WLPT and what effects it has on power
Discussion
As I understand it from 1 July 2018, WLPT effects on petrol engines produced all need to have a particulate filter on the exhaust for EU approved cars.
How is this affecting the bhp of cars produced? how are manufacturers producing cars that barely have a drop in power? Take the new Z4 M40i, the U.S version of the car which does not have to comply with particulate filter requirements makes 40hp more than the EU version. I wonder if we are being short changed on the newer cars manufactured after July 2018?
How is this affecting the bhp of cars produced? how are manufacturers producing cars that barely have a drop in power? Take the new Z4 M40i, the U.S version of the car which does not have to comply with particulate filter requirements makes 40hp more than the EU version. I wonder if we are being short changed on the newer cars manufactured after July 2018?
I get it that it's possible to increase boost to compensate on a turbo engine and the willingness to tolerate high emissions can claw back lost HP. But, how can a particulate filter in the exhaust not choke HP? I have no clue where they inserted the filter, but I suspect it'll take a lot to increase the airflow to compensate.
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