Though this method delivers an accurate reading, installing a new tach can be confusing because of the different ignition systems used by the OEMs and the aftermarket. In either case, installing the tachometer incorrectly can cause significant damage to both the tach and ignition system. It includes diagrams for common ignition systems, including those used by General Motors, Ford, and Chrysler plus many aftermarket manufacturers. Thanks for your comment. We have a significant database of that information available and would be happy to assist you with any questions that you may have.
Anybody with a modicum of mechanical aptitude can bolt an old-school "roots" type supercharger onto an engine, slap a carburetor on top and call it a day. Roots blowers look cool sticking through the hood of an old muscle car but can't keep up with the centrifugal superchargers popular today. Centrifugal blowers are mechanically identical to turbos but use a belt drive instead of hot exhaust gases to spin the compressor wheel. Carburetors were at one time almost useless for these applications-driveability was poor, and engines tended to explode. However, the newest generation of specialized "blow-through" forced-induction carbs can easily rival fuel injection for power and reliability. Read the supercharger kit instructions-exact installation procedures will vary greatly by engine and kit. You'll need to install the supercharger bracket in place of the existing alternator bracket, install the new supercharger pulley on the crankshaft, bolt the supercharger to the bracket and connect the supercharger to the crankshaft with the supplied belt.
The following specifications are general guidelines offered to aide in building an engine for street use. For more detailed specifications regarding your specific application or for "strip only" use, please consult a professional engine builder. Forged pistons recommended for all applications. Cast and hypereutectic pistons can be used but should be limited to lower horsepower approx hp applications. For pump gas octane applications, a compression ratio of 8. Higher octane fuel will allow you to run higher boost levels, approximately 1 psi for every 2 points of octane.