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Technical Guide: How to tune the VAFC
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<blockquote data-quote="shiroitenshi" data-source="post: 1892771" data-attributes="member: 27518"><p>Hahaha.. but isn't that's why people run piggybacks in the first place? So they have a starting baseline for tuning? :P</p><p></p><p>For me.. tuning is still a trial and error affair due to the fact that we can't really calculate airflow due to various other factors. But it's important to keep in mind what's going to work and what's not. </p><p></p><p>That's why a conservative tune usually causes less problems.. sure.. you can tune it to the max for sea level.. but I'm not sure it won't cause problems when the car and engine goes up the mountain (higher than sea level) for the west -east travel up north. :P</p><p></p><p>Hmm.. damn.. forgot to shine the timing light when I tuned the VAFC... should have got it confirmed then as to how much air correction % increase or retard ignition advance.</p></blockquote><p></p>
[QUOTE="shiroitenshi, post: 1892771, member: 27518"] Hahaha.. but isn't that's why people run piggybacks in the first place? So they have a starting baseline for tuning? :P For me.. tuning is still a trial and error affair due to the fact that we can't really calculate airflow due to various other factors. But it's important to keep in mind what's going to work and what's not. That's why a conservative tune usually causes less problems.. sure.. you can tune it to the max for sea level.. but I'm not sure it won't cause problems when the car and engine goes up the mountain (higher than sea level) for the west -east travel up north. :P Hmm.. damn.. forgot to shine the timing light when I tuned the VAFC... should have got it confirmed then as to how much air correction % increase or retard ignition advance. [/QUOTE]
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Technical Guide: How to tune the VAFC