08-21-2015, 11:23 AM
Have you had a mechanical gauge or just electronic ones? Are you referencing your old Scoob too? It's possible the car was just too loud to notice, I can only hear mine doing it with the windows up and the radio turned down.
From what i've been reading it's extremely common with mechanical gauges because you're actually tapping into the manifold and piping boost all the way up into the dashboard where it's measured at the gauge, so at certain throttle positions the turbulence of the air makes the needle vibrate and buzz. On the flip side since you're piping that stuff into the cabin you hear the turbo scroll and diverter valve as clear as a bell, which might get old at some point, but right now it's still fantastically entertaining.
Looks like Lowes has some lawn motor fuel filters that should work to "smooth out" the air in the line, i prefer the idea of trying that over just stuffing some cotton into the line, so I might swing by there this afternoon and pick one up.
From what i've been reading it's extremely common with mechanical gauges because you're actually tapping into the manifold and piping boost all the way up into the dashboard where it's measured at the gauge, so at certain throttle positions the turbulence of the air makes the needle vibrate and buzz. On the flip side since you're piping that stuff into the cabin you hear the turbo scroll and diverter valve as clear as a bell, which might get old at some point, but right now it's still fantastically entertaining.
Looks like Lowes has some lawn motor fuel filters that should work to "smooth out" the air in the line, i prefer the idea of trying that over just stuffing some cotton into the line, so I might swing by there this afternoon and pick one up.
Now: 07 Porsche Cayman S | 18 VW Tiguan
Then: 18 VW GTI Autobahn | 95 BMW M3 | 15 VW GTI SE | 12 Kia Optima SX | 2009 VW GTI | 00 BMW 540i Sport | 90 Mazda Miata | 94 Yamaha FZR600R | 1993 Suzuki GS500E | 2003 BMW 325i | 95 Saab 900S