Ran the race at average rpm of 7100 but turbulence was bad that day so it bounced around a bit. WOT & best power mixture gives about 7250. Saw no sign of WP cavitation but I do use the Racing Beat underspeed pulley on the E-shaft. Tracy Tracy and All,
Now that the 2.85 RD1C is looking good do you think we should
address the question of water pump speeds. With the Racing Beat
eccentric shaft pulley the pump is seeing approximately the same
RPM as the engine. As I recall the stock pump begins to cavitate
as it approaches 7000 RPM. Can you tell us what engine RPM you
were running at the Sun 100?
Kelly Troyer
(Thrilled at the performance of the RD1C)
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Dyke Delta/13B/RD1C/EC2 (Eventually)
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