Snap or pop on moderate throttle blip
11-21-2017, 03:17 PM
#1
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Snap or pop on moderate throttle blip
Just took delivery of 991.2 manual gt3 and noticed a fairly pronounced single snap or pop sound when gently to moderately stabbing the throttle (i.e. when rev matching or even at idle). I'm thinking intake is calling for a rush of air or a flapper bottoming out maybe? My 981 cayman s does same thing. Anyone else experiencing this?
And 4000 rpm for 2000 miles...that will be hard.
And 4000 rpm for 2000 miles...that will be hard.
01-31-2018, 01:30 AM
#2
1st Gear
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Snap or pop on throttle blip
I have the same clunk- metal induction intake valve snapping open according to dealer- on throttle blip from idle.
Occurs on revmatching downshifts as well.
My GT3 991.2 is very new, just has 400 miles on it, and I hope I can learn to accept that clunk, because it sure annoys me!
Occurs on revmatching downshifts as well.
My GT3 991.2 is very new, just has 400 miles on it, and I hope I can learn to accept that clunk, because it sure annoys me!
02-27-2018, 09:34 PM
#4
I have the same thing. It’s annoying enough to turn off my Sport button so I don’t hear it on downshifts too. My friends GT3.2 mt does it as well but to a much lesser degree. Hopefully enough people will complain about it that they will come up with a fix. I have it on iPhone video but I don’t know how to post it here.
02-28-2018, 05:02 AM
#5
Drifting
I have the same thing. It’s annoying enough to turn off my Sport button so I don’t hear it on downshifts too. My friends GT3.2 mt does it as well but to a much lesser degree. Hopefully enough people will complain about it that they will come up with a fix. I have it on iPhone video but I don’t know how to post it here.
02-28-2018, 05:04 AM
#6
Race Director
I would like to hear what you all are conveying. I do not hear this but maybe it is there but obviously it does not bother me. Maybe coming from a GT4, w/ rev matching, had the same sound so maybe that is why not noticing
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02-28-2018, 12:17 PM
#9
I never heard this on my GT4. It happen regardless of whether sport is on or off - a quick blip while downshifting seems to trigger it, whether you're doing it with your feet or letting the computer do it for you. It almost sounds like a quick induction, or "whooshing" suction sound. It's very quick so it can sound like a tap or pop. I'll see if I can capture some audio/video as well.
03-02-2018, 06:31 PM
#10
Here is the video of the induction noise. It sounds louder inside. I haven't taken it to the dealer yet to see if they can fix it.
03-02-2018, 09:27 PM
#12
Drifting
Sounds normal to me. It's the throttle body opening and sucking in air under vacuum. The 991.2 GT3 I drove did this. And the 991.1 GT3RS did this. And like every other performance car I've driven has done this. I think it sounds great and makes the driving experience more fun.
03-03-2018, 03:12 AM
#13
Rennlist Member
Sounds normal to me. It's the throttle body opening and sucking in air under vacuum. The 991.2 GT3 I drove did this. And the 991.1 GT3RS did this. And like every other performance car I've driven has done this. I think it sounds great and makes the driving experience more fun.
03-03-2018, 04:55 AM
#15
Sounds normal to me. It's the throttle body opening and sucking in air under vacuum. The 991.2 GT3 I drove did this. And the 991.1 GT3RS did this. And like every other performance car I've driven has done this. I think it sounds great and makes the driving experience more fun.