Exhaust Valve - Disconnect?
#1
Exhaust Valve - Disconnect?
Hello, anyone find a benefit or degradation with performance blocking off the exhaust valves such that they are open at all time?
Lots of discussion on this in the GT3 forums, never personally felt a loss in power with my 991 RS. IMO more about controlling noise vs performance/back pressure.
Thanks!
Mike
Lots of discussion on this in the GT3 forums, never personally felt a loss in power with my 991 RS. IMO more about controlling noise vs performance/back pressure.
Thanks!
Mike
The following users liked this post:
NastyHabits (09-24-2024)
#4
Yep, my 981 CS has the standard GT4 exhaust with the valves and the vacuum lines going to them. Pretty sure they open upon cold start and then close after 30-60 seconds while idling just like the street GT4.
#5
This is a 2019 718 CS MR.
it has a valved exhaust. On my 991 RS I removed the suitcase mufflers and center delete.
The 718 valves seem to operate the same as the street cars. Open on cold start, close then open at a certain rpm.
Was just curious if others plugged the vacuum line and disconnected.
it has a valved exhaust. On my 991 RS I removed the suitcase mufflers and center delete.
The 718 valves seem to operate the same as the street cars. Open on cold start, close then open at a certain rpm.
Was just curious if others plugged the vacuum line and disconnected.