Thread: Timing light
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Old 12-30-2007, 06:52 PM
tbird430convt tbird430convt is offline
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Default Modern timing lights

Modern timing lights are a big advantage when setting up an old car. When equipped with a digital tach and adjustable timing wheel in the back there is something you can do that couldn't be done when these cars were new. You can set the car for the specified full advance and this is the most important timing setting. Race cars are set for high speed timing not base time. If for example the spec is 38 degrees at 2400 rpm with a new type timing light this can be accomplished. Setting at cruise compenstes for vacuum advance and centrifugal weights. When you set base time at idle at let's say 4 degrees you are assuming that at cruise it will be 38 degrees. Now you can gaurantee it will be 38 degrees.
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