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-   -   Third gen plugs... Can it be done? (https://www.rx7club.com/1st-generation-specific-1979-1985-18/third-gen-plugs-can-done-62761/)

JIMMY54 03-17-02 08:16 PM

Third gen plugs... Can it be done?
 
I run 2nd gen plugs and I was just wondering if 3rd gen work also? I'm not looking for any gains but I always wondered?

Suparslinc 03-17-02 08:18 PM

2nd and 3rd gen plugs are the same. You should run trailing (the 9's) on all four, thats what I'm using right now. I'm switching back to the original next time though, just to see if it makes any difference

JIMMY54 03-17-02 08:24 PM

Trailing on all four.... I'll try that next time. Thanks bro!

Are all second gen plugs the same, meaning N/A vs T2? I never bothered to ask b4?

Mine were from an N/A, Rx7 was scapped an i got the new plugs b4 it went.

V8kilr 03-17-02 08:36 PM

anyone think 2nd gen plugs would help the performance of a 12a with a direct fire ignition setup?

85RX7GS 03-18-02 07:31 AM

What brand are you considering using of the 2nd gen plugs? Stock or other?

SilverRocket 03-18-02 07:34 AM

As far as I know NGK is the only brand that makes em... I run the trailing platinums (stock on FD). I don't know if they really give you any power or anything, but they're one step colder so should be more detonation resistant. As well, the platinums apparently last a lot longer.

JIMMY54 03-18-02 08:55 AM

silver where they expensive?

SilverRocket 03-18-02 09:02 AM

Surprisingly not that expensive, I don't remember exactly but I don't think they were that much more than the usual 8EQs. The hard part is finding a Mazda dealer that'll be willing to sell you 4 trailing plugs, because they usually stock them in sets for the FC/FD guys. I had to call 3 different dealers before I found one that would do it. Mazda dealers are total clowns, I couldn't believe they were actually refusing to sell me sparkplugs lol.

Suparslinc 03-18-02 12:25 PM

The 9s don't really give any more power, just last longer. Of course I just picked up a set of platinum 8's and I don't think I've ever been able to find the platinums before now, so I guess these should last longer too. Maybe I'll go 4 or 5 oil changes instead of 3 this time.

JoseReyes 03-18-02 02:30 PM

I've been using the second gen platinum tip from ngk and my car runs much better and they last twice as long if not more than the stock ones. I am runing them as part of a direct fire setup with a Jacobs Rotary Pack and a Rev-Tech motorcycle performance coil and my car runs great...



Originally posted by V8kilr
anyone think 2nd gen plugs would help the performance of a 12a with a direct fire ignition setup?

nimrodTT 03-18-02 04:02 PM

Jose - have you tried any other motorcycle coils, those Rev-Techs are pricey!

JoseReyes 03-18-02 05:29 PM

you can try any of the coils that are in this link. Just make sure they are for electronic ignitions and not for points... I just chose that one for the high output 40k plus...

http://www.legendmcs.com/Electrical-Ignition/coils.html



Originally posted by nimrodTT
Jose - have you tried any other motorcycle coils, those Rev-Techs are pricey!

V8kilr 03-18-02 06:10 PM


Originally posted by 85RX7GS
What brand are you considering using of the 2nd gen plugs? Stock or other?
what ever works

V8kilr 03-18-02 06:30 PM


Originally posted by SilverRocket
As far as I know NGK is the only brand that makes em... I run the trailing platinums (stock on FD). I don't know if they really give you any power or anything, but they're one step colder so should be more detonation resistant. As well, the platinums apparently last a lot longer.
why run all trailing?

SilverRocket 03-18-02 07:11 PM


why run all trailing?
I was looking for colder plugs, the leadings are 7s as I recall. Also, I looked into it and that is what everyone recommended.

V8kilr 03-18-02 07:48 PM

i know is what everyone recomends,i just wanted to know why?
besides them being colder,

V8kilr 03-18-02 07:49 PM

you can get colder plugs for leading also,
even in platinum,
bling bling yo

SilverRocket 03-18-02 10:27 PM

That's what I said. Dude, the number on the spark plugs is the heat range spec. 9 is colder than stock, 7 is a hotter plug and that's why I didn't want to run it. If the 9 doesn't foul, I don't see why you would want to run the 7.

RotorMotorDriver 03-19-02 11:43 AM

Someone wanna explain the sparkplug numbers to me?? I assume that one part might be the thread refference, another the length of the plug, and also the heat range?? Am I even close?? :confused: Also, why run the 2nd (or even 3rd) gen plugs? Cant you buy colder plugs for the 1st gen? I know Ive seen people selling differnt plugs for different driving applications...My car hasnt had a running engine the whole time I've had it (only about a week) so Ive never had to mess with plugs. Ive never changed the plugs in the other two because they seem to run fine the way the are...Ill get to all of them with new plugs after I get a job though. Any suggestions on brand? Im kinda partial to NGK, always had good things with them in my dirtbikes and what-not.

~T.J.

RotorMotorDriver 03-19-02 07:50 PM

Anyone? :confused:

smnc 03-24-02 04:26 PM


Someone wanna explain the sparkplug numbers to me??
Ask and ye shall recieve....

You'll need Adobe Acrobat Reader to view it...
Click HERE to get it.
http://www3.sympatico.ca/smnc/partnumberkey.pdf

dvcn 03-25-02 09:14 AM

Good info:http://www.ngksparkplugs.com/techinf...s/overview.asp

For a street driven car, BR9EQ-14's are hard to beat.

JoseReyes 03-25-02 05:37 PM

NGK, NIPODENSO, HKS, and a few more companies...

http://www.optauto.com/webstore/prod...ber=1&last=328

But they're not ship....



Originally posted by SilverRocket
As far as I know NGK is the only brand that makes em... I run the trailing platinums (stock on FD). I don't know if they really give you any power or anything, but they're one step colder so should be more detonation resistant. As well, the platinums apparently last a lot longer.

smnc 03-26-02 11:29 PM


Originally posted by dvcn
Good info:http://www.ngksparkplugs.com/techinf...s/overview.asp

For a street driven car, BR9EQ-14's are hard to beat.

Actually BURxEQP-14's easily beat the stock BRxEQ-14


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