NGK Iridium Spark plugs Standard and One Step Colder

[Tarmac@TarmacSportz]

Hi All

 

I now have these in stock in packs of 6

 

NGK Iridium £50 delivered

NGK Iridium One Step Colder £50 delivered

NGK Laser Iridium One Step Colder £75 delivered

 

Cheers Chris

 

 

 

 

 

[370Ad]

At the same price delivered why would i go with one step colder Chris?

 

Need to order some soon

[Tarmac@TarmacSportz]

Nos/Supercharger/Turbo customers usually request One step colder plugs:

 

Not my words and maybe slightly out of context:

 

Anytime you run boost, or a high compression engine, you want to use colder spark plugs than stock. Basically you've got a piece of metal sitting in your cylinder that is searingly hot. The right amoutns of Heat + Fuel + Pressure = Combustion.

 

Now, if that plug is too hot, then it will preignite the fuel too early, and cause that ever so nasty situation called "Detonation" which can lead to your whole engine going KABOOM. And thats a bad thing.

[The Bounty Bar Kid]

DE or HR?

[Paddy78]

DE or HR?

 

Are they not the same?

 

Edit: Obviously, not the engines, but the plugs they take.

Edited May 2, 2013 by Paddy78

[Tarmac@TarmacSportz]

DE I'm afraid Dip, Im always neglecting you HR boys I know

[The Chubby Ninja]

Whats the difference between the laser and the normal chris?

[Tarmac@TarmacSportz]

 

 

Here you go Chubbs:

 

 

LASER IRIDIUM®

 

Laser Iridium® spark plugs provide superior ignitability and long service life.  Smallest tip diameter available Iridium / Platinum surfaces ensure slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions

 

Laser welded Iridium center electrode tip

Platinum disc welded to backside of ground electrode provides long life

Trivalent Metal Plating for superior anti-corrosion and anti-seizing

Faster starts and quicker acceleration

Better fuel economy and lower emissions

Best OEM Iridium spark plug available

Original Equipment Manufacturer approved design

 

[Paddy78]

DE I'm afraid Dip, Im always neglecting you HR boys I know

 

 

Out of interest Chris, and to save my ignorance next time, what is the difference between DE and HR plugs? Is it just size?

[The Chubby Ninja]

 

 

Here you go Chubbs:

 

 

LASER IRIDIUM®

 

Laser Iridium® spark plugs provide superior ignitability and long service life.  Smallest tip diameter available Iridium / Platinum surfaces ensure slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions

 

Laser welded Iridium center electrode tip

Platinum disc welded to backside of ground electrode provides long life

Trivalent Metal Plating for superior anti-corrosion and anti-seizing

Faster starts and quicker acceleration

Better fuel economy and lower emissions

Best OEM Iridium spark plug available

Original Equipment Manufacturer approved design

Cheers chris. Most of that went straight over my head apart from the word "faster" . Il take a set of the laser colder ones off you but wont be til next week. Il give you a pm next week mate cheers

[Tarmac@TarmacSportz]

 

Size and HR OEM plugs are Iridium, our very own mr AK350Z did an install guide on the HR:

 

http://www.350z-uk.com/topic/32951-spark-plug-change-vq35hr-my07/

 

DE I'm afraid Dip, Im always neglecting you HR boys I know

 

 

Out of interest Chris, and to save my ignorance next time, what is the difference between DE and HR plugs? Is it just size?

[Dblock]

I don't know for the 350z but these where the ONLY plugs anyone would use in a 172. I will give you a shout when I'm needings some mate.

[Tarmac@TarmacSportz]

Yup, it's either these or Denso. These are more popular over in the states