So, in my defense, I've only driven my Z06 three times and this may be a stupid question. But I hope not.
First off - the car is brand new 2018 Z06 7M.
The first drive, the couple hours home from the dealer I just took it easy to get used to stuff. Left it in Touring mode the whole way. It was pretty chilly and I figured intervention may be appreciated at some point along the way. Once I got close to home, I popped it into Sport Mode to bump up the noise level in town a notch. I love that sound!! No issues that drive.
A couple evenings later, went for a nice evening cruise. Had the car in Sport Mode from the start. After a length of boring road (couple km) at low/no throttle, I noticed the butterflies close and it went quiet. Tried burping the throttle a couple times, and it stayed quiet. Arrived at a destination and shut down for a few minutes. When I started up again, my beloved noise was back. It stayed that way for the rest of the night.
My next ride several nights later, same route, same conditions, same issue. But with one difference - this time when it went quiet, I gave the throttle a good wack and they opened back up again.
My question - When in Sport Mode, do the butterflies ever close on purpose? Or could I have an issue with mine? I assume they are vacuum actuated, haven't really looked into it yet. A small leak of some sort could let the valve close (if they are sprung to fail closed?) I'm hoping for a little insight prior to my first service at 800km - see if it's an issue I need to have them look at.
Thanks
First off - the car is brand new 2018 Z06 7M.
The first drive, the couple hours home from the dealer I just took it easy to get used to stuff. Left it in Touring mode the whole way. It was pretty chilly and I figured intervention may be appreciated at some point along the way. Once I got close to home, I popped it into Sport Mode to bump up the noise level in town a notch. I love that sound!! No issues that drive.
A couple evenings later, went for a nice evening cruise. Had the car in Sport Mode from the start. After a length of boring road (couple km) at low/no throttle, I noticed the butterflies close and it went quiet. Tried burping the throttle a couple times, and it stayed quiet. Arrived at a destination and shut down for a few minutes. When I started up again, my beloved noise was back. It stayed that way for the rest of the night.
My next ride several nights later, same route, same conditions, same issue. But with one difference - this time when it went quiet, I gave the throttle a good wack and they opened back up again.
My question - When in Sport Mode, do the butterflies ever close on purpose? Or could I have an issue with mine? I assume they are vacuum actuated, haven't really looked into it yet. A small leak of some sort could let the valve close (if they are sprung to fail closed?) I'm hoping for a little insight prior to my first service at 800km - see if it's an issue I need to have them look at.
Thanks