MSD Ignition Blog

 Do you know what your total timing is set at? One timing setting isn’t ideal for all the different conditions your engine goes through. Cranking, idle, wide-open throttle and various loads all require changes in ignition timing. To adjust for these differences, most distributors are equipped with a centrifugal advance assembly which alters the timing as conditions change. However this require different springs, weights and even stop bushings to get dialed in. MSD’s E-Curve Distributors make setting the centrifugal advance easy – and more accurate. Instead of weights and springs under the rotor of the E-Curve, you’ll find two rotary dials. These allow you to simply select different pre-programmed timing curves that fit your application. There are a variety of curves, from slow advance to quick combined with different amounts and rates of vacuum advance to choose. MSD’s E-Curve Distributors are available for Chevy, Small Block Ford and Small Block Chrysler engines. For more information or to download instructions, check out http://msdperformance.com/product.aspx?id=5411&terms=E-Curve.