Texas_sumo

I love snarky comments as much as the next guy I came across this at rotaryhead.ca

"Spark Plugs

Use only the recommended four-electrode type plugs made by NGK. There are no substitutes, regardless of what the rookie at Napa, Canadian tire or most other retail auto parts suppliers would have you believe. The ones you need are the NGK BR8EQ14 (1st gen cars) or combination of BR8EQ or BR7EQ or BR9EQ depending on which generation, turbo or non-turbo, etc. you have."

Any truth to it?


Regards,
Sumo

Rx-7Doctor

iTrader: (13)

Yes, What rotorhead.ca does not want you to do is believe that the single electrode ones by Autolite or the 3 prong by Bosch or other substitutes will do a good job.
However the equivelent ones made by Nippondenso are acceptable but they are very difficult to find.
NGK is the proven effective spark plug for our engines, period!

FirebirdSlayer666

iTrader: (3)

Doc has it here. I've actually had more success finding Denso Nippons rather than NGK but I've used both with great success. I wouldn't use Autolite in any of my cars, just a personal prefference.

trochoid

iTrader: (6)

As much as everyone touts the NGKs, very few of them are aware the the Nippon Densos were the oem plugs from the factory. Either brand of plug is good, some have better results with one over the other with no clear leader. The point is, stay away from the single electrode plugs. They do not perform as well nor do they last as long as the 4 prong ones. I have found that both the NGKs and NDs perform quite well.

Recomended plugs per the 85 Owner's Manual are as follows:

...............hot type.........standard..........cold type
NGK........*BR7EQ14......BR8EQ14..........BR9EQ14
ND..........*W22ED14.....W25EDR14.......W2EDR14

* Not for vehicles with E.G.I systems.

Cold plugs are for continuous high speed and heavy load conditions. If the standard plugs get fouled as a result of continuous low speed operation, such as city driving, it is recommended that the hot type be used. End quote.

Texas_sumo

Thanks guys, I'm still a huge rookie in this arena, I know some things, like the equation for a Epitrochoid, but not which plugs to use.

Thanks again
Sumo

MosesX605

The only plugs I can get for my car locally are at the dealership.

$9.00 a pop.