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Science & Technology
Increase your gas mileage!
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<blockquote data-quote="kcwildman" data-source="post: 67485" data-attributes="member: 1046"><p>yes it's a pressure issue when the intake and exhaust valves overlap the exiting exhaust gasses ignite the entering intake fuel and blow the top of the engine off. it's called pre-ignition you need to make sure that both valves are closed at top dead center and the intake valve dose not start to open untill at least 1.5-2 degrease later. this was a real issue at the drag strip in the early days of superchargers they have sinse made it manditory to have reinforced strapps going over the top of the motors now if the timing is off even the slightest amount it will blow . there are youtube vids out the wazzoo showing it happen</p></blockquote><p></p>
[QUOTE="kcwildman, post: 67485, member: 1046"] yes it's a pressure issue when the intake and exhaust valves overlap the exiting exhaust gasses ignite the entering intake fuel and blow the top of the engine off. it's called pre-ignition you need to make sure that both valves are closed at top dead center and the intake valve dose not start to open untill at least 1.5-2 degrease later. this was a real issue at the drag strip in the early days of superchargers they have sinse made it manditory to have reinforced strapps going over the top of the motors now if the timing is off even the slightest amount it will blow . there are youtube vids out the wazzoo showing it happen [/QUOTE]
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Increase your gas mileage!
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