Hey guys,

I posted this up in tech/misc but never got a reply, but since these wires are for my itr I know my itr brethren will help me out!

I used a multi meter and tested a set of new NGK he64s (less than 1000 kms) and well used spoon wires, at least 50,000 kms, probably closer to 100,000 kms.

Ngk. Spoon
1: 6.25. 1: 0.712
2: 5.09. 2: 0.625
3. 4.59. 3: 0.502
4. 3.60. 4. 0.411

I tested using a method I found in h-t, and tested every wire 4 times to make sure I was getting the same results. The multi meter was set on auto, please forgive my ignorance but is the lower resistance number better regarding plug wires? They "feel" better, the car runs noticably quieter on a morning start, and idles smoother, the ngks are great but I've tried switching back and forth between each set of wires all last summer and the spoons always seemed to perform slightly better than the ngks. I would alternate each set of wires every week, just regular city driving with some highway driving.

I know this topic has been covered millions of times, I've seen every thread imaginable on it bbut I just need some clarification on the numbers, thanks guys!

 

I have never owned Spoon spark plug wires. But, I know each wire has it's own independence ground wire. Hence, the close to zero readings as compared to the NGK. As far as the "feel" in performance, may be it's in your head. The only way to find out is compare them on a dyno. If you do take this round, come back in and tell us how it goes

 

Thanks for the reply! I don't have access to a dyno unfortunately but from what I read in the thread explaining how to check the resistance using a multi meter, out explained that any reading over 25 meant that it was time to change the wires.

So there way I understood it was that the lower the number the better, and if 25 means that the wires need to be changed, the new wires have 6.xx as the highest reading for the longest wire, so that was my "baseline" numbers for what new wires should have, but after testing the spoon wires I found the numbers were much lower than new NGK wires, and that really surprised me, I was expecting that the spoons would have a higher resistance since they have been well used.

 

I doubt there would be any performance gains between the 2.

 

In general, a lower resistance (in ohms) means you get more current flow, therefore, more power to the spark plug. Ohm's Law states that Current = Voltage/Resistance. And Power = Voltage*Current. Therefore, less resistance gives you more current, which gives you more power.

However, don't correlate more electrical power to mean the same as better engine performance. As stated earlier, a dyno run would prove that.