My mate who works at a motor factors got me some plugs for my zed but im noy sure if they are the right ones there PFR6B-11 laser platinium premium .Im a bit worried theres no b after the 11 are they ok.thanks taff.

Is it for a TT or NA?

11B for TT

11 is OK for NA

 

See Smithy

 

http://www.smithys-place.co.uk/engperf.php

Yep, they are NA plugs

 

You want NGK PFR6B-11C or NGK PFR6B-11B

This http://300zx.org.uk/partnumberkey.pdf tells you what it all means, although curiously it doesn't tell you the meaning of the final 'B'.

Thanks guys ill get them swaped for 11b.

Any one know the diffrence between 11b and 11c isnt the heat range the 11 part. thanks taff.

6 is the heat range

Isnt the B and C to do with the threaded length of the plug. The B's are slightly longer to help prevent det or something like that ?!??

Isnt the B and C to do with the threaded length of the plug. The B's are slightly longer to help prevent det or something like that ?!??

 

Give that man a Gold star, it sure is ;)

smithy

Any one know the diffrence between 11b and 11c isnt the heat range the 11 part. thanks taff.

 

6 is the heat range in this case. 11 refers to the gap, i.e 1.1mm

Thanks andy just looked at your link . :cool:

http://www.300zx-twinturbo.com/cgi-bin/manual.cgi?list=ma&dir=&config=&refresh=&direction=forward&scale=0&cycle=off&slide=18&design=default&total=33

 

Bottom of the page. Interesting thing is - I have a copy of the american service manual and that says the last letter (after 11) is the heat range :confused: Will try and scan it tomorrow....