What makes them whistle, and how can you make one whistle if it doesn't?
2007-01-15 14:00:47 · 6 answers · asked by Garth C 2 in Cars & Transportation ➔ Maintenance & Repairs
install a whistle on it :)
actually the worn out ones whistle the most
2007-01-15 14:09:12 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The "whistle" between shifts or upon letting off of the accelerator is caused by air escaping the turbine itself. In order to release pressure inside the turbine housing, or "snail", there is a blow off valve. The ones that don't whistle are equipped with an internal type blow off valve that pumps the air back into the intake. The ones that do whistle release the air pressure externally. This can be had for about $100 and maybe one hour time. Any other "Whistling" (i.e. during accel) is caused by the size of the turbine itself. A large one requires longer spool-up time (turbo-lag) and therefore will "whistle" louder during hard acceleration.
2007-01-15 22:12:30 · answer #2 · answered by alcoholfueledinsanity@rogers.com 1 · 0⤊ 0⤋
If it's stock (unmodified) then I think it's done purposely. The manufacturers go for the quiet, smooth ride, otherwise someone might gripe about "noise coming from the engine". I never noticed mine until I installed a K & N filter and put on a custom 3" exhaust. Now I hear it all the time :)
2007-01-15 22:25:14 · answer #3 · answered by DialM4Speed 6 · 0⤊ 0⤋
They all whistle, the ones with more boost are louder so you can hear it over the engine.
2007-01-15 22:05:23 · answer #4 · answered by Anonymous · 1⤊ 0⤋
depending who builds then and how the air is sealed inside them
think of a turbo as a large fan blowing a lot of aair into a confined space if there is a tiny leak itll whistle
2007-01-15 22:07:24 · answer #5 · answered by toadyboy 4 · 0⤊ 1⤋
IT ALL DEPENDS ON YOUR PRESSURE RELEASE VALVE
2007-01-15 22:11:07 · answer #6 · answered by Anonymous · 0⤊ 0⤋