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Speedy Squirrel Speedy Squirrel is offline
Rocket Scientist
Join Date: Jun 2008
Location: Detroit
Posts: 896
Fourwheeler is correct. Energy can be stored in anything rotating according to the formula E=1/2IW^2
E = energy kW
I = rotor inertia Nm/s^2
It is just the flywheel effect. When the BOV closes the stored energy produces boost, which produces exhaust, which produces boost... and so on.

At some point though it would better to have the intercooler and everything to the throttle pressurized so that boost is available as soon as the throttle is open. That point depends on the engine speed and volume of the system.
Old 03-26-2010, 09:39 AM
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