Spark Plug Questions and number Differences

[supraguy31]

Hey all, I cant find the answer so here goes.

I was out today at one of our local shops that they had a set of NGK Iridium Spark plugs there whiich they said were for the Supra turbo. I pulled htem down and I looked at the number on them and I cant remember ever seeing it before.

NGK Iridium BKR8EIX

Can someone tell me this these are good plugs or even plugs for a Supra. they do alot of RX7 mods also which is why Im asking.

I would like to get a good set but I want to know you alls opinion on these and if they are what Im looking for.

thanks
Robert

 

[dumbo]

check NGK web site. they tell all

 

[ForcedTorque]

Iridiums are not the best plugs for our cars.

 

[dumbo]

depends on engine mods....but this has been covered.

 

[jdub]

Iridium's are fine so long you don't run at expended periods of boost...they can glow plug.

The ones you listed should work, but are 2 steps colder than stock heat range...good for higher boost applications...not so good for a stock or mildly mod'ed motor. The NGK iridium part # for the stock 7M-GTE is BCPR6EIX...personally, I'd stick with copper plugs (BCPR6ES).