Champion spark plug ID

[firko]

I've found a box of Champion spark plugs in a drawer while I was looking for something else and can't remember what they're for. I usually use NGK or Nippon Denso in cars and bikes so these are a mystery. I've tried to find an equivalent chart but nothing mentions these. The plugs are Champion Gold N9YX. Anyone got a clue?

[lukeb1961]

Just the top-line version of N9YC's.

Alpha GTV6, Audi 80 (1600), Audi 100, Audi FOX
BMW 3.0CS, many of the BMW's)
Valient HEMI Pacer, 340ci, slant 6 etc..

[firko]

Thanks Luke, they must have been left over from the last service on the Beemer I have no idea how they got in my drawer, they can't be left over from my Valiant days as the website is listed on the box! Ah, one of life's mysteries.

[pancho]

Don't lose 'em Firko, I stuck one in my RT1 when it wouldn't start on a new ngk and now thats what I use in my XT motor as well. Funny thing once you could buy them anywhere but now not many stockists it seems. cheers pancho.

[mainline]

I used them in the FX ute. It was on lpg and these were the only plugs that worked

[pancho]

after a couple of experiences with plugs I'm no longer a fan of ngk. cheers pancho