Race car drivers will tell you that the single sharp edge on spark plug electrodes wears out too fast for long term use. The E3 DiamondFire design presents multiple sharp edges to the circular sharp edge of the center electrode, which allows the spark to naturally seek the path of least resistance. The problem is that each time a spark jumps between two opposing spots of the electrode pair, the local resistance increases. After a few sparks, the local resistance becomes so high that the spark seeks alternate sites to initiate from and land on.
Multiple sharp edges give the spark more paths to follow, thus reducing wear on each part of the electrode. The E3 prototypes we tested outlasted all non-platinum spark plug in longevity even though they were made from mild steel. For production plugs, we use a special high-temperature alloy with a high nickel content plus additional elements to make an extremely long-lived electrode pair.
The E3 design also keeps its "freshness" much longer than standard plugs. DiamondFire plugs create more power while using less fuel (brake specific fuel consumption) than any other design. During our testing, we discovered that standard plugs degrade quickly, losing up to 10% of their power after just 50 hours of use (about 1, 200 miles in a typical car). This is why race car drivers change spark plugs between heats: The multiple sharp edges of the E3 DiamondFire design create better combustion when new and keep their edge "sharpness" for a considerable time.
Additionally, the three legs that support the special geometry of our design move heat out of the ground electrode, which helps the electrode last longer. The center electrodes are forged with a copper center core surrounded by a nickel alloy sheath and tip. The copper pulls heat out of the center electrode's tip, which also helps durability. The copper core is virtually equal to platinum in extending electrode life.
Features:
E3 Spark Plug Flame Kernel Shape:
Flame moves toward piston and bulk air/fuel mixture - less quenching on cylinder walls Reduced time delay in flame growth - shorter path to piston head Faster flame growth compared to standard plugs Larger flame kernel moves heat faster into combustion chamber Larger flame front creates more localized pressure, making a faster pressure rise in cylinder during the power strokeVehicle Applications:
1970-1974 Chevrolet K30 Pickup 1970-1974 GMC K25/K2500 Pickup 1971-1977 GMC Sprint 1972-1974 Chevrolet G10 Van 1970-1974 Chevrolet K20 Pickup 1970-1974 Chevrolet P20 Van 1970-1974 GMC K15/K1500 Pickup 1970-1974 GMC K35/K3500 Pickup 1970-1974 GMC P25/P2500 Van 1970-1986 Chevrolet C10 Suburban 1970-1986 Chevrolet Caprice 1970-1986 Chevrolet El Camino 1971-1972 Chevrolet Biscayne 1971-1974 Chevrolet G20 Van 1971-1977 Chevrolet Vega 1970-1974 GMC C25/C2500 Suburban 1970-1974 GMC C35/C3500 Pickup 1970-1986 Chevrolet Corvette 1975-1975 Checker Marathon 1975-1978 GMC K15 Suburban 1975-1978 GMC K25 1975-1986 Chevrolet C30 1975-1986 Chevrolet K20 1975-1989 Chevrolet P30 1976-1978 Oldsmobile Starfire 1979-1989 GMC P2500 1982-1986 Chevrolet Cavalier 1982-1992 Oldsmobile Cutlass Ciera 1982-1995 Pontiac Firebird 1984-1988 Pontiac Fiero 1985-1996 Ford E-350 Econoline 1985-1996 Ford F-150 1985-1997 Ford F-350 1972-1973 Pontiac Ventura 1972-1974 GMC G25/G2500 Van 1973-1975 Chevrolet Laguna 1974-1974 Pontiac Catalina 1975-1977 Pontiac Astre 1975-1988 Chevrolet G30 1976-1980 Chevrolet P10 1979-1986 GMC C2500 1979-1987 GMC G2500 1982-1990 Chevrolet Celebrity 1982-1990 GMC S15 1982-1992 Buick Century 1975-1978 GMC C35 1975-1986 Chevrolet C20 1976-1989 Chevrolet P20 1978-1986 GMC Caballero 1979-1980 GMC P1500 1979-1986 GMC C1500 Suburban 1983-1989 Chevrolet S10 Blazer 1983-1989 GMC S15 Jimmy 1985-1985 Buick Somerset Regal 1985-1990 Chevrolet Astro 1985-1996 Ford E-150 Econoline Club Wagon 1985-1996 Ford F-250 1986-1986 Pontiac Parisienne 1987-1987 Chevrolet R10 Suburban 1987-1987 GMC R2500 Suburban 1989-1989 Chevrolet R3500 1985-1987 Oldsmobile Calais 1985-1990 GMC Safari 1985-1996 Ford E-150 Econoline 1985-1996 Ford E-350 Econoline Club Wagon 1986-1987 Buick Somerset 1987-1987 Chevrolet R20 Suburban 1987-1987 GMC V1500 1987-1988 Chevrolet R30 1988-1991 Oldsmobile Cutlass Calais 1990-1995 Chevrolet Lumina APV 1987-1987 Chevrolet R10 1987-1987 GMC R1500 1987-1987 GMC R1500 Suburban 1987-1988 Chevrolet V30 1987-1989 GMC V3500 1987-1993 Chevrolet LLV 1991-1991 GMC Syclone 1991-1994 Isuzu Pickup 1995-1996 AM General Hummer 1970-1986 Chevrolet C20 Suburban 1971-1971 Chevrolet Brookwood 1971-1974 Chevrolet G30 Van 1997-1997 Ford F-250 HD 1975-1975 Oldsmobile Cutlass Supreme 1975-1978 GMC K25 Suburban 1975-1986 Chevrolet K5 Blazer 1975-1987 Chevrolet G20 1976-1978 GMC G15 1976-1978 GMC P15 1977-1978 GMC K35 1979-1986 GMC K1500 Suburban 1979-1988 GMC G3500 1982-1986 Buick Skyhawk 1985-1991 Ford E-250 Econoline Club Wagon 1985-1996 Ford Bronco 1987-1987 Chevrolet V20 1987-1987 Chevrolet V20 Suburban 1987-1987 GMC V1500 Suburban 1987-1987 GMC V2500 1987-1987 GMC V2500 Suburban 1987-1988 GMC R2500 1987-1990 Oldsmobile Cutlass Cruiser 1992-1993 GMC Typhoon 1970-1974 Chevrolet C10 Pickup 1970-1974 Chevrolet C20 Pickup 1970-1974 Chevrolet P30 Van 1970-1974 GMC C15/C1500 Pickup 1970-1974 GMC C15/C1500 Suburban 1971-1971 Chevrolet Kingswood 1971-1974 GMC P15/P1500 Van 1971-1986 Chevrolet Monte Carlo 1973-1973 Chevrolet P10 Van 1975-1978 GMC C25 1975-1978 GMC C25 Suburban 1975-1978 GMC P35 1976-1987 Chevrolet G10 1977-1986 Chevrolet K30 1979-1986 GMC C3500 1981-1984 Oldsmobile Omega 1981-1987 Pontiac T1000 1982-1983 Pontiac J2000 1982-1986 Cadillac Cimarron 1982-1986 Oldsmobile Firenza 1987-1987 Chevrolet V10 1987-1987 Chevrolet V10 Suburban 1970-1974 Chevrolet Blazer 1970-1974 Chevrolet C30 Pickup 1970-1975 Chevrolet Impala 1972-1975 Chevrolet Nova 1975-1978 GMC K15 1976-1986 Pontiac Sunbird 1978-1979 Buick Electra 1979-1986 GMC K2500 1979-1986 GMC K3500 1982-1991 Pontiac 6000 1984-1985 Chevrolet Citation II 1985-1996 Ford E-250 Econoline 1986-1986 Pontiac Grand Prix 1989-1989 Chevrolet V3500 1989-1991 Isuzu Trooper 1990-1995 Pontiac Trans Sport 1991-1993 GMC Sonoma 1969-1972 Ford Mustang 1970-1974 Chevrolet K10 Pickup 1970-1974 GMC C25/C2500 Pickup 1970-1987 GMC Jimmy 1971-1971 Chevrolet Townsman 1972-1974 GMC G35/G3500 Van 1975-1978 GMC C15 1975-1978 GMC C15 Suburban 1976-1987 Chevrolet Chevette 1978-1984 Pontiac Phoenix 1979-1989 GMC P3500 1980-1991 Buick Skylark 1982-1993 Chevrolet S10 1987-1988 Chevrolet R20 1987-1989 GMC R3500 1990-1994 Oldsmobile Silhouette 1991-1992 Isuzu Rodeo 1970-1973 Chevrolet Chevelle 1970-1974 GMC K15/K1500 Suburban 1970-1974 GMC K25/K2500 Suburban 1970-1974 GMC P35/P3500 Van 1970-1986 Chevrolet K10 Suburban 1970-1986 Chevrolet K20 Suburban 1970-1992 Chevrolet Camaro 1971-1974 GMC G15/G1500 Van 1971-1975 Chevrolet Bel Air 1973-1976 Chevrolet Malibu 1975-1977 Chevrolet Monza 1975-1978 GMC G25 1975-1978 GMC G35 1975-1986 Chevrolet C10 1975-1986 Chevrolet K10 1976-1978 GMC P25 1978-1978 Buick LeSabre 1978-1980 Buick Estate Wagon 1979-1986 GMC C1500 1979-1986 GMC C2500 Suburban 1979-1986 GMC K1500 1979-1986 GMC K2500 Suburban 1979-1987 GMC G1500 1980-1983 Chevrolet Citation 1980-1984 Pontiac Acadian 1984-1985 Pontiac J2000 Sunbird 1985-1991 Pontiac Grand Am 1986-1986 Pontiac Bonneville 1990-1992 Chevrolet LuminaThe advanced E3 DiamondFire design increases combustion pressure and increases power in the engine.
Product Descripton:
Spark Plug Diamond Fire 14 mm Thread 0.438 in Reach Tapered Seat Resistor Sold Individually
