Lately i have heard alot about different types of plugs, ive heard alot about autolite, champion, and ngk. I have none of those. I have the Bosch ones with the 4 prong things goin to the electrode thing. Are those good? Havnt seen anyone mention them in here yet

 

use ngk's. i have the 4 prong ones in my 1st gen, but i cant remember what the part number is. go to racingbeat.com and see what ngk's to get.

 

Only use the NGKs

They are four pronged

Do a search to find the exact part number or check your owners manual.

There is a tone of information about this on the forum already

 

NGK or Nippon Denso.. I run the denso's and they work just fine.

I just nearly had a heartattack when I pulled the plugs out of my new 7 to find out it had auto-lite single prong plugs in it.. omg those got thrown in the trash so fast.. haha I even had an old set of N-D plugs from my other car that I threw in there for the time being. lol

Oh and if you are wondering why you shouldn't use anything else? Just about every manufacturer has tried to make a plug for the rotary and failed. If you use the wrong plug it will fall apart in your engine due to the heat and screw your housings, rotors, and every seal in the engine. Now does that sound like it's worth the $10 you would save by buying the crappy autolite plugs??

 

I don't think i have ever get and explination to as why the rotary's burn so hot? I know the exhaust burns at 1700-2000 degrees F, but why. I know someone can give me an elaborate explination on this subject.

 

I think it has to do with the fact that 3 parts of the combustion cycle occur at the same time so the rotor surface never has a chance to really cool. You have gas compression which generates heat, you have combustion which generates heat and you have the exhaust gasses insulating the engine all acting on one rotor that is only about 6 inches in diameter.. So unlike a piston engine which basically has a dead cycle the rotary is always doing something that generates heat... but thats just my best guess....

 

That is correct.
The rotary basically functions like a 6 cylinder with 2 differences.
1)It only has 2 combustion chambers instead of 6
2)It doesn't have the "dead cycle" (intake/exhaust) cycle that a 4 stroke piston does.

Basically you end up with both combustion chambers firing continuously. That generates A LOT of heat, and also explains why our spark plugs need 4 prongs. A one or two prong plug would just wear out WAY to quickly...

 

Never use platinum on these cars ever......RAN LIKE dog "leavings"!!!!

"Lisa daddy's talking to the policeman"

 

Gotta Love the Simpsons

 

Actually Platinums are standard on thirsd gens from what I understand.

I was gonna try them with my next plug change...

 

no.. just run standard.. The 3rd gen runs platinum because of the turbo plat is almost a requirement for any turbo application but if you put plat in your NA motor you are just going to foul the plugs a lot sooner.. just a waste of money IMO.