Turbo singing @ idle

[otterdriver]

I have heard a 7.3 PDS (96 ish) with an audible whistle of the turbo around town and at idle.. How is this achieved? I own a 97F250 pretty much stock except for a Banks Git-kit and K&N replacement air filter. Thank you, Chris

[el conquistador]

My idle isn't as high as some, but the gutted kitty and 3" down pipe, more open exhaust will do that on the OBS trucks. Turbo modifications also do this, but i've not got the deep pockets that some have..

[stillstrokinit]

ive got a 96 psd and mine sings you can almost hear the turbo over the truck. The only thing i have is a k&n intake a 3in downpipe and a 4 inch straight pipe turned out in front of the rear tire. the turbo whistles at an idle and when you shut the truck off you can hear the turbo slow down and stop spinning. It also purges loud if i bring it up to 3000 rpm and let off.

[1badpsd]

just cut the cat and muffler off of it

[TxPSD9673]

intake, bigger dp (included in exhaust system), and no cat and muffler or just no cat

[otterdriver]

Thank you Gentlemen, it will be music to my ears when I get it all set up!! Otterdriver

[TxPSD9673]

in the mean time you mean like this??? btw this is an old video with no chip i got one uploading now from today with the TW chip

YouTube - 96' 7.3 Powerstroke straight pipe

[Jarrod B]

man i cant hear my turbo whistle.

[otterdriver]

Thats an awesome sound!!! Thats what I want ! Thanks Tex!!! Chris

[TxPSD9673]

ok heres the new one

YouTube - 96' 7.3 powerstroke w/ TW tunes