RotorJoe

What type and how often do you guys change your plugs?

Turbonut

iTrader: (1)

My recommendation-Factory plugs NGK7EQ & 9EQ, unless modified, changed every 8/10,000 miles. Read the following:
https://www.rx7club.com/forum/showth...threadid=16833
https://www.rx7club.com/forum/showth...threadid=99868

Mr. Eccentric

Don't waste your coin on the Platinum, just change them a little more often. NGK is about the only Co. that makes them (I think HKS makes Iridiums, but anyway). The stock 7 and 9EQ as Turbonut said will do the proper job. If you drive hard, the electrode 'nub' on the lead will wear down quick, so pull one every once and awhile and take a look. The surface that the spark gaps to should have a light brown rusty looking deposit, not too thick.

Furious D

Was wondering what shape is the electrode in the middle? Does it start off a square electrode or is it rounded?

Mr. Eccentric

Starts off as a cylinder, squared off on the edges. It would look like a stack of quarters basically. Then it gets worn down to more of a beehive shape. Kind of comes to a dull point.

Furious D, yer at 100 posts, time to put in your personalized avatar!

Furious D

Mr. Eccentric > The avitar is the picture on the right correct? If it is, that's my own car. How do I put pics under my posts?