DynoSim combinations
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*http://www.amazon.com/Crane-100172-...r/dp/B000CIRW8I | *http://www.amazon.com/Crane-100172-...r/dp/B000CIRW8I | ||
| + | *http://www.summitracing.com/parts/CRN-100172/ | ||
Crane's description says the cam needs a 2500 converter, but with the amount of torque we're gonna produce down low, I'd be thinkin' stock converter and a 3.50 gear. The lobe separation angle of 106 degrees will give us the bottom end bias we need and the 0.450" theoretical lift will work with our stock springs and retainers. Be sure to use feeler gauges between the spring coils at full valve lift to insure that the springs don't stack solid. In theory, they shouldn't, but theory doesn't always agree with reality. Use 16-18 degrees of ignition lead at the crank with an additional amount at the weights to bring the total initial and centrifugal to 34 degrees. That's all you need with these heads. You need more at the crank than you would with a stock cam though, for the motor to idle properly. We need to bring the idle down for use with a stock converter so we don't have to stand on the brake pedal at stoplights. | Crane's description says the cam needs a 2500 converter, but with the amount of torque we're gonna produce down low, I'd be thinkin' stock converter and a 3.50 gear. The lobe separation angle of 106 degrees will give us the bottom end bias we need and the 0.450" theoretical lift will work with our stock springs and retainers. Be sure to use feeler gauges between the spring coils at full valve lift to insure that the springs don't stack solid. In theory, they shouldn't, but theory doesn't always agree with reality. Use 16-18 degrees of ignition lead at the crank with an additional amount at the weights to bring the total initial and centrifugal to 34 degrees. That's all you need with these heads. You need more at the crank than you would with a stock cam though, for the motor to idle properly. We need to bring the idle down for use with a stock converter so we don't have to stand on the brake pedal at stoplights. | ||
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