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:
1952-1954 Allard K3 1955-1956 Packard Clipper 1955-1956 Packard Four-Hundred 1955-1956 Packard Patrician 1956-1956 Hudson Hornet Special 1958-1958 Chevrolet Del Ray 1958-1963 Checker A9 1958-1971 Nissan 1000 1959-1961 Chevrolet Kingswood 1960-1966 GMC 3500 1964-1964 Jeep J-220 1964-1964 Jeep J-230 1964-1964 Jeep Truck 1964-1965 GMC B3500 1964-1969 Chevrolet G10 Van 1964-1969 Pontiac Beaumont 1964-1971 Jaguar XKE 1965-1966 Dodge P100 1965-1971 Jeep J-3800 1965-1972 Dodge P200 1965-1974 American Motors Ambassador 1966-1969 Oldsmobile F85 1967-1969 Chevrolet Caprice 1967-1969 GMC C15/C1500 Suburban 1968-1969 Chevrolet K30 Pickup 1969-1969 International M800 Navy 1969-1972 Honda 600 1970-1976 Mercury Capri 1970-1977 American Motors Hornet 1971-1973 International 1010 1971-1974 Dodge B100 Van 1972-1972 Stutz Limousine 1972-1974 Dodge W100 Pickup 1972-1976 Mazda B1600 1973-1973 Stutz Duplex 1946-1949 Allard J1 1947-1950 Checker A3 1950-1950 Lanchester Ten 1950-1951 Allard K2 1950-1952 Checker A4 1952-1954 Allard Palm Beach 1952-1969 Checker Taxicab 1953-1954 Checker A6 1954-1958 Jensen 541 1955-1956 Packard Caribbean 1955-1958 Chrysler Windsor 1955-1993 Chrysler Imperial 1957-1989 Dodge Lancer 1958-1958 Facel Vega FVS 1958-1969 Chevrolet Impala 1958-1969 Pontiac Laurentian 1960-1960 GMC Truck 1960-1965 GMC 2500 Series 1960-1966 GMC 3000 1960-1966 GMC Suburban 1961-1961 Mercedes-Benz 190SL 1961-1970 American Motors Rebel 1963-1967 Chevrolet P30 Series 1964-1968 American Motors American 1964-1978 Plymouth Fury 1965-1970 Jeep J-3600 1965-1973 Jeep J-2500 1966-1966 Griffith Griffith 1966-1969 GMC K15/K1500 Pickup 1966-1976 Rolls-Royce Silver Shadow 1967-1967 GMC P25/P2500 Van 1967-1969 Chevrolet G20 Van 1967-1969 GMC C15/C1500 Pickup 1967-1969 GMC G25/G2500 Van 1967-1969 GMC K25/K2500 Pickup 1968-1969 Buick Skylark 1968-1969 Chevrolet P10 Van 1968-1969 GMC K35/K3500 Pickup 1968-1974 American Motors Javelin 1969-1970 International 1200D 1969-1972 International M800 Post Office 1970-1974 Dodge D100 Pickup 1971-1972 Fargo B300 Van 1971-1973 International 1210 1971-1974 Dodge B300 Van 1971-1981 Jeep CJ5 1971-1994 Dodge Colt 1946-1949 Allard M 1952-1954 Allard Safari 1955-1956 Nash Ambassador Custom 1955-1980 Chrysler Newport 1955-2000 Chrysler Town & Country 1956-1956 Packard Executive 1957-1958 Dodge Suburban 1958-1958 Chevrolet Yeoman 1958-1960 Jensen 541R 1959-1961 Chevrolet Parkwood 1960-1963 Checker Superba 1961-1961 Dodge P100 Van 1961-1966 Dodge D100 Series 1961-1972 Toyota Crown 1963-1966 Chevrolet Suburban 1963-1966 GMC PB1000 Series 1963-1967 Chevrolet P20 Series 1963-1969 Chevrolet K10 Pickup 1963-1969 Chevrolet K20 Pickup 1964-1964 Jeep J-320 1964-1969 Pontiac Tempest 1964-1970 Dodge A100 Truck 1964-1971 Plymouth Belvedere 1965-1966 Studebaker Cruiser 1965-1966 Studebaker Daytona 1965-1967 GMC L3500 1965-1970 Jeep J-3700 1965-1974 Plymouth Fury III 1966-1966 GMC I1000 1966-1966 GMC PB2500 Van 1967-1969 Chevrolet C10 Suburban 1967-1969 GMC K25/K2500 Suburban 1968-1981 Nissan 510 1969-1969 American Motors Rambler 1969-1970 International 1000D 1969-1970 International 1100D 1969-1970 International Scout 1969-1971 International MA1200 1970-1973 Nissan 240Z 1971-1973 International 1110 1971-1974 Dodge B200 Van 1971-1974 Plymouth Scamp 1971-1978 American Motors Matador 1972-1973 Nissan 1300 1972-1974 Panther J-72 1973-1987 Honda Civic 1974-1974 International MHC1310 1974-1974 Plymouth PB100 Van 1974-1974 Plymouth PB300 Van 1974-1978 Nissan B210 1975-1978 Mercedes-Benz 230 1976-1978 Nissan F10 1976-1980 Dodge Aspen 1977-1980 Mercedes-Benz 280SE 1978-1979 Dodge Magnum 1979-1982 Nissan 310 1980-1994 Toyota Tercel 1981-1984 Bentley Mulsanne 1981-1991 Dodge B150 1981-1992 Dodge B250 1983-1988 Nissan Pulsar NX 1984-1984 Plymouth Turismo 1984-1989 Volkswagen Jetta 1985-1988 Chevrolet Sprint 1986-1989 Subaru RX 1972-1973 Subaru Deluxe 1972-1976 Toyota Mark II 1972-1977 Mazda 808 1974-1974 International 100 1974-1974 International 200 1974-1974 Plymouth PB200 Van 1974-1974 Volkswagen Dasher 1974-1983 Jeep Cherokee 1975-1976 Mercedes-Benz 450SE 1975-1976 Nissan 610 1975-1977 Nissan 710 1975-1979 American Motors Pacer 1975-1980 Dodge D200 1975-1980 Mercedes-Benz 450SL 1975-1980 Plymouth PB100 1975-1989 Dodge W100 1977-1981 Mercedes-Benz 280E 1977-1991 Dodge D150 1978-1986 Dodge Omni 1979-1979 American Motors Spirit 1979-1987 Mazda B2000 1980-1980 Rover 3500 1980-1981 Nissan 810 1981-1983 Plymouth PB350 1981-1985 Mercedes-Benz 380SL 1981-1995 Isuzu Pickup 1982-1982 Dodge Rampage 1982-1985 Chevrolet S10 1982-1985 GMC S15 1982-1988 Nissan Sentra 1982-1988 Oldsmobile Firenza 1983-1984 Chevrolet S10 Blazer 1983-1984 Chrysler E Class 1983-1988 Dodge 600 1983-1988 Mitsubishi Cordia 1973-1974 Subaru 1400 1974-1988 Jeep J10 1975-1976 Mercury Bobcat 1975-1977 Dodge Royal Monaco 1975-1979 Subaru GF 1975-1980 Dodge B100 1975-1980 Dodge W200 1975-1984 Rolls-Royce Camargue 1976-1980 Plymouth Arrow 1977-1985 Mazda GLC 1978-1978 Fiat 131 1978-1979 Fiat 128 1978-1994 Plymouth Colt 1979-1979 Subaru FE 1979-1982 Dodge D50 1979-1982 Fiat Strada 1979-1982 Plymouth Champ 1979-1984 Aston Martin V-8 1980-1986 Nissan 720 1981-1983 Plymouth PB150 1981-1984 Rolls-Royce Silver Spirit 1981-1992 Dodge W250 1983-1984 GMC S15 Jimmy 1985-1994 Mitsubishi Galant 1985-2002 Mitsubishi Mirage 1987-1993 Mazda B2200 1987-1998 Land Rover Range Rover 1988-1988 Yugo GVS 1988-1992 Daihatsu Charade 1988-1993 Ford Festiva 1988-2000 Dodge Grand Caravan 1991-1996 Dodge Stealth 1991-1997 Isuzu Rodeo 1984-1984 Volvo DL 1984-1986 Dodge Conquest 1984-2000 Plymouth Voyager 1986-1989 Nissan D21 1986-1991 Mercedes-Benz 560SEC 1986-1991 Mercedes-Benz 560SEL 1987-1988 Nissan Van 1988-1992 Audi 80 Quattro 1988-2000 Plymouth Grand Voyager 1989-1995 Plymouth Acclaim 1989-1996 Eagle Summit 1990-1994 Plymouth Laser 1990-1995 Suzuki Samurai 1992-1992 Mitsubishi Expo 1992-1993 Isuzu Stylus 1992-1996 Mitsubishi Diamante 1986-1992 Yugo GV 1986-1993 Dodge Daytona 1986-1994 Mazda 323 1987-1989 Chrysler Conquest 1987-1990 Mitsubishi Van 1988-1993 Dodge Dynasty 1988-1993 Volkswagen Fox 1989-1991 Audi 100 Quattro 1989-1994 Isuzu Amigo 1989-1997 Geo Metro 1989-1997 Suzuki Swift 1993-1996 Chrysler Concorde 1994-1997 Land Rover Defender 90 1947-1950 Checker A2 1955-1955 Nash Ambassador Super 1957-1959 Dodge Sierra 1958-1961 Chevrolet Nomad 1959-1974 Land Rover Land Rover 1960-1962 GMC V3000 Forward Control 1960-1976 Dodge Dart 1960-1976 Plymouth Valiant 1962-1963 International CM75 1962-1968 Chevrolet Chevy II 1963-1965 GMC PB1500 Series 1964-1964 Jeep J-210 1964-1970 Chevrolet El Camino 1965-1966 Studebaker Commander 1965-1967 American Motors Marlin 1965-1968 Jeep J-2800 1965-1968 Toyota Stout 1965-1970 Jeep J-2700 1965-1974 Plymouth Fury II 1965-1983 Jeep Wagoneer 1966-1966 GMC 1000 1966-1966 GMC PB3500 Van 1966-1966 Griffith 200 1967-1967 Chevrolet K20 Panel 1967-1969 Chevrolet C20 Suburban 1967-1969 Chevrolet K10 Suburban 1967-1969 GMC C25/C2500 Pickup 1967-1969 GMC K15/K1500 Suburban 1967-1969 GMC P15/P1500 Van 1967-1969 Pontiac Firebird 1967-1982 Toyota Corona 1968-1984 Morgan Plus 8 1969-1969 Chevrolet Estate 1971-1974 Plymouth Fury I 1971-1978 Dodge Monaco 1972-1973 Mazda 618 1972-1987 Jaguar XJ6 2000-2000 Chrysler Voyager 2000-2000 Chrysler Grand Voyager 2001-2004 Kia Optima 1975-1976 Mercedes-Benz 280 1975-1979 Nissan 620 1975-1980 Mercedes-Benz 450SEL 1975-1980 Plymouth PB300 1977-1980 Bentley T2 Series 1977-1983 Nissan 200SX 1978-1980 Dodge RD200 1978-1983 Fiat X-1/9 1978-1987 Subaru Brat 1980-1980 Dodge Mirada 1981-1981 Mercedes-Benz 380SLC 1981-1983 Plymouth PB250 1982-1983 Dodge 400 1982-1987 Jaguar Vanden PlasThe advanced E3 DiamondFire design increases combustion pressure and increases power in the engine.
Product Descripton:
Spark Plug Diamond Fire 14 mm Thread 0.750 in Reach Gasket Seat Resistor Sold Individually