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?
Golf R has less power now, as with most Ecu tunes you can tune bhp back unless you are under strict co2 limits.
A car like the R8 v10 co2 is so high it makes no odds, a car like the golf R which sells in massive numbers, it seems they had to reduce power to keep the co2 at the level they needed.
I guess every single car will be different depending on target co2 levels for that model.
A car like the R8 v10 co2 is so high it makes no odds, a car like the golf R which sells in massive numbers, it seems they had to reduce power to keep the co2 at the level they needed.
I guess every single car will be different depending on target co2 levels for that model.
Porsche911R said:
Golf R has less power now, as with most Ecu tunes you can tune bhp back unless you are under strict co2 limits.
A car like the R8 v10 co2 is so high it makes no odds, a car like the golf R which sells in massive numbers, it seems they had to reduce power to keep the co2 at the level they needed.
I guess every single car will be different depending on target co2 levels for that model.
I guess that similar to why AM released the cygnetA car like the R8 v10 co2 is so high it makes no odds, a car like the golf R which sells in massive numbers, it seems they had to reduce power to keep the co2 at the level they needed.
I guess every single car will be different depending on target co2 levels for that model.
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.
HokumPokum said:
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.
Its incorporated into a new design Catalytic converter which replaces the existing Cat only unit.s2000db said:
According to today’s Autocar mag, the GPF on the new 992, weigh 20Kg!! That’s a hell of a weight to carry round, plus he also noted the car sounded a lot quieter/refined..
Probably not worth ordering the 4S then...
Also on Autocar online it states that the new BMW 760Li has lost 25HP as a direct result of having the GPF fitted.Probably not worth ordering the 4S then...
anonymous said:
[redacted]
It depends on whether or not they left something on the table pre GPF on whatever engine..In terms of the new R8 the engine was always capable of producing 640PS in the Performante, so it wouldn't be difficult to add power to the base 540PS R8 even with the restrictive filter.On the 991.2GT3 RS however where it was already fully tuned i expect it'll be more difficult to overcome the restriction of the two GPF filters(one on each bank) post WLTP.
Time will tell.!
Gassing Station | Porsche General | Top of Page | What's New | My Stuff