Isaac Marino Bavaresco wrote: > This may not be important at low RPM, but at higher RPM, the faster > the combustion the most efficiency you get. > If the ignition takes too long, the pressure is not at the maximum > when > it would be more effective, that is, in the first 90 degrees of the > down-stroke. If that's the only reason, why can't you just advance the timing to get the same effect? ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .