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Speedy Squirrel Speedy Squirrel is offline
Rocket Scientist
 
Join Date: Jun 2008
Location: Detroit
Posts: 898
It's a good point. A smaller compressor does have lower inertia. But the amount is pretty small because it is made from aluminum instead of Nickel/Iron. In the F1 days we did make some Magnesium compressor wheels though, for just the point you are asking about. They weighed like they were made of styrofoam. On a street car though, probably not noticable compared to switching from a 68mm turbine wheel to an 82mm one.
Old 03-21-2010, 02:55 PM
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