spark plugs?

[Lodey23]

would never have bosch plugs again, i bought the car with the bosch super 4s in, when i took them out they were totally knackered, tiny bits of ceramic missing off of them.

 

[JDUB 20V]

How about NGK BCR8ES? I use these on my BAM engined MK2 Golf and have never had any isses.. Track & Road highly recommend them. Anybody else have experience with these? X4 plugs within £10 which is a good deal i reckon.

 

[W11TTX]

Aren't the 8's gapped differently? Might stick with the 7's as that seem to be what most are using.

 

[worzel]

NGK BKR7EIX in mine for what its worth, no issues

 

[Dione J]

What are the advantages of having NGK BKR7EIX on a mapped car?

 

[ibizacuprabates]

They keep the engine temps down, they r a cooler grade plug

 

[mty12345]

The cooler temperture range means the plugs conducts heat away from the tip better than a hotter one at high revs/high boost presures, hence reducing the chances of the plug tip pre-igniting the charge at the wrong time. They will only affect engine tempertures by a fraction (maybe 2-3C), not really anything worth worrying about , it's the temperture of the plug tip that the heat range actually has an affect on. Too cold a plug will foul at idle speeds though so you have to get a good compromise between the two. Now my car is remapped i've just ordered the NGK BKR7EIX's. I think the 8's would be a step to far for a stage 1 car IMO