BRISK PREMIUM LGS SPARK PLUG

 Spark Plug Buyer’s Guide Questionnaire  

1) Name of series: BRISK PREMIUM LGS SPARK PLUG 

2) Spark plug Intended use:  All late model naturally aspirated and mild forced induction applications (colder heat range) and older vehicles with upgraded ignition systems.  The Brisk Premium LGS Spark Plug use on modified forced induction applications is limited by the ability of the ignition system to supply adequate power. 

3) Spark plug center electrode material:  Silver – The material with the most free electrons.  Silver is by far the best thermal and electrical conductor of all metals. 

Properties of Materials
Material	Thermal	Electrical
	Conductivity	Conductivity
	W/(m•K)	MS/m
Silver	407	66
Copper	384	57
Gold	310	45
Iridium	147	18
Platinum	70	10
Nickel	59	10

 4) Spark plug center electrode diameter:

LGS A, B - 2 mm

LGS D, E, G, R, N - 2.7 mm

 5) Spark plug electrode style:

Projected semi-surface discharge: spark plug heat ranges 19, 17, 15, 14, 12

Surfaced semi-surface discharge: spark plug heat ranges 12 M.C. RACING only, 11, 10, 9                              

 6) Spark plug side electrode style:  Retracted multi-ground electrodes which are integrated part of the spark plug shell for best possible heat transfer, unrestricted access of the air-fuel mixture to the spark discharge, and unrestricted flame front propagation in the initial stages of flame front propagation.  No spark plug indexing required. 

7) Spark plug shell material:  DIN QST 36-3 

8) Spark plug gap:  Not adjustable.  LGS – T  (reduced spark plug electrode distance) is available only as DOR 14 LGS - T for high performance applications where stock ignition system is not capable supply adequate power to fire the LGS series. 

9) Available heat range: Brisk spark plug 17,15,14,12,11, 10, 9

• Brisk Premium LGS spark plug has been developed after two-year cooperation with Lamborghini Morori Marini. Brisk Premium LGS spark plug utilizes extremely long glide-spark and massive integrated side electrode. Massive integrated side electrode ensures superior heat removal from active part of the spark plug even in the most extreme conditions, therefore eliminating electrode burn off seen on conventional spark plugs in race applications. Extremely long glide spark (almost 3mm) protrudes deep into combustion chamber, carries more potential charge and is unshielded by the conventional side ground electrode. The air and fuel mixture is ignited by the Brisk Premium LGS spark plug more spontaneously and flame front spread is unrestricted and more uniform.

Spark Plug Feed-Back:

 Owner: Performance Distributors
Car: 2002 Dodge Ram 4.7L

We conducted the test today on the DOR14LGS spark plugs which you sent to  us. 

We ran the test on a '02 Dodge Ram, 4.7L. 

We ran a series of 0-60 mph runs. 

With the stock plugs we averaged a 10.36 ET. 

With Brisk plugs we averaged a 10.27 ET, an average reduction of .09 

seconds-very good! 

On our very best test comparison, we reduced the 0-60 ET by .36 

seconds-excellent! 

Thank-you,

Steve Davis

Performance Distributors

2699 Barris  Dr.

Memphis, TN 38132