![]() Even today, it’s better than most factory units. The original Thunderbolt ignition was a very good CDI & represented the state-of-the-art system from the 1970’s. Although we viewed the attempt as a technical failure, that wasn’t actually the case. Early design attempts offered no Performance advantage over the stock units. Imagine the advantage your engine would have if the timing was automatically RETARDED as the RPM progressively increased!ĭESIGN BACKGROUND: The Thunderbolt replacement has been in the works at HewTech Electronics for nearly 3 years. They will also tell you Advanced Timing quickly turns into a disadvantage as RPM increases, as cylinder pressures and combustion chamber temperatures increase. PERFORMANCE: Any Performance Engine builder and Racer will tell you the advantage of having advanced timing in the Lower & Mid RPM range. ![]() Description A premium ignition upgrade using 21st Century Technology!
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