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SVTPerformance's Chain of Restaurants
Pics and Videos Buffet
Ignition timing explained
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<blockquote data-quote="stang910" data-source="post: 15743431" data-attributes="member: 103203"><p>Your video is very confusing, I'm not sure if you don't understand ignition timing or you filmed it wrong. Advanced ignition timing happens BTDC so 20* of timing would be 340* on your compass and not 20* which would be 20* ATDC. Spark happens on the upstroke of the crankshaft because it takes time for the fuel to burn. </p><p></p><p>The more you advance your timing the closer to TDC the fuel ignites on the ATDC side. Advance timing too much and the fuel will ignite BTDC trying to push the piston backwards.</p></blockquote><p></p>
[QUOTE="stang910, post: 15743431, member: 103203"] Your video is very confusing, I'm not sure if you don't understand ignition timing or you filmed it wrong. Advanced ignition timing happens BTDC so 20* of timing would be 340* on your compass and not 20* which would be 20* ATDC. Spark happens on the upstroke of the crankshaft because it takes time for the fuel to burn. The more you advance your timing the closer to TDC the fuel ignites on the ATDC side. Advance timing too much and the fuel will ignite BTDC trying to push the piston backwards. [/QUOTE]
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SVTPerformance's Chain of Restaurants
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Ignition timing explained
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