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Underdrive Pulleys
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<blockquote data-quote="Alvin" data-source="post: 120851"><p>Underdrive does not mean under size. </p><p>You should never use a smaller size pulley. There are 2 kind of after mkt pulleys aroung.</p><p></p><p>1. Lighten Pulley. There are 3 pulleys for this. Crank, Aircon & Alternator. </p><p>2. Larger diameter plus lighten crank pulley - The larger dia will reduce stress on the crank in rotation mass meaning less energy used to drive the other components. </p><p></p><p>I'm using a no 2 in my MCS. It drive the SC even faster & increase the voltage in the system. I'm reading about about 14amp on my volt meter especially on track. </p><p></p><p>Thk what i said is correct.</p></blockquote><p></p>
[QUOTE="Alvin, post: 120851"] Underdrive does not mean under size. You should never use a smaller size pulley. There are 2 kind of after mkt pulleys aroung. 1. Lighten Pulley. There are 3 pulleys for this. Crank, Aircon & Alternator. 2. Larger diameter plus lighten crank pulley - The larger dia will reduce stress on the crank in rotation mass meaning less energy used to drive the other components. I'm using a no 2 in my MCS. It drive the SC even faster & increase the voltage in the system. I'm reading about about 14amp on my volt meter especially on track. Thk what i said is correct. [/QUOTE]
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