From the factory they use: Beru Model#14FGR 6KQU

I cannot find any info on these anywhere?

Does anyone have any idea on how to cross reference these with the NGK Iridium plug part#'s?

(As i recall, most beru plugs were copper, yes?)

 

I use the NGK plugs and when I get home shortly, I'll get you the number.

 

The NGK number is BKR 6 EK. I stay with copper because of the boost I run.

 

Not to hijack your thread, but I have a 2002 that is scheduled to have the spark plugs replaced on Tuesday. I thought the correct spark plug was FGR 5 KQEO; however, the mechanic told me that the OEM spec is FGR 6 KQC...that is what he is putting in. Does anyone know which is correct or if it matters if I go with either?

 

its possible the part number has been superceeded.

there's a diy over @ renntech.org . MY99 and MY2002+ have different part numbers.

 

I would stay with the heat range of "6" rather than installing a cooler plug like the "5".

 

2001 996TT were delivered with FR5 plugs....they were changed from MY02 onwards with FR6 plugs.
Perhaps the change was made across all the Carreras?

 

My indy mechanic, whom I trust, told me that my 2000 Cab should have the new spec plug when the originals were replaced at the 30K check. He states that my car now operates under the 60k plug change interval .... if I so desire.

 

Generally, a boosted engine will use a cooler plug because of the increase compression in the cylinders. So, the TT using a cooler plug than the NA engine is right. However, many TT owners still run the FR6 plugs.

REMEMBER that the NGK plug heat designation is the OPPOSITE of Bosch. The lower the number, the HOTTER the plug.

 

1999Porsche911 (what's ur reall name if u don't mind me askin)

What plugs would you suggest for my nitrous application? I was probably going to stick with copper and go one degree lower. Do you think it would be necessary to run one heat rating lower or should i just to it to err on the side of caution.

 

The name is Jim, and yes I would stay with copper and go one heat range lower. After running awhile, look at one of the plugs and you'll be able to tell if they are too cool (not cleaning themselves) or just right. Although Nitros is a cold application, it will greatly increase combustion chamber temps as does forced induction. You MAY find, that the standard heat range will work fine, but I would rather go a safe route first and then back up to the hotter plugs if necessary. There is not a great difference between a #5 plug and a #6 plug anyway.

Jim

 

Pelican Parts is showing an NGK 999-170-207-91-M220 for a MY99C4. Does this part # equate to the NGK BKR 6 EK?

Thanks,

Jeff

 

I just did mine and used the Beru plugs (for 4 of the 6) that I could actually remove!