Does spark plug wire length matter?
Nope – it doesn’t.
What size spark plug wires should I use?
Most manufacturers recommend an 8 or 8.5mm plug wire on most applications. Exceptions would be an all-out race car or a street rod where EMI/RFI suppression is not a concern, but weight and appearance are.
Can you lengthen a spark plug wire?
The good news is that you can always cut and crimp your wires to the length you need. If done incorrectly it may cause a space to occur between the spark plug wire conductor and its terminal.
What happens if you use a shorter spark plug?
Broken electrodes A spark plug that is too long can cause extensive damage to your engine while a short spark plug can cause poor gas mileage and spark plug fouling.
What happens if spark plug is too short?
A spark plug that is too short will cause your engine to buck. The spark won’t ignite your fuel correctly and can cause poor gas mileage, plus prompt your check engine lights.
Do thicker spark plug wires make a difference?
That thicker wire core provides a lower operating resistance, allowing more spark energy at the spark plug. This thicker core, once wrapped in the insulating material and outer jacket, is what dictates the larger overall spark plug wire diameter.
What is the difference between 7mm and 8mm spark plug wires?
8mm spark plug wires are a heavier gage wire than the 7mm type. The thicker wire has a thicker core. The core is the part of the wire that brings power to the spark plugs. A more robust core provides a lower resistance path for the power, thereby allowing more power to reach the spark plugs.
Do aftermarket spark plug wires make a difference?
Benefits of Spark Plug Wires Stronger and more durable cables hold the spark until it finds its way to the spark plug to boost the performance of your vehicle. Improve gas mileage. High-quality wires will allow the spark plugs to start faster and keep your engine running more effectively.
What is the effect of fitting a spark plug with a thread that is too long?
Broken electrodes If the electrodes are broken off or flattened, it is likely that the wrong spark plugs are installed. A spark plug that is too long can cause extensive damage to your engine while a short spark plug can cause poor gas mileage and spark plug fouling.