I have this question also over in the electronic ignition forum, but I would like to here from the -10 people running auto plugs in their IO540s. I’m installing a Surefly and replacing my Bendix, so I need a new harness made. I’m looking at possibly switching to auto plugs from my Tempest fine wire. I have been told there are issues with durability and also performance at altitude with auto plugs, i.e. 10-14K feet.
Since my fine wire only have a couple hundred hours on them, unless I mess one up on the re-gapping, I should be good for at least several hundred more hours on them. But since I need to purchase a new harness, if it’s worth the change to auto plugs, I might as well do it now. Also, what auto plugs are used in the IO 540?
Since my fine wire only have a couple hundred hours on them, unless I mess one up on the re-gapping, I should be good for at least several hundred more hours on them. But since I need to purchase a new harness, if it’s worth the change to auto plugs, I might as well do it now. Also, what auto plugs are used in the IO 540?