Rx8 Spark Plug To A 12a Rx7 ??
03-01-08, 10:01 PM
#1
Rx8 Spark Plug To A 12a Rx7 ??
Question I Been Reading In The Treads And I Understand Ngk Is Whats Up..
But I Need To Know If Rx8 Spark Plugs Will Work On My 12a Stock Engine,, My Cousin Hooked Me Up With This Spark Plugs Since He Was Working Their He Just Gave Them To Me,,
Will It Work, My Cousin That Has Been Working On Rotors About Ten Years Says Yea But Never Tried It., I Want To Know If It Works ..
I Have Them In Car I Havent Turn Car On Since Im Waiting For Gas Pump,,please Help,
But I Need To Know If Rx8 Spark Plugs Will Work On My 12a Stock Engine,, My Cousin Hooked Me Up With This Spark Plugs Since He Was Working Their He Just Gave Them To Me,,
Will It Work, My Cousin That Has Been Working On Rotors About Ten Years Says Yea But Never Tried It., I Want To Know If It Works ..
I Have Them In Car I Havent Turn Car On Since Im Waiting For Gas Pump,,please Help,
03-01-08, 11:48 PM
#3
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No...
Use only NGK or ND's specced for the engine or you can damage the rotors.
Hopefully they will come out without destroying your threads too. Sorry but you got some
really bad advice.
Use only NGK or ND's specced for the engine or you can damage the rotors.
Hopefully they will come out without destroying your threads too. Sorry but you got some
really bad advice.
Last edited by Vashner; 03-01-08 at 11:54 PM.
03-01-08, 11:59 PM
#5
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Even Autolites and Bosch can scrach the rotors. Or so I read here.
Remember to use the anti seize compound too on the threads of the NGK's you go buy tomorrow.
I use ND's but they are just clones of the NGK and don't go off the reservation with design changes.
Remember to use the anti seize compound too on the threads of the NGK's you go buy tomorrow.
I use ND's but they are just clones of the NGK and don't go off the reservation with design changes.
03-02-08, 12:00 AM
#6
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they will work in 13B but not in a 12a... i own rx8, first gen 12a and second gen 13b.
The bureq7 and 9 will work in 13B whether rx8 or 7, but for the smaller housings on 12a i dont think they hotter plugs will sit properly. Maybe the leading but not the trailing for sure.
The bureq7 and 9 will work in 13B whether rx8 or 7, but for the smaller housings on 12a i dont think they hotter plugs will sit properly. Maybe the leading but not the trailing for sure.
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03-02-08, 01:53 AM
#9
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Sparkplugs.com gives the critical dimensions of RX-8 same as RX-7: 14mm thread x 3/4" reach (in the peculiar mixed standard for plugs). the physical dimensions are the same.
Autolite 2626 are excellent plugs and I've used them in 12As and 13bs for years. They start easier and resist flooding better than traditional plugs because of the annular electrode which sorta gives one an infinite number of electrodes. Cheaper than NGKs, too, I used to be able to get them for $2, but not the last couple years
Modern plugs are always gapped properly at the factory and most are not even adjustable. So get the right size gap. For example, if you have an SA or a REPU with mechanical points you need a small 0.030 gap which requires a different plug from the RX-7.
Autolite 2626 are excellent plugs and I've used them in 12As and 13bs for years. They start easier and resist flooding better than traditional plugs because of the annular electrode which sorta gives one an infinite number of electrodes. Cheaper than NGKs, too, I used to be able to get them for $2, but not the last couple years
Modern plugs are always gapped properly at the factory and most are not even adjustable. So get the right size gap. For example, if you have an SA or a REPU with mechanical points you need a small 0.030 gap which requires a different plug from the RX-7.
03-02-08, 10:03 AM
#11
Thanks Guys ,, Well Their Are Ngk's ,they Fit Perfect But Im Just Concern
If They To Long, Model Is Ngk * N3y8-18-110 Theyr Look The Same As The
Ones I Took Out But Have A Have A Pin Like The Pictures Above. I Wont
Start My Car Till Im 100% Sure If Not Ill Just Put Old Ones Back, I Just
Had This And Figure They The Same ,since Is A 13b..and I Have Used 13b
Plugs On 12a But The New Design On Engine On The Rx8 Has Me A Little
Concern, Thanks
If They To Long, Model Is Ngk * N3y8-18-110 Theyr Look The Same As The
Ones I Took Out But Have A Have A Pin Like The Pictures Above. I Wont
Start My Car Till Im 100% Sure If Not Ill Just Put Old Ones Back, I Just
Had This And Figure They The Same ,since Is A 13b..and I Have Used 13b
Plugs On 12a But The New Design On Engine On The Rx8 Has Me A Little
Concern, Thanks
03-02-08, 01:19 PM
#13
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Off mazdaspeeds recommendations I'm running 3rd gen NGK plugs. The car is amazingly smooth and starts up faster than ever. (roughly 1-2 seconds of cranking when cold, just have to blip the starter when warm) To be fair, the old ones were the most worn out plugs I think I've ever seen.
I personally avoid autocrap plugs like the plague. Just had bad experiences with them, have to replaced them atleast twice as often as NGKs and the overall quality I feel seriously lacks. Even threading them into a head it feels like the threads are cut poorly. JMHO
I personally avoid autocrap plugs like the plague. Just had bad experiences with them, have to replaced them atleast twice as often as NGKs and the overall quality I feel seriously lacks. Even threading them into a head it feels like the threads are cut poorly. JMHO
03-02-08, 04:28 PM
#14
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why don't you just turn the car over and see if it works. you have them in already just try it. the only thing it might do is the leading could scratch the apex seal. but there are guys running the bur6eq in the leading and no scratched rotors. heck i use them in mine would really like to see if the will run the 12a better or worse then the stock plugs.
03-02-08, 08:11 PM
#15
I will try it once i get pump ,im hoping i get one tomorrow , well i was looking at size from old ones and new ones they are very similiar in size but one thing is for sure im not going to try something and mest up and engine especially a rebuilt one, im taking them off and measuring the old and new again and make sure they all good before i try anything, thanks again, ill keep everyone posted and hopefully it starts right up..it started right up with old ones all burned up so im sure it will work with this ones
03-07-08, 01:17 AM
#18
Ignore the newbs, they will work fine... The only difference is that they are a hotter plug, so if you're running a turbo the hoter tip might increase your chances of detonaione. They're pretty similar to the surface fire FC plugs, so it takes a little more spark energy to jump the gap. I hope all your ignition is in great working order, because if it's not you might get quite the missfire.
03-07-08, 11:04 AM
#21
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03-07-08, 10:18 PM
#22
well I got them for free thats why,, I just maid room in my garage to fit my rx3 and the GSL so im happy ..gas tank is going to be shipped from my cousin in chicago down here,,I get for free once again and i only paying shipping ,,almost forty i think ,,well thats what he said, he had it stored in shed,,he has a nice rx2 with a 5 letra engine,,JDM.. he has not run it yet since is still snowing up their, that must suck..well in know feeling i live all my life their, it SUCKS..
03-07-08, 10:21 PM
#23
well tunning in car is stock and leaving pretty much evrything stock,, is automatic
but making it stick once i get it painted and dropped, then ill get everything
together then ill drop it in, I wish my rx3 was this simple. but with hard work
comes happiness,
but making it stick once i get it painted and dropped, then ill get everything
together then ill drop it in, I wish my rx3 was this simple. but with hard work
comes happiness,
03-12-08, 09:15 PM
#24
It Worked The Rx8 Plugs On 12a
Ignore the newbs, they will work fine... The only difference is that they are a hotter plug, so if you're running a turbo the hoter tip might increase your chances of detonaione. They're pretty similar to the surface fire FC plugs, so it takes a little more spark energy to jump the gap. I hope all your ignition is in great working order, because if it's not you might get quite the missfire.
FOR ABOUT 15 MINUTES AND IT SOUNDED GREAT ,.TURNED IT OFF THEN ON AND IT
TURNED ON SO EASLY ..WOW EVEN FASTER THAN THE ONES IT HAD, ANYWAYS,
THANKS
