What is the best plug for a stock 13B FI? I used a cold NGK in the 1st gen 12A. Any experience with the Split Fires?



Also, is it a good idea to use a gasoline additive like a Fuel Injector cleaner in a rotary engine?



Thanks!

Nick W.

 

Just use the NGK plugs that Mazda recommends. They seem to work the best.

 

Word is that those don't work at all. U need to have them sent in and cleaned, try RC engineering, i had good experience w/ them.

 

I heard the Bosch Spark Plugs are excellent?

havent tried them myself, anyone?

 

Bosch plugs are great in anything but a rotary. When I first got my 79 it had Bosch plugs in it and wasn't running terribly well with them (Granted the guy who was working on it was a dolt). Put in the NGK plugs and it worked much much better.



I'm told that some of the racers will use different plugs, but that's a bit out of my league

 

Plus Split Fires don't make them for the sec gen 7 at least none that i have found. I would stick with the NGK.



And I tryed to use a FI cleaner but nothing happened. I just took mine to a local injector shop to have mine cleaned, flowchecked and the balance checked all for 7.50 ea., they work fine. You might want to check your city to see if anyone does it localy first.