surely not the volume is too small to provide a functionality like that .A Helmholtz device is there to tune the behaviour of the engine induction/exhaustsystem system at a specific rpm /load combo .turbof1 wrote:It collect some exhaust fumes and releases it when the driver goes off throttle, recovering a tiny bit of of throttle blowing.
http://www.formula1.com/news/technical/ ... 5/919.htmlmarcush. wrote:surely not the volume is too small to provide a functionality like that .A Helmholtz device is there to tune the behaviour of the engine induction/exhaustsystem system at a specific rpm /load combo .turbof1 wrote:It collect some exhaust fumes and releases it when the driver goes off throttle, recovering a tiny bit of of throttle blowing.
One can assume the chosen exhaust does have a peak or a dip in performance at some point of the usable power range affecting car performance /driveability ..it is a ways of tuning the exhaust pulses .
With the Helmholtz setup you can get rid of the dip or a unwanted peak -it is crude but effective -but only at a certain point of the useable range of the engine ..but as variable intake length and exhaust are outlawed you use what is allowed...
In a nutshell:the volume of the he Helmholtz resonator is how big? maybe 0,5 liter..how many engine revolutions would it take to empty that chamber when the throttle is closed? the effect of maintaining a flow after shutting off the flow is zero.turbof1 wrote:http://www.formula1.com/news/technical/ ... 5/919.htmlmarcush. wrote:surely not the volume is too small to provide a functionality like that .A Helmholtz device is there to tune the behaviour of the engine induction/exhaustsystem system at a specific rpm /load combo .turbof1 wrote:It collect some exhaust fumes and releases it when the driver goes off throttle, recovering a tiny bit of of throttle blowing.
One can assume the chosen exhaust does have a peak or a dip in performance at some point of the usable power range affecting car performance /driveability ..it is a ways of tuning the exhaust pulses .
With the Helmholtz setup you can get rid of the dip or a unwanted peak -it is crude but effective -but only at a certain point of the useable range of the engine ..but as variable intake length and exhaust are outlawed you use what is allowed...
wesley123 wrote:afaik it adds a bit of a "step" in exhaust flow. When throttle closes the chamber wil empty, giving it less of a sudden on/off effect of the Coanda. It is not much, but it adds drivability because the difference between on/off throttle becomes more smooth.