Description
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 stroke
Vehicle Applications:
1969-1969 Yamaha SS338
1972-1972 Yamaha AT2
1972-1974 Polaris Colt 295
1972-1975 Suzuki TS400
1973-1974 Yamaha SC500
1973-1974 Yamaha TX650
1973-1975 Arctic Cat El Tigre 440
1960-1969 BMW R50/2
1960-1969 BMW R60/2
1966-1966 Honda CB450
1969-1974 Honda CL450K Scrambler
1971-1971 Yamaha SS433
1968-1973 Honda CL350 Scrambler
1970-1970 Yamaha DT1C
1970-1970 Yamaha DT1C-MX
1972-2012 Husqvarna WR250
1973-1973 Yamaha CT3
1973-1973 Yamaha DT3
1973-1977 Suzuki GT250
1974-1975 Suzuki TM100
1974-1976 Honda CB360
1975-1975 Yamaha MX400
1975-1979 Scorpion Whip 440PR
1975-1991 Suzuki RM125
1976-1976 Kawasaki KZ900 LTD
1976-1977 Honda CJ360
1976-1978 Scorpion Range Whip 400PR
1977-1977 Can-Am 175 MX-3
1977-1979 Suzuki TS250
1977-1983 Yamaha IT250
1977-2002 Arctic Cat Z 440
1978-1980 Suzuki GS1000E
1978-1980 Yamaha ET340
1978-1981 Suzuki TS125
1978-1985 Suzuki RM80
1979-1979 Suzuki GS425L
1979-1979 Suzuki GS750L
1979-1981 Kawasaki Drifter 440
1979-1981 Ski-Doo Blizzard 5500
1979-1984 John Deere Sportfire
1980-1981 Suzuki PE400
1980-1981 Yamaha YZ465
1980-1982 Moto-Ski Mirage I
1981-1981 Arctic Cat Jag 4000
1981-1983 Kawasaki KZ1100A
1981-1983 Ski-Doo Blizzard 5500 MX
1981-1988 Husqvarna XC250
1982-1982 Kawasaki AR50
1982-1982 Ski-Doo Blizzard 9500
1982-1982 Suzuki GS550M
1982-1983 Kawasaki KZ1000R Lawson Replica
1982-1983 Kawasaki KZ1100D Spectre
1982-1983 Ski-Doo Nordik
1982-1983 Suzuki GS1100G
1983-1983 Kawasaki KZ750F LTD Shaft
1983-1986 Husqvarna CR500
1984-1988 Ski-Doo Safari 377
1984-1988 Yamaha ET340 Enticer 340
1985-1985 Yamaha PZ480E Phazer E
1985-1986 Yamaha YTZ250 Tri-Z
1986-1987 Ski-Doo Skandic 377R
1986-1988 Husqvarna AE430
1972-1972 Yamaha XS2
1973-1973 Honda CB350G Super Sport
1973-1975 John Deere JDX8
1973-1975 Yamaha SR643
1974-1974 Sno-Jet Astro SS 440
1974-2014 Yamaha YZ250
1975-1976 Sno-Jet SST F/A 340
1975-1976 Triumph Trident 750 T160V
1975-1977 Honda MR175
1976-1976 Yamaha YZ175
1976-1978 John Deere Cyclone 340
1976-1978 Yamaha EX340
1976-1979 Yamaha IT400
1976-1981 Yamaha EX440
1976-1983 Yamaha YZ80
1977-1977 Arctic Cat Z 250
1977-1977 Kawasaki Astro 340
1977-1978 Arctic Cat Pantera 5000 F/C
1977-1979 Kawasaki KE250
1977-1981 Yamaha SRX440
1977-1983 Kawasaki KZ1000A/J
1978-1979 Suzuki PE175
1978-1980 Kawasaki KZ1000D Z1R
1979-1979 Scorpion Sting 400
1979-1981 Arctic Cat El Tigre 6000 L/C
1980-1980 Can-Am 125 MX-6
1980-1980 Kawasaki Drifter 340F/A
1980-1981 Arctic Cat Pantera ES (Electric Start)
1980-1981 Ski-Doo Blizzard 9500 Plus
1980-1981 Suzuki GS1000GL
1980-1983 Yamaha SR540
1980-1985 Honda CR80R
1981-1981 Arctic Cat Panther West
1981-1983 Suzuki GS450TX
1982-1984 Kawasaki KLT250
1982-1984 Yamaha ET340T Enticer 340T
1983-1983 Kawasaki KZ750K LTD Belt
1983-1983 Suzuki GS1100GL
1983-1984 John Deere Sprintfire
1983-1984 Kawasaki ZX1100 GPZ
1984-1984 Ski-Doo SS25
1973-1976 Sno-Jet SST 440
1974-1974 Yamaha DT360
1974-1975 Moto-Ski Chimo 440
1974-1975 Scorpion Super Stinger 400
1974-1975 Yamaha GPX338
1975-1975 Scorpion Whip 400PR
1975-1976 Husqvarna CR360
1975-1976 Yamaha XS650
1976-1976 Rupp Magnum 440
1976-1976 Yamaha GP300
1976-1977 Husqvarna Automatic 360
1976-1977 Suzuki RM370
1976-1979 Scorpion Whip 440PS
1976-1984 John Deere Liquifire 440
1977-1977 Scorpion Range Whip Sting 440PR
1977-1977 Yamaha DT100
1977-1978 Arctic Cat Pantera 5000 F/A
1977-1978 Suzuki GS400X
1977-1979 Suzuki GS550
1977-1980 Husqvarna CR390
1978-1982 John Deere Spitfire 340
1978-1982 Kawasaki Intruder 440
1978-2005 Kawasaki KZ1000C/P Police
1978-2007 Honda CR250R
1979-1979 Scorpion Whip 440 TK
1979-1979 Scorpion Whip 440 TKX
1979-1981 Moto-Ski Super Sonic
1979-1981 Yamaha ET300
1979-1991 Kawasaki KX80
1979-2007 Honda CR125R
1980-1981 Ski-Doo Blizzard 7500 Plus
1980-1981 Suzuki GS450S
1981-1983 Yamaha EC340
1981-1984 Honda FL250 Odyssey
1982-1984 John Deere Snowfire
1982-1985 Suzuki GS450GA
1982-2001 Kawasaki KE100
1983-1983 Kawasaki KZ1100L LTD Shaft
1983-1983 Ski-Doo Skandic 277
1983-1984 Honda CR60R
1983-1984 Yamaha ET300 Enticer 300
1983-2003 Kawasaki KX60
1984-1984 Husqvarna AE500
1984-1984 KTM 420 MXC
1984-1985 Kawasaki ZN1100B LTD
1984-1988 Yamaha EC340 Excel III
1988-1992 Arctic Cat Cheetah Touring
1989-1990 Ski-Doo Formula Plus LT
1989-1991 Arctic Cat El Tigre EXT Mountain Cat
1989-1998 Suzuki RMX250
1991-1991 Husqvarna WXE 260
1991-1993 Arctic Cat Lynx Deluxe
1992-1993 Arctic Cat EXT 550
1992-1993 Arctic Cat Jag AFS LT 1 Speed
1992-1993 Polaris SL 650
1992-1995 Kawasaki JS750 750SX
1992-1997 Arctic Cat Jag Deluxe
1992-1997 Husqvarna WXC 250
1993-1993 Arctic Cat EXT 580 Z
1993-1994 Arctic Cat Wildcat Mountain Cat EFI
1993-1995 Ski-Doo Formula MX Z
1994-1994 Kawasaki JH750 XiR
1994-1995 Polaris 300 2×4
1994-1996 Yamaha VX600DX VMAX 600 DX
1994-1997 Polaris Big Boss 400L 6×6
1994-2007 Polaris Super Sport
1995-1995 Yamaha VX800ST VMAX-4 ST
1995-1996 Arctic Cat Wildcat Touring
1995-1997 Polaris Wide Trak GT
1995-1998 Arctic Cat Bearcat 440
1995-1999 Polaris Trail
1995-2000 Arctic Cat Bearcat 340
1995-2000 Ski-Doo Formula S
1995-2000 Ski-Doo Touring E
1995-2000 TM MX80
1995-2001 Arctic Cat ZRT 800
1996-1996 Yamaha VX600ST VMAX 600 Mountain Max
1996-1996 Yamaha VX800ST VMAX-4 Mountain Max
1996-1997 Polaris SLT 700
1996-1997 Polaris Ultra SP
1996-1997 Polaris Xpress 400L
1996-1998 Ski-Doo MX Z 583
1996-1998 Yamaha VT480TR Venture TR
1984-1985 Kawasaki ZN700A LTD
1984-1985 Kawasaki ZX750E Turbo
1985-1987 Polaris 600
1985-1991 Polaris 400
1985-1992 Suzuki LT250R QuadRacer
1987-1987 Polaris Sprint
1987-1987 Ski-Doo Tundra LTS
1987-1989 Yamaha PZ480E Phazer Deluxe
1987-1990 Yamaha EX570 Exciter
1988-1990 Yamaha DT50
1988-1991 Ski-Doo Nordik 60
1989-1989 Ski-Doo Safari Escapade
1989-1990 Yamaha ET400TR Enticer LTR
1989-1995 Ski-Doo Formula Mach 1
1989-1998 Arctic Cat Cougar Mountain Cat
1990-1990 Arctic Cat El Tigre EXT Special
1990-1991 Arctic Cat Panther Mountain Cat
1990-1992 KTM 300 TXC
1990-1996 Arctic Cat Wildcat Mountain Cat
1991-1992 Arctic Cat EXT Special
1991-1992 Arctic Cat Wildcat EFI Mountain Cat
1991-1993 Arctic Cat Wildcat
1991-1993 ATK 406 MX
1991-1993 Ski-Doo Formula Plus XTC
1991-1993 Yamaha EX570 Exciter II
1991-1993 Yamaha EX570E Exciter II LE
1991-1996 Arctic Cat Panther Deluxe
1992-1992 Yamaha WR200
1992-1993 Yamaha WR500
1992-1999 Polaris XLT SP
1993-1996 Polaris Storm SKS
1993-2002 Arctic Cat Thundercat
1994-1994 Ski-Doo Tundra II
1994-2001 Yamaha VX500 VMAX 500
1995-1995 Ski-Doo Formula STX LT
1995-1996 Arctic Cat Bearcat 550
1995-1997 Sea-Doo HX
1987-1987 Ski-Doo Escapade
1987-1988 Husqvarna XC430
1987-1988 Kawasaki KXF250 Tecate 4
1987-1990 Ski-Doo Formula MX LT
1987-1990 Suzuki LT500R QuadRacer
1987-2006 Yamaha YFZ350 Banshee
1988-1989 Yamaha EX570E Exciter Deluxe
1988-1990 ATK 250
1988-1991 Ski-Doo Nordik 50
1988-1995 Ski-Doo Alpine II
1988-1999 Arctic Cat Jag 340 Deluxe
1988-2006 Yamaha YFS200 Blaster
1990-1990 Honda NS50F
1990-1990 Kawasaki KD80
1990-1991 Arctic Cat Jag AFS Long Track
1990-1991 KTM 300 MX
1990-1991 Ski-Doo Formula Mach 1 XTC
1990-1992 KTM 300 DXC
1991-1991 Ski-Doo Cheyenne
1991-1991 Ski-Doo Formula Plus MX
1991-1996 ATK 406 CC
1991-1998 Polaris Lite
1992-1992 KTM 300 SX
1992-1992 Ski-Doo Formula XTC E
1992-1992 Ski-Doo Formula XTC II
1992-1997 Husqvarna WXC 360
1993-1993 Polaris SL 750
1993-1993 Ski-Doo Safari Rally
1993-1993 Yamaha EX570ST Exciter II ST
1993-1993 Yamaha EX570SX Exciter II SX
1993-1996 KTM 550 MXC
1993-1997 Kawasaki JH750 Super Sport XI
1993-1997 Polaris XLT SKS
1993-1998 Arctic Cat ZR 440
1994-1994 Ski-Doo Formula MX ZX
1994-1995 Polaris 650 RXL Touring
1994-1996 Arctic Cat EXT EFI
1994-1996 Yamaha VX600E VMAX 600 LE
1994-1998 Ski-Doo Summit 583
1994-1999 Arctic Cat ZR 700
1994-1999 Polaris 440 XCR SP
1995-1995 Ski-Doo Skandic Ski Hill Special
The 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
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