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Old 09-29-2020, 09:53 AM   #138
Irace86.2.0
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Quote:
Originally Posted by Spuds View Post
I think you meant "in parallel" based on the pictures?
All the exhaust of the 3 cylinders via 3 exhaust valves is going to one turbo at low rpms then all the exhaust via 6 exhaust valves goes to both turbos at high rpms. This is one of the benefits of Freevalve, which is the ultimate control of the system without the need for butterfly valves or other complicated actuators.

https://www.koenigsegg.com/gemera/ti...-giant-engine/

Quote:
Quite simply, one turbo is connected to three exhaust valves – one from each cylinder. The second turbo is connected to the other three exhaust valves. During low rpm and part to high load, all exhaust gasses are pushed to only one turbo, by only opening one exhaust valve per cylinder – thereby doubling the exhaust gases to that turbine. When adequate boost is reached, the second exhaust valve is opened to start the second turbo.
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