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MAC : Malaysia Airtrek Club
Timing drop
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<blockquote data-quote="vr2turbo" data-source="post: 1064425870" data-attributes="member: 92229"><p>Yup, the hotter the run then the colder the plug. Normally if mod extra hp to the engine then get colder by one number. Can't remember the actual figure but something like 50bhp, so if 200bhp using No:6, then mod to 250bhp use No:7.</p><p>The thing is Bosch numbering is the other way round. Bigger number hotter the plug....8, 7, 6, 5.....</p><p>Then Denso go by 18, 20, 22....<img src="https://zerotohundred.com/forums/styles/default/xenforo/smilies/banghead.gif" class="smilie" loading="lazy" alt=":banghead:" title="Banghead :banghead:" data-shortname=":banghead:" /></p></blockquote><p></p>
[QUOTE="vr2turbo, post: 1064425870, member: 92229"] Yup, the hotter the run then the colder the plug. Normally if mod extra hp to the engine then get colder by one number. Can't remember the actual figure but something like 50bhp, so if 200bhp using No:6, then mod to 250bhp use No:7. The thing is Bosch numbering is the other way round. Bigger number hotter the plug....8, 7, 6, 5..... Then Denso go by 18, 20, 22....:banghead: [/QUOTE]
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