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<blockquote data-quote="Powerzone" data-source="post: 557835" data-attributes="member: 9157"><p>So sorry man, must've missed your posting! Too many stars, you don't know which one you're looking at. Tried that before?</p><p>Anyway, adj. cam pulley on ori cam can only shift the max. power band, not actually adding more power. E.g. to enhance bottom end torque, you can advanced the cam timing (preset the adj. pulley to advanced position), and to improve hi-end power (but loses low end) the cam is retarded. Amount of shift not more than +/- 6 deg. measured at the crank. Incidentally, Toyota VVT employs this technique, but with the added advantage of being variable, i.e. initially cam is advanced (for low end power), and gradually it's retarded to get better hi-end power, see? But, of course, the power difference is not that great (compared with VTEC or MIVEC).</p><p>With PZ cams, we already get improved low-mid range torque plus hi-end! So, adj. pulley is not required.</p></blockquote><p></p>
[QUOTE="Powerzone, post: 557835, member: 9157"] So sorry man, must've missed your posting! Too many stars, you don't know which one you're looking at. Tried that before? Anyway, adj. cam pulley on ori cam can only shift the max. power band, not actually adding more power. E.g. to enhance bottom end torque, you can advanced the cam timing (preset the adj. pulley to advanced position), and to improve hi-end power (but loses low end) the cam is retarded. Amount of shift not more than +/- 6 deg. measured at the crank. Incidentally, Toyota VVT employs this technique, but with the added advantage of being variable, i.e. initially cam is advanced (for low end power), and gradually it's retarded to get better hi-end power, see? But, of course, the power difference is not that great (compared with VTEC or MIVEC). With PZ cams, we already get improved low-mid range torque plus hi-end! So, adj. pulley is not required. [/QUOTE]
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