NoPistons -Mazda Rx7 & Rx8 Rotary Forum - Ngk Sd 10a And 11a Plugs

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- 1st Generation Specific (https://www.nopistons.com/1st-generation-specific-16/)

- - Ngk Sd 10a And 11a Plugs (https://www.nopistons.com/1st-generation-specific-16/ngk-sd-10a-11a-plugs-49796/)

NGK SD 10A

NGK SD 11A

I ended up with boxes of these. I know these are for rotary engines only, but have no idea as to what mods are needed to run these. They seem to be discontinued from NGK and crossreference shows these thru DENSO going for about 32 bucks a pop. This sound about right to anyone? I think they are for 2nd gen or 3rd cuz they have an L on one and T on others. Anyone know anything bout these plugs. I was planning on putting a couple boxes on ebay but know little about them. They look like the Racing Peripheral Engine plugs.

here are some pics, anyone know if these are hotter or colder than the stock 1st gen plugs?

[attachment=31917:attachment][attachment=31918:attachment]

well there ngk, i bet there hotter

has anyone ever even seen or heard of these??? not the brand.....part #

[quote name='jgarza77' date='Jun 20 2005, 12:30 PM']has anyone ever even seen or heard of these??? not the brand.....part #

[snapback]727789[/snapback]

[/quote]

those are the old style plugs for the fc, they will tend to flood more, but otherwise should run fine