RX7Club.com - Mazda RX7 Forum - Which spark plugs for my application???

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basaltFD

08-13-06 07:23 PM

Which spark plugs for my application???

These are my mods:

Power FC
HKS TP
HKS RS intake
Blitz SMIC
Koyo radiator
RB dual tip exhaust
Greddy Elbow
Megan DP and MP (no cat)
Greddy pulley
High amp alternator

I'm getting high RPM misfires so I can't dyno my car properly. I'm wondering which spark plugs would be the best to go for at which heat range for leading and trailing. I'll be running around 14 PSIs on stock twins. I've heard HKS Iridiums are popular now...any help is much appreciated. Thanks!

EX0	08-13-06 07:39 PM

http://www.ngk.com/more_info.asp?AAIA=1192496&pid=2832

http://www.ngk.com/more_info.asp?AAIA=1192496&pid=2915

I only use NGK's. Those are the 2 rx7 laser platinum numbers. Buy them from O'Reilly or Autozone.

They also sell o2 sensors, plug cables, and I forget what else for the RX-7. I don't like HKS's they have all burned out / fouled on me pretty quick.

Buzzardsluck

08-13-06 08:26 PM

Wow your auto stores stock rotary plugs

EX0	08-13-06 08:47 PM

They used to for my buddies 8-).

basaltFD

08-14-06 11:38 AM

Has anyone else had any problems with the HKS iridiums?

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