View Full Version : 5mm spark plug wires... Got any experience with it?

03-01-2016, 3:33 PM
I'm considering running 5mm wires because it will be easier to run down the backbone and under the seat (where I hid my coil) but I've never used it. Anybody here got any experience with it? I'm looking at the Accel Thundersport product, if it makes any difference.

03-01-2016, 10:39 PM
Electronic ignition? if so where is it mounted? I'd worry about radio interference.
Plus I'd run them in a sheath if they are close to the frame. Two sheaths if its a single fire setup.

03-02-2016, 9:01 AM
Yes, Stock HD electronic ignition and coil. Ignition module is in the stock location and the coil is a couple inches away on the other side of a steel bulkhead.

My first concern was also RFI and EMI. That's the main reason I asked for opinions. Sheathing pretty much negates the benefits of the smaller diameter, so I may as well use 8mm at that rate.

03-03-2016, 9:07 AM
I beleive we might be over thinking this. Stock e-ignitions, while they work well, dont come with 8mm wires to begin with, so 5mm should be ok.