How you can make your turbo make that ‘flutter’ sound?
Ever wondered why or how you can make your turbo make that ‘flutter’ sound? It sounds great doesn’t it?
The only problem is that this flutter is extremely unhealthy for your turbo. The flutter is caused when the throttle is shut and air caught betweent the free-spinning turbo and the closed throttle (when you have no vent ie blow-off valve).
The consequent back pressure forces the air back through the turbine blades. The more technical term for this is ‘cavitation’, which places enormous loads on the turbo and can or more than likely WILL lead to premature wear of the turbo bearings and other load-bearing components.
The simple fix is to simply fit a blow-off valve to your current setup or to make sure the blow-off valve you have selected is correctly matched to the output of the turbo and is working correctly (ie not outside its flow capacity).
So whilst it is a great sound and I absolutely love it myself, it pays to try and rid your system of that sound, unless of course you have deep pockets and don’t mind forking out for new turbos prematurely.