Quote:
Originally Posted by K24madness
Great post Jakob!
I’ll add the importance of proper wastegate control increases as the size of the wastegate increases. The bigger the wastegate the more surface area exhaust backpressure has to push on.
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Thanks, and yes exactly! Good you added this!
The need for higher load force on top of membrane increases greatly when the diameter of WG valve increases even a little due to the much larger surface area. Same goes for speed of valve operation needed to close and open bigger valve(s). Like you pointed out ... the importance of proper wastegate control increases as size of WG increases. For this we want/need to use the boost in our advance to fight back on back pressure and keep the WG valve 100% closed until target boost is achieved and we let the solenoid shift ports - only a 4 port valve will help do this if not using an external C02 pressure bottle tank
