Hey guys,
My car: 1990 Honda Accord LX Sedan 4Auto.
I am trying to improve my car gas mileage and was wondering how the spark plugs wires come into play. I have used a voltmeter set to 20Kohm. The brands that I used to measure and compare are Honda OEM brand Sumitomo, NGK, and Ebay brand Performance Racing red wires. The wires size for Sumitomo and NGK is 7mm and the red Ebay Performance Racing wires are 9mm. The length for the wires are about the same for the corresponding cylinders. The measurements are below, the Wire# correspond to the cylinder wire/number:
-Sumitomo (Honda OEM wires)--Only $25 on Ebay new.
Wire#4--7.11
Wire#3--10.12
Wire#2--10.58
Wire#1--13.00
-NGK---About $35 new on Ebay.
Wire#4--4.29
Wire#3--5.64
Wire#2--5.81
Wire#1--6.68
-Red Performance Racing--New on Ebay about $40, which I bought 4 years ago.
Wire#4--0.25
Wire#3--0.38
Wire#2--0.42
Wire#1--0.53
Here are the questions:
1) Honda's service manual says the specs should be less than 25Kohm. Base on this info, this is a huge difference. Is the lower resistance better for efficiency and gas mileage? Or the higher resistance is better?
2) The wires seems consistent as the length increases across brands. Out of these 3 sets, I don't think any of the wires are defective physically. The set I was using is NGK. The Sumitomo set is the original ones from the car.
3) What are the resistance on your wires?
So maybe you guys can list your model and brand of wires that you have and gas mileage. If you have your own measurement, please list so we can compare.
Thanks.
My car: 1990 Honda Accord LX Sedan 4Auto.
I am trying to improve my car gas mileage and was wondering how the spark plugs wires come into play. I have used a voltmeter set to 20Kohm. The brands that I used to measure and compare are Honda OEM brand Sumitomo, NGK, and Ebay brand Performance Racing red wires. The wires size for Sumitomo and NGK is 7mm and the red Ebay Performance Racing wires are 9mm. The length for the wires are about the same for the corresponding cylinders. The measurements are below, the Wire# correspond to the cylinder wire/number:
-Sumitomo (Honda OEM wires)--Only $25 on Ebay new.
Wire#4--7.11
Wire#3--10.12
Wire#2--10.58
Wire#1--13.00
-NGK---About $35 new on Ebay.
Wire#4--4.29
Wire#3--5.64
Wire#2--5.81
Wire#1--6.68
-Red Performance Racing--New on Ebay about $40, which I bought 4 years ago.
Wire#4--0.25
Wire#3--0.38
Wire#2--0.42
Wire#1--0.53
Here are the questions:
1) Honda's service manual says the specs should be less than 25Kohm. Base on this info, this is a huge difference. Is the lower resistance better for efficiency and gas mileage? Or the higher resistance is better?
2) The wires seems consistent as the length increases across brands. Out of these 3 sets, I don't think any of the wires are defective physically. The set I was using is NGK. The Sumitomo set is the original ones from the car.
3) What are the resistance on your wires?
So maybe you guys can list your model and brand of wires that you have and gas mileage. If you have your own measurement, please list so we can compare.
Thanks.
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