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07-17-2012 06:43 PM #7
In the article, they said they used a Summit 1105. That particular cam is ground on a 114 degree lobe separation angle, so expect it to be more awake on the top end than the bottom. You'll need 10.0:1 static compression ratio for the cam to make good cylinder pressure. Engineer the squish at 0.035" to 0.045" so you can run pump gas without detonation. Put initial spark lead at 16 degrees at the crank, with another 18 degrees in the weights, all in by 2800. If the motor wants to kick back against the starter upon cranking, interrupt the hot wire to the coil and insert a momentary-off switch in the line. Mount the switch so that you can enable it with your left hand while you crank the starter with your right hand. Push the momentary button and while holding it in, key the starter. While the motor is turning over, release both switches and the motor will be running. No sweat.Last edited by techinspector1; 07-17-2012 at 06:50 PM.
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I'm happy to see it back up, sure hope it lasts.
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