What does changing spark plug gap do?
The larger the gap, the more voltage is needed to jump the gap. Most experienced tuners know that increasing the gap size increases the spark area exposed to the air-fuel mixture, which maximizes burn efficiency.
What does a gap on a spark plug mean?
A spark plug gap is the distance between the end of the electrode and the base of the spark plug. If your spark plugs aren’t properly gapped, your engine may not burn fuel properly.
How often should you change the spark plug gap?
The spark plug gap adjustment should not be changed more than 3 times and should not exceed .008″ in either direction. Excessive changing of the spark plug gap setting will result in weakening of the spark plug ground electrode and can lead to breakage. Also, the spark plug gap should never exceed .055″ unless pre-set by the manufacturer.
What is the pressure between the spark plug gap and ground electrode?
between the spark plug gap (center electrode and ground electrode). 2) Pressure in the combustion chamber at time of spark discharge – Depends on compression and aspiration of the engine. High compression engines and engines with forced induction have higher combustion chamber pressures at time of spark discharge.
How big is the spark plug gap on a Promod Turbo?
Some applications such as ProMod turbo cars using M1 fuel frequently run a spark plug gap as small as .012″, even though they are equipped with some of the highest output ignition systems providing in excess of 60,000 Volts high current and high mJ power output.
What is a good spark plug gap?
One spark plug manufacturer said a good way to determine the ideal plug gap for an engine is to start out with a modest gap of around.035˝and gradually increase the gap several thousandths at a time until the engine starts to misfire and lose power (or run slower times).
How do I Close a spark plug gap?
To close the gap on a plug, gently tap the plug, electrode first on a hard surface. NGK doesn’t recommend adjusting the plug gap more than .008″ in either direction. Beyond that slight adjustment, the ground electrode and center electrode won’t align properly, hindering spark plug performance and drastically reducing plug life.
What is gap supposed to be on a spark plug?
On a conventional spark plug, it is the area between the center and the ground electrode . As the spark always follow the path of least resistance, spark gap is generally the closest point between the spark plug center electrode and the spark plug ground electrode which is sometimes formed by the spark plug shell itself.
What is the proper spark plug gap?
- Find the gap specifications for your vehicle. You can find the spark plug gap specifications at several locations on your vehicle.
- you do not need to do any cleaning.
- Measure the spark plug gap. The next step is to measure the spark plug gap.
- Adjust the spark plug gap.
- Re-measure the gap.