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Old Nov 11, 2006 | 08:53 AM
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IlAureliuslI's Avatar
IlAureliuslI
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Joined: Oct 2004
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Originally Posted by Fritchard
there is no boost at idle, if you did you'd have problems.

But, changing the pulley ratio on a SC can allow for more boost sooner AND more boost up high. If you can fuel/handle the boost, then its a good thing. Also, yes the parasitic drag does increase the faster and harder that the SC has to work AND it highly depends on the particular SC itself on where the mechanical redline is and how shitty the efficiency becomes.
With the Anatox transmission, you'd have boost at idle engine speeds unless it had a neutral it sat in while idling. The idea behind the transmission is obtaining boost down low without having to deal with surpassing the supercharger's maximum speed as your engine's RPM climb. That's why the second gear is there, it prevents that. And I understand parasitic drag increases as a SC spins faster and works harder, but I'd like to know if the parasitic loss would be greater than normal while the Anatov transmission was in first gear. I thought about it like a bike. My peddling represents engine speed and the speed of the rear wheel if the speed of the supercharger. If I want to increase the speed of the rear wheel on a bike without changing the speed of my peddling I'd change gears. I know that when I do that it becomes harder to peddle at the same speed and requires more energy. That's my empirical evidence for thinking that the supercharger in a lower gear would also require more power from the engine to run. Meaning that for those who wanted to run relatively high boost levels, the parasitic loss on the engine may become to great to do so with the transmission.
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