Quote:
Originally Posted by Brett Allan
The way I understand it and I guess nut shelled ;
A twin scroll design essentially splits the exhaust gasses going into the turbo in order to combat the exhaust gasses from opposing combustion strokes colliding with each other.
Essentially it reduces lag, increases flow into the turbo and produces better torque.
Only the JDM STI were factory fitted with them afaik.
using the Perth-WRX mobile app
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i thought the turbine housing was split into 2 sections. one has a small A/R to get the turbo spinning. And the other section has a large A/R for more peak flow. Dunno if this is correct, just how i imagined it would work?