Hi, had searched the forum. Some say NGK BRK7E-11 every 3-4 oil changes.

I just called my local supplier that they say for 99 ITR, i should be using NGK double platinum PFR6G-11 plugs? So there is one heat range difference. I don't know what to go for?

I have an stock engine with just basic bolt-ons, header, intake exhaust.

What do you guys recommend me? On top of that, i want to do a complete tune up with dist cap, rotor, wires, since it been missing a bit lately.

Should i get all OEM stuff or aftermarket equivalent? And where online would you guys recommend to get them?

Thank you very much in advance.

 

copper 6s changed yearly works. irridum goes longer but most of us just change the coppers regularly. 7s are good for track days and a lot of hard driving. for normal street driving the 6s provide fewer emissions and better mpg

 

In what ways are the 7's better for track days?

 

Whatever the owner's manual says, typically no more than 30k miles on copper plugs.

 

I switched out the OEM plats for NGK V power 6's. Went to the 7's and noticed the car get just a bit peppier but didn't notice a drastic change in fuel consumption.

 

colder plug, reduces the chance of detonation. at the same time, in street driving that's worse mpg, less heat in the chamber and more carbon deposits

jdm cars are spec'd with 7s and usdm 6s both engines can go either direction

 

Thank you very much for the replies.

So for the 6s, they are NGK BKR6E-11? they come pre-gapped right?

I will just use the 6s as daily and switch to 7s when i go track. I will stick with the copper ones too and don't mind changing every 30k miles.

How about the other tune up items, cap, rotor, wires? Should i just get OEM ones? or aftermarket equivalent?

 

the BKR7E should be pregapped to .028

always check but its usually good unless the parts guys are throwing them at the ground.

oem tune up stuff is gonna be the best if you have a guy to get you discounted pricing. even if not its not too bad

 

I went with oem NGK PFR6G-11, oem distributor cap & rotor.

also went with NGK Power Cables for spark plug wires.

I work at a honda in bc, pm me and i'll see if i can hook you up.

 

I used the S2000 NGK PFR7G-11S plugs for a couple of years when the motor had JDM ITR pistons. It's another option out there for those that want a platinum plug with a colder rating.

The 7's won't foul out in colder weather unless you do a lot of short, errand trips.

 

7 heat range is recommended by manafacturer.