2025 Miata Spark Plug Gap. Tuning up your car How to set proper spark plug gap YouTube Boosted applications, especially higher boost, might need a tighter gap. Spark plug gap for a Normally Aspirated engine is .044 (1.1mm).
Better Performance with Upgraded Miata Spark Plugs Low Offset from low-offset.com
Maintenance Intervals: For NA and NB models with spark plug wires, it is recommended to replace them every 60,000 miles or sooner if signs of degradation or damage are present I went with 0.6 at 252 whp (e85), managed to get away with 0.8 at 225 whp (petrol)
Better Performance with Upgraded Miata Spark Plugs Low Offset
I went with 0.6 at 252 whp (e85), managed to get away with 0.8 at 225 whp (petrol) 20297 posts · Joined 2007 Add to quote; Only show this user. Only got the CEL around 70mph in fifth on the highway
MazdaMX5MiataSparkPlugsReplacementGuide013. As for the torque figure for tightening the plugs, a general rule of thumb is about 1/2 turn after the plugs are seated by hand, this will crush the fresh seal washers to about the right torque. New plugs are generally set to 1 to 1.1 mm gap at the factory, (40 to 45 thou)
How to change Mazda MX5/Miata stuborn spark plugs YouTube. We received this message from Ryan Ruston: I recently had a bad experience with the coil packs on my 1995 Miata I went with 0.6 at 252 whp (e85), managed to get away with 0.8 at 225 whp (petrol)