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What is the best brand of spark plug wires?
- Editor’s Pick: ACDelco. ACDelco offers a variety of spark plug wire sets for a wide range of applications and vehicles. …
- NGK. …
- MSD. …
- JEGS. …
- Denso. …
Do high performance spark plug wires make a difference?
High performance spark plug wires are made to provide a lower core resistance, a greater resistance to engine heat and chemicals, and a higher degree of radio suppression. … The wires also have heavier outer materials to prevent damage from heat and chemicals, and provide better radio frequency suppression.
How long do NGK Spark plug wires last?
NGK gives them a life expectancy of 40-50k miles. But they have to temper their projections as driving conditions and motor modifications differ. Typically we have found you can expect 60,000 to 80,000 miles on an unaltered motor.
What’s better 7mm or 8mm spark plug wires?
8mm spark plug wires are a heavier gage wire than the 7mm type. However, there is more to it than just the difference in the thickness. The thicker wire has a thicker core. … A more robust core provides a lower resistance path for the power, thereby allowing more power to reach the spark plugs.
Can spark plug wires add horsepower?
In short, yes, in some situations spark plugs can increase horsepower. The theory behind spark plugs increasing horsepower is that by providing more spark to the firing tip of the spark plug, it will (and does) combust more fuel.
How do I choose spark plug wires?
Size is perhaps the last thing to consider when it comes to spark plug wires. 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.
Does it matter what spark plug wires you use?
Does size matter? For overall spark transfer, not necessarily. However, thicker wires, like these Moroso Super Max II 11mm wires, can provide added RFI suppression and insulation. … That’s why it’s important to select a good quality set of spark plug ignition wires to deliver juice to your spark plugs.
Will bad spark plug wires throw a code?
Bad spark plugs can cause your engine to misfire. The engine’s computer uses sensors to detect these misfires and will create a code that turns on the check engine light.
Can spark plug wires cause rough idle?
A rough idling engine can be caused by spark plugs or spark plug wires. … If the damage is bad enough, you may also notice your engine running rough while driving.
How many years do spark plug wires last?
The ignition cables on a car are made to last about 60,000 miles before they have to be replaced. In some cases, the wires will need to be replaced due to the rubber boots on the end getting damaged and now allowing for a good connection with the spark plugs.
How often do spark plug wires need to be changed?
That’s why it pays to replace your spark plug wires before they wear out. We recommend changing them during spark plug changes (whenever your owner’s manual recommends, usually between 60,000 and 100,000 miles).
What are the symptoms of bad plug wires?
Signs of Bad Spark Plug Wires
- Visible Damage on the Spark Plug Wires. Spark plug wires may start to dry out over time, so look for cracks in the insulation. …
- The Engine is Idling Rough. The car should have a smooth and steady idle, but the engine may develop a rough idle if the spark plug wires are bad. …
- Engine Hesitation. …
- Engine Misfiring.
How much resistance should a spark plug wire have?
Simply attach or hold a meter probe on each end of the cable and read the total resistance on the meter. The Society of Automotive Engineers suggests the maximum resistance should be 12,000 ohms-per-foot.
Are MSD plug wires good?
5.0 out of 5 stars Excellent product. Best wires for the 5.3 LS1 that you can buy! … These MSD plug wires are much nicer than any I’ve used before!
What is high tension spark plug wire?
High tension leads or high tension cables or spark plug wires or spark plug cables are the wires that connect a distributor, ignition coil, or magneto to each of the spark plugs in some types of internal combustion engine. … High tension leads, like many engine components, wear out over time.