark7171]
#71822
06/12/08 08:50 AM
06/12/08 08:50 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Re: Are Champion RJ12YC's junk ?
[Re: mopowergtx]
#71824
06/12/08 08:56 AM
06/12/08 08:56 AM
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Joined: Jan 2003
Posts: 74,974
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,974
U.S.S.A.
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Quote:
Yep Champions are junk, thats why they were the OE plug when these cars were new.  I think your problem is running a resistor plug in that motor in the first place. Find a non-resistor plug in the heat range you want and try that. I run old NOS J11Y Champions and have never had a problem. But you pick any manufacture you want and find out for yourself which one you like because anytime somebody asks about spark plugs on here you get a different answer. Its about like asking which beer is the best. 
the champions that were installed in the 60's/70's are a much better plug than the new champions , never had good luck running that rj12 in anything either .
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Re: Are Champion RJ12YC's junk ?
[Re: JohnRR]
#71825
06/12/08 09:04 AM
06/12/08 09:04 AM
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Joined: Jun 2006
Posts: 3,075
Eastern Ohio
mopowergtx
master
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master
Joined: Jun 2006
Posts: 3,075
Eastern Ohio
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Quote:
Quote:
Yep Champions are junk, thats why they were the OE plug when these cars were new. I think your problem is running a resistor plug in that motor in the first place. Find a non-resistor plug in the heat range you want and try that. I run old NOS J11Y Champions and have never had a problem. But you pick any manufacture you want and find out for yourself which one you like because anytime somebody asks about spark plugs on here you get a different answer. Its about like asking which beer is the best.
the champions that were installed in the 60's/70's are a much better plug than the new champions , never had good luck running that rj12 in anything either .
Probably right John, but I still got 4 sets of the vintage NOS J11Y's left. 
But I still have never seen anybody have any real luck running a resistor plug on a beefed up mill running alot squeeze and a hot ignition. Seems like whatever brand they run the stupid resistors burn out of them with quick.
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