Has anyone tried or is using these Iridium type plugs....if so are they any better than the good old NGKs....they are supposed to be better in all ranges but I was wondering if that applied to rotarys as well or is it just for those piston junkies.

 

Waste of money unless you're running a highly modified engine!



-Ted

 

One of the guys on the Toyota Tacoma board I occasionally go to, did a dyno test and street 0-60 test and found no difference what so ever on a basically stock motor 3.4 V6 between the Iridium and normal NGK copper plugs.

Since that motor uses a plug very simular to the RX-7; I would conclude that there wouldn't be any changes in an RX-7 other than your wallet would be lighter.

 

Probably the ONLY difference one would see is a bit longer plug life.

 

Bingo!&nbsp We have a winner!&nbsp It looks like "iridium" is the next step-up in spark plugs technology since "platinum" to lengthen longevity...

The iridium ads claim that the electrode also stays a bit more evenly heated, which can minimize detonation due to localized heating of the electrode under heavy load...


-Ted