The N20 runs a NGK 97506 Spark Plug factory, below is a chart with information based on observed results using this plug and its possible upgrade/ replacement alternatives
B4x Gen 1 Plugs:
Plug Model | Heat Range (Based On NGK Standard) | Pre-Ignition / Detonation Protection | Ground Strap Projection Type | Firing Vertical Position In Chamber (mm) | Electrode Material | Compatible Coils | Default Spark Plug Gap (mm) (convert to inches) |
---|---|---|---|---|---|---|---|
NGK 94201 | 8 | Standard | Standard Projection | 0 | Iridium | OEM | 0.75 |
NGK 93560 | 9 | Improved | Standard Projection | -1.5 (Sits further from the piston / higher) | Iridium | OEM | 0.7 |
BRISK 2MOER12YS | 8 | Improved | Standard Projection | -1.15 (Sits further from the piston / higher) | Silver | OEM | 0.5 |
BRISK 2MOER10S | 9 | Enhanced | Standard Projection | -2 (Sits further from the piston / higher) | Silver | OEM | 0.4 |
B4xTU Plugs:
Plug Model | Heat Range (Based On NGK Standard) | Pre-Ignition / Detonation Protection | Ground Strap Projection Type | Firing Vertical Position In Chamber (mm) | Electrode Material | Compatible Coils | Default Spark Plug Gap (mm) (convert to inches) |
---|---|---|---|---|---|---|---|
NGK 95248 | 8 | Standard | Standard Projection | 0 | Iridium | OEM | 0.75 |
NGK 96206 | 8 | Standard | Standard Projection | 0 | Iridium | OEM | 0.8 |
NGK SILZKGR8G8S (Latest Replaces 96206 & 95248 Currently Only Available From BMW) | 8 | Enhanced | Standard Projection | 0 | Iridium | OEM | 0.75 |
NGK 93560 | 9 | Improved | Standard Projection | -1.85 (Sits further from the piston / higher) | Iridium | OEM | 0.7 |
BRISK 2MOER12YS | 8 | Improved | Standard Projection | -1.5 (Sits further from the piston / higher) | Silver | OEM | 0.5 |
BRISK 2MOER10S | 9 | Enhanced | Standard Projection | -2.35 (Sits further from the piston / higher) | Silver | OEM | 0.4 |
B48E Plugs:
Plug Model | Heat Range (Based On NGK Standard) | Pre-Ignition / Detonation Protection | Ground Strap Projection Type | Firing Vertical Position In Chamber (mm) | Electrode Material | Compatible Coils | Default Spark Plug Gap (mm) (convert to inches) |
---|---|---|---|---|---|---|---|
NGK 95248 | 8 | Standard | Standard Projection | 0 | Iridium | OEM | 0.75 |
NGK 96206 | 8 | Standard | Standard Projection | 0 | Iridium | OEM | 0.8 |
NGK SILZKGR8G8S (Latest Replaces 96206 & 95248 Currently Only Available From BMW) | 8 | Enhanced | Standard Projection | 0 | Iridium | OEM | 0.75 |
NGK 93560 | 9 | Improved | Standard Projection | -1.85 (Sits further from the piston / higher) | Iridium | OEM | 0.7 |
BRISK 2MOER12YS | 8 | Improved | Standard Projection | -1.5 (Sits further from the piston / higher) | Silver | OEM | 0.5 |
BRISK 2MOER10S | 9 | Enhanced | Standard Projection | -2.35 (Sits further from the piston / higher) | Silver | OEM | 0.4 |
Pre-Ignition / Detonation Protection Explained:
Why Projection Type Matters:
Projection is how far from the body / shell of the plug the ground strap and conversely electrode extend. The longer or further away from the plug body they are the better spark efficiency but the greater risk of plug failure or potential engine damage from a hot ground strap causing pre-ignition.
How Much Boost Can These Plugs Handle?
Plug life can vary depending on the application at hand, but typically here are a few things that can reduce plug life:
B4x Owners Attention! → The OEM Coils output some of the highest amounts of energy observed in the industry, there is no need to gap the plugs at all unless you are running extremely high power levels and your tuner has advised you gap the plug.
Plug Recommendations:
Plug Model | Ideal Max Service Life | Max Ideal Boost To Promote Ideal Service Life | Reasoning? |
---|---|---|---|
NGK 95248 | 25,000 KM @ 0.022 inch Gap | OEM Gap 50,000 KM | 30 PSI @ Sea Level | heat range limitations in the ceramic surviving long highly abusing loads |
NGK 96206 | 25,000 KM @ 0.022 inch Gap | OEM Gap 50,000 KM | 30 PSI @ Sea Level | heat range limitations in the ceramic surviving long highly abusing loads |
NGK SILZKGR8G8S (Latest Replaces 96206 & 95248) | 25,000 KM @ 0.022 inch Gap | OEM Gap 50,000 KM | 30 PSI @ Sea Level | heat range limitations in the ceramic surviving long highly abusing loads |
NGK 94201 | 25,000 KM @ 0.022 inch Gap | OEM Gap 50,000 KM | 30 PSI @ Sea Level | heat range limitations in the ceramic surviving long highly abusing loads |
NGK 93560 | 25,000 KM @ 0.022 inch Gap | OEM Gap 50,000 KM | 40 PSI @ Sea Level | heat range limitations in the ceramic surviving long highly abusing loads |
BRISK 2MOER12YS | OEM Gap 15,000 KM | 30 PSI @ Sea Level | heat range limitations in the ceramic surviving long highly abusing loads |
BRISK 2MOER10S | OEM Gap 10,000 KM | 40 PSI @ Sea Level | heat range limitations in the ceramic surviving long highly abusing loads |
Video Explainer: