dimitry04

are denso iridium plugs even worht putting in the fc's. i work at advance auto parts and can get them fairly cheap. should i bother?

beefhole

iTrader: (29)

If you can get them cheap why not?

dimitry04

i wasnt sure if it was even worth upgrading to them.

RexRyder

iTrader: (10)

The ngk dirt bike plugs for 1.49 ea are just as good.

Need to shave your socket though

dimitry04

haha. i know theres cheaper alternatives. but i take pride in my cars, so they get the best of everything. lol im such a pushover

Rx-7fetish

Say what?

dimitry04

haha exactly. that dont make sense. and whats the point in buying plugs for that just to have do modifications to use them. screw that. ill spend the money i need to and just throw them in. haha im lazy

MazdaMike02

iTrader: (4)

Are they rotary specific?

Aaron Cake

iTrader: (1)

I've never seen the point in fancy spark plugs for the FC since you change them yearly anyway.

dimitry04

i guess the point of platinum over copper is that the electricity doesnt transfer as much metal over as it would on the copper. thats why they seem so worn after time. and then the same with iridium over platinum.. the things the internet tells you when your bored. aha

Rx-7fetish

This is why the stock spec plugs are getting harder to find and more expensive. Because you guys keep trying to and using cheaper stuff not meant for the car, when the store sees no sales in a product they drop it, when stores start dropping something the company starts producing less at a time and the price goes up.

beefhole

iTrader: (29)

Yes... it's clearly all our fault as rotary-engined car drivers that spark plugs are expensive. Not because rotary engines have ever been rare....

RXSpeed16

iTrader: (41)

Part nubers for these? I heard about high hp cars using these, but nothing about how they perform in stock 7/9 heat ranges.

dimitry04

oh dont worry guys. i full fledged am not gonna shave money. **** that. these cars are worth every penny you put into them. like i said i take pride in my cars. if your just gonna do that cheap ****. you dont deserve it. you get what you pay for right?

Rx-7fetish

I said price going up. Not getting expensive, they were already pricey. But supply and demand dictates price, if the demand isn't there then supply will drop, when supply drops business's are gonna charge more per plug to the customer to make up the difference for how long they will sit on the shelf, if they don't decide to drop it all together.
Why do you think Honda performance parts are so much more plentiful and cheaper than anything else.

RXSpeed16

iTrader: (41)

If the parts store business model is based on one person coming in to buy a set of spark plugs once a year, (which I'm sure everybody always does) then they're already losing money by carrying rotary plugs. They are doing it as a service, not because it makes them money. The big problem is going to come when NGK stops producing rotary plugs. Personally, I'd like to have some alternatives available.

RexRyder: Are you referring to B9EGV's? Locally, I can't find much savings over a set of BUR's.

RexRyder

iTrader: (10)

Usually the guys with the little 5 or 10 in the rotor by their name means they know some **** about RX-7's

You should probably try doing a search on the aforementioned plugs before posting anything else.

RexRyder

iTrader: (10)

Just checked the car and yea they're b9egv. Still use burs on the trailing tho. I get mine at the bike shop 10 at a time 1.49ea. Last I checked burs were still 5-7.

dimitry04

congrats. i asked a simple question and i replied to something i thought was pointless. im so sorry. you are the kind of people on here i cant stand. so you have a special emblem. woohoo. maybe if your respectful you might be listened to. or i may take your advice seriously. i do nothing but see you dog on and negatively comment other people in their posts so im sorry i didnt feel the need to be as nice as i should. but in all honesty. i wasnt really being mean. so for one i dont think your a mod. so dont be barking orders at me. i didnt do anything wrong. but like putting money into my stuff and not be a cheap ***. k thanks bye.

RexRyder

iTrader: (10)

Dude sorry I hurt your internet feelings but you need to search before saying some ignorant stuff. What you said is like saying "this aftermarket turbo needs modification to fit so **** it"

BTW I wasn't even talking about me you should read other peoples posts too.

dimitry04

thats a turbo tho. thats worth it to do the mods to. but to save 5 dollars a spark plug and have to mod your **** to use them. thats just nonsense. if you spend hundreds maybe even thousands to do a new turbo. im sure no one will give you heat for modding stuff to make it work. turbos arent cheap. and its nothing near the same. i understand save money when you can and not harm anything. but 4 or 5 dollars per plug when you need 4. get a grip. and i was responding to you telling me to search first. i did. and didnt see anything directly about iridium. maybe i wasnt searching right. who knows. but it was an honest question and i gave an honest response when i thought it was rediculous. if it works for you. im glad thats great. but that aint for me. im not gonna modify things just to save 20 bucks. so im sorry. all is forgotten on my part.

dimitry04

and frankly. i never said anyone was stupid or in anyway shape or form degraded anyone. i respect the people on here who actually have advice worth listening too. but the factory plugs thru aap are like 5 or 6 dollars each. without my discount. so i dont think those are to bad. the plugs for truck are double that. and i need 8 of them. so im done. im not even going to argue with you anymore. it aint worth it. i value the ability to come on here and get info or advice and answers when i need it. your not worth getting banned over. enjoy your night

RexRyder

iTrader: (10)

Dammit I quit do whatever.

Turbonut

iTrader: (1)

Try to get bacl to OP's question. I've owned the '89TII since new and always replaced the plugs about every 7k miles, so many years ago I thought I would try the Denso Iridum plugs, 670 miles later trailing 2 went out, returned the plugs and purchased the regular NGK's. A few years ago I tried the NGK Platinum plugs and they have been fine and no plug changes since.

RotaryEvolution

iTrader: (30)

cheap for iridiums being what? $20 each? that's still $80 a set for? a few horsepower gain and more headache.

these engines are old and tired, they have a tendency to run rich, have low compression and burn oil. all those things combined lead to spark plug fouling easier.

over the years i have seen even the platinum stock NGK replacement plugs foul out numerous times in cases where they really shouldn't have. switching to the standard copper core spark plug BUR*EQ always fixed the issue starting the massively flooded engines.

as for typical spark plugs in a rotary engine, uh no, the surface discharge OEMs are far superior than the arm over electrode style used for piston engines.

stop thinking you are smarter than you really are, NGK wires with standard BUR7/9EQ plugs have been the most reliable so far that i have found. granted a little acceptance that the spark plugs wear quicker has to be made, these are not renesis engines with lower mileage and tighter tolerances. the renesis also has a tendency to cook the coil packs, food for thought.