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NGK Long reach sprk plug
Posted: Sun Feb 24, 2008 10:49 am
by EGG80X
Has anyone try NGK ZFR6F-11 long reach spark plug?
I'm worry it might hit the piston....
Posted: Sun Feb 24, 2008 11:02 am
by green_comet
They sell these on MX5parts website, they are supposed to be pretty good too. I dont think they would sell them if they hit the pistons.
http://www.mx5parts.co.uk/product_info.php/products_id/470 
Posted: Sun Feb 24, 2008 11:07 am
by EGG80X
true, i got a set here ready to intall
Posted: Sun Feb 24, 2008 11:59 am
by TieNN89
whats the benefits having long reach plugs?
Posted: Sun Feb 24, 2008 1:00 pm
by green_comet
'Supposed' to give a slight improvement in power by placing the spark slightly further down in the cylinder.
Posted: Sun Feb 24, 2008 8:04 pm
by Steampunk
Hmmm.... never heard that one before GC. But then again, it's was confirmed by respected lab tests that having all the ground electrodes on all plugs facing the same way gives more power.... but we are talking like 1% at the most, but hey, it's free power.
Re:
Posted: Sun Feb 24, 2008 9:10 pm
by EGG80X
1red5 wrote:Hmmm.... never heard that one before GC. But then again, it's was confirmed by respected lab tests that having all the ground electrodes on all plugs facing the same way gives more power.... but we are talking like 1% at the most, but hey, it's free power.
it also adds more compression
Posted: Mon Feb 25, 2008 9:20 am
by Steampunk
Hmmm.... makes sense in theory.... but then again, carbon deposit build-up also adds compression.
I don't mean to be argumentative, but would there also be a danger of pre-igntion? I guess even if there is, you can go for a long-reach & colder spec plug.