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Model specific boards => Golf mk4 => Topic started by: wsmith on 12 January 2015, 20:55

Title: spark plug gap
Post by: wsmith on 12 January 2015, 20:55

whats the best spark plug gap using bk7 for 1.8t aum stage 1 ive also running the red 2.0t ftsi coil packs cheers

Title: Re: spark plug gap
Post by: barrym381 on 12 January 2015, 21:03

I was told .028 but that could be wrong  :smiley:

Title: Re: spark plug gap
Post by: MoMartin on 12 January 2015, 22:41

Typically they are meant to be gapped between 0.028" and 0.032". Mine have just been gapped to 0.030 and it's running the smoothest it's been in a long while.

Title: Re: spark plug gap
Post by: Wazzzer on 13 January 2015, 13:19

I gapped my mates to 0.40 and they've been fine. I want to do this on my Golf soon...

Title: Re: spark plug gap
Post by: MoMartin on 14 January 2015, 00:47

This is a decent thread I found not so long ago, it's got everything spark plug related for the 1.8t
http://myfastgti.com/volkswagen/threads/14884-Best-Spark-Plug-Explaination-for-1.8t-Incl.-Heat-Range-Info

Title: Re: spark plug gap
Post by: wsmith on 14 January 2015, 21:08

 ive gapped them to 0.30 runs much better thanks alot
good link cheers

Title: Re: spark plug gap
Post by: Dalo Harkin on 02 February 2015, 13:10

I must admit, I have been looking into this recently after reading a few people mention the Iridium were a bit cr@p.

I just cant find a guide that tells me if I need 1 or 2 ranges colder... and then what to gap them at.

If anyone could give me an idea that would be good. I miss my Denso IK22s but they are frighteningly expensive even compared to Iridiums..

Title: Re: spark plug gap
Post by: Wazzzer on 02 February 2015, 20:19

One heat range colder will do you mate

Title: Re: spark plug gap
Post by: Scott D on 03 February 2015, 00:35

I had NGK PFR7Q which are IIRC 1 range colder than stock.

No issues and will be changing to these again when next servicing.