Spark Plug Calculator
Find the right spark plugs for your vehicle based on engine specifications, modifications, and driving conditions. Calculate gap, heat range, and plug type recommendations.
Step 1: Vehicle Details
Understanding Spark Plug Requirements
Different engines require specific spark plug types, heat ranges, and gaps. Higher compression and performance engines typically need colder plugs with smaller gaps, while standard engines use hotter plugs with wider gaps.
Step 2: Driving Conditions
About Heat Range
Spark plug heat range refers to how quickly the plug transfers heat from the firing tip to the cylinder head. Hotter plugs retain more heat (for low-speed driving), while colder plugs dissipate heat faster (for high-performance engines).
Spark Plug Recommendations
Recommended Spark Plug Type
Spark Plug Type Comparison
| Plug Type | Best For | Lifespan | Price Range |
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Technical Specifications
Spark Plug Gap Guide
Gap Adjustment Formula
Base gap = 0.035″ for standard ignition systems. For performance systems: subtract 0.003-0.005″. For forced induction: subtract additional 0.002-0.004″. Always check manufacturer specifications for your specific vehicle.
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