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The place for all those routine questions about routine servicing.
User avatar
By W18NYS
#3724294
Hey guys and girls!!!

I've owned my supercharged EP3 for about 3 months now and am looking to do a minor service...
I want to put a set of NGK Irridium plugs in as it only has Bosch super 4's at the mo and I'm told I need to go a step colder on the rating but I can't seem to find information on the ones I need!!!
Anybody on here know what ones I need by any chance?

Thanks peeps!
User avatar
By SWT92
#3838639
Just been looking at the NGK Catalogue and been doing some reading. It doesn't look like there is an option for a "colder spark" iridium plug. To get a colder spark you need to make the gap bigger, but with iridium plugs it's says not to mess with the gap as it damages the core. You could just run the same plugs you have. But reading about iridium plugs I wouldn't worry about the temp of the spark as the plugs are very hard wearing. Another option maybe is to put a set of type S plugs in? Just looking at the Catalogue they have a lower copper content, as long as they have the same reach.
http://www.ngkntk.co.uk/wp-content/uplo ... t-2015.pdf

Page 36
I'm not sure it will work but just trying to help.

Sam

Long time ago I had and Ep3 for 220k kilometers in[…]