i have bad problems with my RX7 (93 twin turbo japanese)
as some of you may already know..
im going through all the problems,,,,one by one..
just wanted this one question answering do spark plugs matter..
MAZDA supplied me with 4 trailing edge plugs.....and i was also told by another company that the car will run normally on 4 trailers is this true....or should i go out and buy 2 leaders

thanks guys

 

Trailing....not trailing edge or trailers.
Leading....not leaders.

Depending on your mods, is dependent upon what spark plugs. I used to run 8's and 9's, but after going single, have gone to 9's X 4.

 

Running all 4 plugs the same (like the heat range of the trailing plugs) can be done. There are many threads on the subject here on the forum which have been debated to death.

Most people seem to agree that unless the car is very modified or running on a track, running the heat range of the trailing plugs in the leading position will only cause them to foul sooner with just normal street driving.

 

Tiger18

what sort of problems you having?

check this link out :


http://www.mazdarotaryclub.com/forum...=&threadid=264



ShaQ

 

change your plugs every 5k