THIS GUIDE Suits
- Mitsubishi Lancer Evolution 4, 5, 6, 7 & 8
- Mitsubishi Lancer EVO IV, V, VI, VII, & VIII
Spark Plug Guide
Use the guide below to select a suitable spark plug. Stage 0 - Stock car with no modifications Stage 1 - Car with exhaust, filter, tune and stock turbo (up to 250 kw atw) Stage 2 - Car with larger turbo or dedicated circuit car (up to 400 kw atw) Stage 3 - Car with larger turbo, competition/drag race use only (400+ kw atw)
Stage |
Power Level (ATW) |
Plug Type |
Plug |
RRP ($USD) |
Stage 0 |
Stock |
Standard |
NGK - PGR7A |
$150 USD |
Stage 0 |
Stock |
Iridium |
NGK - BPR7EIX |
$115 USD |
Stage 1 |
up to 250kw |
Iridium |
NGK - BPR8EIX |
$119 USD |
Stage 2 |
up to 400kw |
Racing |
BR8EG |
$83 USD |
Stage 3 |
400kw plus |
Racing |
BR9EG |
$80 USD |
NOTE: Plugs with a colder heat range are less resistant to fouling and can result in poor cold starting in cold climates.
NGK Spark Plug Codes
KEYWORDS: D E S I G N S Y M B O L S: SP A R K P L U G S B Thread Diameter A: 18 mm B: 14 mm C: 10 mm D: 12 mm J: 12 mm Plug Type I: Iridium Platinum L: Thread Reach 26.5mm P: Premium Platinum Z: Extended Gap Metal Shell Size F: ø 14, 19mm (3/4”) Reach, 16mm (5/8”) Hex. G: ø 14, 19mm (3/4”) Reach, 20.6mm (13/16”) Hex. J: ø 12, 19mm (3/4”) Reach, 19mm Hex. M: ø 10, 19mm (3/4”) Reach, 16mm (5/8”) Hex. T: Tapered Seat ø 14, 17.5mm Reach, 16mm (5/8”) Hex. PTR5A-13: ø 14, 25mm Reach, 16mm (5/8”) Hex. Construction R: Resistor Firing End Contruction A, B, C...: Special Design Heat Rating Numbers 2 Hot 11 Cold Construction (ONE OR MORE LETTERS MAY BE COMBINED) C: Hex Size 5/8” K: Hex Size 5/8” Projected Tip (ISO) M: Compact Type P: Projected Insulator Type R: Resistor Type Surface or Semi- U: Surface Discharge Type Z: Inductive Resistor Thread Reach E: 19 mm (3/4”) EF: Tapered Seat 17.5 mm (.708” Reach) FS: Tapered Seat 10.9 mm (.460”) H: 12.7 mm (1/2”) EH: Partial thread 19 mm (3/4”Total Reach) 12.7 mm (1/2”Total Thread) L: 11.2 mm (7/16”) S: 9.5 mm (3/8”) Reach Z: 21 mm NO SYMBOL: 18mmø = 12 mm Reach 14mmø = 9.5 mm (3/8”) Reach Firing End Construction A: B: C: CM: E: ES: F: G: G-G: GV: K: L: LM: M: N: P: Q: R: S: T: U: V: VX: W: X: Y: Z: Special Design Special Design Low Angle Ground Electrode Compact type, low angle ground electrode V-Grooved center electrode (14mm only) 1.5mm Insulator Standard 3/4” Thread Reach (2.5mm) center electrode Tapered Seat Fine wire nickel alloy center electrode Copper core ground electrode Gold-palladium center electrode Special Construction of V-Type. Racing use 2-Ground electrodes Half heat range, (See spec. chart) Compact type for Lawn Mower 2-Ground electrodes For Mazda Rotary Eng. Special Side electrode Premium Platinum 4-Ground electrode Special Ground electrode Standard 2.5mmø center electrode 3-Ground electrode Semi-surface discharge Fine wire gold palladium center electrode High performance platinum Tungsten electrode Booster gap V-Grooved center electrode (14mm only) 2.5mm Insulator Thick 2.9mmø center electrode
K Spark Plug Codes
D E S I G N S Y M B O L S: SP A R K P L U G S B Thread Diameter A: 18 mm B: 14 mm C: 10 mm D: 12 mm J: 12 mm Plug Type I: Iridium Platinum L: Thread Reach 26.5mm P: Premium Platinum Z: Extended Gap Metal Shell Size F: ø 14, 19mm (3/4”) Reach, 16mm (5/8”) Hex. G: ø 14, 19mm (3/4”) Reach, 20.6mm (13/16”) Hex. J: ø 12, 19mm (3/4”) Reach, 19mm Hex. M: ø 10, 19mm (3/4”) Reach, 16mm (5/8”) Hex. T: Tapered Seat ø 14, 17.5mm Reach, 16mm (5/8”) Hex. PTR5A-13: ø 14, 25mm Reach, 16mm (5/8”) Hex. Construction R: Resistor Firing End Contruction A, B, C...: Special Design Heat Rating Numbers 2 Hot 11 Cold Construction (ONE OR MORE LETTERS MAY BE COMBINED) C: Hex Size 5/8” K: Hex Size 5/8” Projected Tip (ISO) M: Compact Type P: Projected Insulator Type R: Resistor Type Surface or Semi- U: Surface Discharge Type Z: Inductive Resistor Thread Reach E: 19 mm (3/4”) EF: Tapered Seat 17.5 mm (.708” Reach) FS: Tapered Seat 10.9 mm (.460”) H: 12.7 mm (1/2”) EH: Partial thread 19 mm (3/4”Total Reach) 12.7 mm (1/2”Total Thread) L: 11.2 mm (7/16”) S: 9.5 mm (3/8”) Reach Z: 21 mm NO SYMBOL: 18mmø = 12 mm Reach 14mmø = 9.5 mm (3/8”) Reach Firing End Construction A: B: C: CM: E: ES: F: G: G-G: GV: K: L: LM: M: N: P: Q: R: S: T: U: V: VX: W: X: Y: Z: Special Design Special Design Low Angle Ground Electrode Compact type, low angle ground electrode V-Grooved center electrode (14mm only) 1.5mm Insulator Standard 3/4” Thread Reach (2.5mm) center electrode Tapered Seat Fine wire nickel alloy center electrode Copper core ground electrode Gold-palladium center electrode Special Construction of V-Type. Racing use 2-Ground electrodes Half heat range, (See spec. chart) Compact type for Lawn Mower 2-Ground electrodes For Mazda Rotary Eng. Special Side electrode Premium Platinum 4-Ground electrode Special Ground electrode Standard 2.5mmø center electrode 3-Ground electrode Semi-surface discharge Fine wire gold palladium center electrode High performance platinum Tungsten electrode Booster gap V-Grooved center electrode (14mm only) 2.5mm Insulator Thick 2.9mmø center electrode
WIDE GAP – 8 0.8mm (.032”) 9 0.9mm (.036”) 10 1.0mm (.040”) 11 1.1mm (.044”) 13 1.3mm (.052”) 14 1.4mm (.055”) 15 1.5mm (.060”) 20 2.0mm (.080”)
|