TODA valve springs allow maximum lift while preventing valve float which can occur under high rpm, high lift conditions. Their specific spring rates prevents damage to TODA camshafts which may occur as a result of using valve springs that are too stiff. Valve springs that are too stiff may also put additional stress on the timing chain.
TODA valve springs are required when using TODA S2000 camshafts and very beneficial when used with stock camshafts in racing conditions where constant high rpm operation may fatigue the stock valve springs. Coil springs natural frequency have all been optimized.
