tr6tuga Posted September 16, 2020 Report Share Posted September 16, 2020 Maybe a dum question, but should I set the gap acording to bb when using a iridium tip sparkplug? Quote Link to post Share on other sites
RobH Posted September 16, 2020 Report Share Posted September 16, 2020 It isn't the spark plug type which determines the gap required, it's really the coil. If you have a 'sports' coil you could safely go a bit wider than the book figure - say .030" (0.76mm) but whether there is any advantage in doing that is debatable. Using a wider plug gap with a standard coil can shorten its life, because the higher peak voltages required to break down the gap will put more stress on the insulation of the windings. Quote Link to post Share on other sites
Mike C Posted September 16, 2020 Report Share Posted September 16, 2020 2 hours ago, tr6tuga said: Maybe a dum question, but should I set the gap acording to bb when using a iridium tip sparkplug? I use iridium tipped plugs in an old Holden V8 gapped as is in the box. In this V8 the back plugs near the firewall are a pain to change. It's too risky trying to regap the fine electrodes. I don't use these plugs in the TR6 as I'm happy with the anti fouling properties of my NGK BUR6ET's. Quote Link to post Share on other sites
Michael Mckiernan Posted September 17, 2020 Report Share Posted September 17, 2020 Agree with Mike C NGK BUR6ET's. very good plugs . Mick. Quote Link to post Share on other sites
DRD Posted September 17, 2020 Report Share Posted September 17, 2020 12 hours ago, tr6tuga said: Maybe a dum question, but should I set the gap acording to bb when using a iridium tip sparkplug? Didn't think you were supposed to change the gap with these? Just use straight out of the box. Quote Link to post Share on other sites
tr6tuga Posted September 17, 2020 Author Report Share Posted September 17, 2020 Thankyou whise gents I ll leave the gap as it came I do have a sports coil Quote Link to post Share on other sites
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