How is compressed air able to spool a turbo instantly but exhaust gases can't ??
So I was reading about Volvo Powerpulse tech https://www.carmagazine.co.uk/car-news/tech/volvos-turbo-lag-solution-is-just-hot-air-car-may-2016/ which uses compressed air stored in a 2.0l tank at 12 bar and is injected into the exhaust manifold to spin a turbo from idling at 20,000rpm to a fully operational 150,000rpm in 0.3sec. How is it possible for compressed air(which cools very quickly when released)to spool a turbo instantly yet exhaust gases which are several 100s of degrees hot and contain far more energy can't ?? #science