jas98 Member 1,043 Member For: 12y 5m 2d Gender: Male Location: Maryborough Qld Posted 13/08/21 10:05 PM Share Posted 13/08/21 10:05 PM Hi. So. I changed spark plugs with factory plus and factory gapped (1.1mm) for a ba xr6t stock tune. Ran ok....when giveing it heaps went fine no issues etc. Couple weeks later I decided to try (experiment) just normal copper plugs with a 1mm gap. First drive I could feel it wanted to go better (very slightly) so took it on to high way and from a stand still have it a bit and it went pretty good then boost cut and limp mode (over boosted) so drove it steady and came good. Seems to hold 6psi then spikes . To 9ish Put other plugs back and seems ok So decided next day I'll try the copper plugs again and did it again.. Question.....can copper plugs cause this 😂😂 everything was fine and checked out fine Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,055 Member For: 16y 8m 15d Gender: Male Location: Melbourne Posted 14/08/21 12:41 AM Share Posted 14/08/21 12:41 AM never heard of such a thing... but seems like it's happening for you haha... play around with it and see if you can repeat it in different weather. Link to comment Share on other sites More sharing options...
jas98 Member 1,043 Member For: 12y 5m 2d Gender: Male Location: Maryborough Qld Posted 14/08/21 10:09 AM Author Share Posted 14/08/21 10:09 AM Haha yeah I'm open to all opinions etc. Just weired. Maybe when I'm swapping them I'm hitting some wireing or something. ..ah well I'll sort it out. Atm it's running ok. Prob just weather here as some days it's cold and dense air and others it's just normal Haha Link to comment Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 15,984 Member For: 9y 10m 25d Gender: Male Location: South Australia Posted 14/08/21 10:18 AM Share Posted 14/08/21 10:18 AM 7 minutes ago, jas98 said: I'm open to all opinions etc Put 5 litres of E85 or methanol in your tank. It has nothing to do with spark plugs but it'll make it go better. 1 Link to comment Share on other sites More sharing options...
jas98 Member 1,043 Member For: 12y 5m 2d Gender: Male Location: Maryborough Qld Posted 15/08/21 06:15 AM Author Share Posted 15/08/21 06:15 AM 😂 Link to comment Share on other sites More sharing options...
jas98 Member 1,043 Member For: 12y 5m 2d Gender: Male Location: Maryborough Qld Posted 01/07/22 09:09 AM Author Share Posted 01/07/22 09:09 AM Update....so weired but it hasn't done it since I've kept the irridiums 1.1 mm gaped plugs in. I even tried it again couple weeks later with 1 mm copper plugs and it overboosted....old plugs back and fine. It's always used to have a overboost issue. When randomly overboosted but these plugs made it do it instantly O Link to comment Share on other sites More sharing options...
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