R56 Turbo whistle/dump sound
#1
Turbo whistle/dump sound
Hi guys,
I've recently bought a 2009 r56 cooper s. I've noticed lately when I back off the throttle and change gears is there is a whistle noise coming from the turbo. The best way I can describe it is it sounds like I have a BOV, but the engine is stock (apart from an alta panel filter).
The car feels a little slower than when I bought it, so I'm thinking maybe some boost is leaking out somewhere?
Any suggestions?
Thanks
Dane
I've recently bought a 2009 r56 cooper s. I've noticed lately when I back off the throttle and change gears is there is a whistle noise coming from the turbo. The best way I can describe it is it sounds like I have a BOV, but the engine is stock (apart from an alta panel filter).
The car feels a little slower than when I bought it, so I'm thinking maybe some boost is leaking out somewhere?
Any suggestions?
Thanks
Dane
#2
With a CAI you will get a BOV sound very audible. Perhaps with the Alta filter you're starting to hear some of that as well. For instance, with a DoS CAI, under full load you can hear the air being sucked into the intake (sounds like you're taking a big deep breath) and then between shifts there is a decently loud blow off.
Here's a video of it:
Does yours sound somewhat similar?
Here's a video of it:
#3
With a CAI you will get a BOV sound very audible. Perhaps with the Alta filter you're starting to hear some of that as well. For instance, with a DoS CAI, under full load you can hear the air being sucked into the intake (sounds like you're taking a big deep breath) and then between shifts there is a decently loud blow off.
Here's a video of it: Video Link: http://www.youtube.com/watch?v=GcuEq3DDA4E Does yours sound somewhat similar?
Here's a video of it: Video Link: http://www.youtube.com/watch?v=GcuEq3DDA4E Does yours sound somewhat similar?
Thanks for your quick response. Yes it does sound a lot like that, but a little more of a whistle when the turbo is spooling.
Considering its only a panel filer in the stock air box I wouldn't expect it to be as loud as it is,
I've got a jcw intake on order from ecs tuning, as well as an alta filter, but seeing I'm in Australia it takes a bit longer to Arrive.
I'm guess I'm just a little scared my turbo is on the way out, or there's a leak somewhere and all my boost is pouring out into the atmosphere haha.
Dane
#4
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Join Date: Nov 2012
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With a CAI you will get a BOV sound very audible. Perhaps with the Alta filter you're starting to hear some of that as well. For instance, with a DoS CAI, under full load you can hear the air being sucked into the intake (sounds like you're taking a big deep breath) and then between shifts there is a decently loud blow off.
Here's a video of it: R56 Mini Cooper S with Defenders of Speed CAI in car footage 1 - YouTube Does yours sound somewhat similar?
Here's a video of it: R56 Mini Cooper S with Defenders of Speed CAI in car footage 1 - YouTube Does yours sound somewhat similar?
I have the alta cai and both hot & cold silicone tubes.
#6
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