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Miscellaneous Automotive
Car Performance & Repair
Overdrive crank pulleys?
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<blockquote data-quote="adulbrich" data-source="post: 8466835" data-attributes="member: 661255"><p>Changing the crank pulley wouldn't change the idle speed of the engine, but it would change the pulley ratio and change how fast the alternators were spinning.</p><p></p><p>I assume you mean 10% at highway speeds. The fastest I normally go is 70, which is around 2.5k rpm. 100mph is a little over 3k rpm iirc</p><p></p><p>An electric "ram air" supercharger? I don't feel like those really do anything if this is what you mean:</p><p></p><p><img src="http://thumbs3.ebaystatic.com/d/l225/m/mu2o05OG1wnRuc-d399o8Gg.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p>That's an underdrive crank pulley, if I was trying to get as much horsepower to the wheels as possible. That would make the alternators spin even slower</p><p></p><p></p><p>To open up your throttle body? I wouldn't want to use an electric cylinder for that</p></blockquote><p></p>
[QUOTE="adulbrich, post: 8466835, member: 661255"] Changing the crank pulley wouldn't change the idle speed of the engine, but it would change the pulley ratio and change how fast the alternators were spinning. I assume you mean 10% at highway speeds. The fastest I normally go is 70, which is around 2.5k rpm. 100mph is a little over 3k rpm iirc An electric "ram air" supercharger? I don't feel like those really do anything if this is what you mean: [IMG]http://thumbs3.ebaystatic.com/d/l225/m/mu2o05OG1wnRuc-d399o8Gg.jpg[/IMG] That's an underdrive crank pulley, if I was trying to get as much horsepower to the wheels as possible. That would make the alternators spin even slower To open up your throttle body? I wouldn't want to use an electric cylinder for that [/QUOTE]
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Overdrive crank pulleys?
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