Turbo Noise: sounds like a horn! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

TheTimanator · 03-04-2006, 11:57 PM

when running high boost (10-14 psi) between 4500-6500 rpm. The noise seems to be coming from the exhuast side of the engine. The car still pulls fine, everything seems normal except the loud noise that sounds like a car horn. I have recently replaced ALL of the exhaust gaskets and the noise is still there...although it sounds different since I installed the Greddy Turbo extension.

Anybody got any ideas? Is this normal? I haven't really driven any other turbocharged cars to compare. I have a crappy video that you can hear the noise in but I haven't found a place to host it yet. Thanks guys!

*Sil-Abc* · 03-05-2006, 05:56 AM

a more descriptive break down on the noise would help besides car horn. but check ur gaskets. i recently replaced my gaskets but my turbo inlet gasket already went out and makes a loud noise around high rpms.

Muzzy · 03-05-2006, 02:35 PM

blown turbo!!!! ...or on its way out...thas my guess. if it was an exhaust leak it would sound like a fart...or a ppssstttt followed by a fart. idk....check for shaft play.

TheTimanator · 03-05-2006, 02:56 PM

I'll check the gaskets again...but the noise has been there since for the past 25k miles...(not that I have been driving it at 10 psi or above all that time, just whenever I turned up the boost) I will also check for shaft play as well

I hope the turbo's not going out...I've been spending about $500-1000 every month for the last 3 months trying to keep this thing running!

If anyone knows where I could host this crappy video lmk...that'd be better than any description I could give.

Muzzy · 03-05-2006, 04:12 PM

imagestaion...or putafile i think

TheTimanator · 03-05-2006, 07:47 PM

lets see if this works
http://www.imagestation.com/picture/...6/eff1b50e.mp4

ignore the distortion...

Muzzy · 03-06-2006, 01:12 PM

would help if it wasnt MP4

Pank · 03-06-2006, 02:16 PM

Quote:

Originally Posted by Muzzy

if it was an exhaust leak it would sound like a fart

Thats what mine sounds like

...

TheTimanator · 03-06-2006, 03:17 PM

Quote:

Originally Posted by Muzzy

would help if it wasnt MP4

but you can still hear it right? the video portion is irrelevant...

Muzzy · 03-06-2006, 08:33 PM

lmao!!! it really does sound like a horn!!! ...wow...never heard that b4.
all i can say is check 4 shaft play

03-04-2006, 11:57 PM	#1
TheTimanator Post Whore! Join Date: Apr 2002 Location: Nashville Age: 41 Posts: 2,535 Trader Rating: (1) Rides Gallery: TheTimanator Feedback Score: 1 reviews	Turbo Noise: sounds like a horn! when running high boost (10-14 psi) between 4500-6500 rpm. The noise seems to be coming from the exhuast side of the engine. The car still pulls fine, everything seems normal except the loud noise that sounds like a car horn. I have recently replaced ALL of the exhaust gaskets and the noise is still there...although it sounds different since I installed the Greddy Turbo extension. Anybody got any ideas? Is this normal? I haven't really driven any other turbocharged cars to compare. I have a crappy video that you can hear the noise in but I haven't found a place to host it yet. Thanks guys! __________________ 89 S13 hatch/////98 Subaru 2.5RS

03-05-2006, 05:56 AM	#2
Sil-Abc Premium Member Join Date: Jul 2003 Location: Downtown LA Age: 39 Posts: 2,549 Trader Rating: (13) Rides Gallery: Sil-Abc Feedback Score: 13 reviews	a more descriptive break down on the noise would help besides car horn. but check ur gaskets. i recently replaced my gaskets but my turbo inlet gasket already went out and makes a loud noise around high rpms. __________________ IM JON WAYNE ESQ.... bitch

03-05-2006, 02:35 PM	#3
Muzzy Zilvia FREAK! Join Date: Jan 2003 Location: TX Posts: 1,555 Trader Rating: (0) Feedback Score: 0 reviews	blown turbo!!!! ...or on its way out...thas my guess. if it was an exhaust leak it would sound like a fart...or a ppssstttt followed by a fart. idk....check for shaft play. __________________ lemme have a dollar

03-05-2006, 02:56 PM	#4
TheTimanator Post Whore! Join Date: Apr 2002 Location: Nashville Age: 41 Posts: 2,535 Trader Rating: (1) Rides Gallery: TheTimanator Feedback Score: 1 reviews	I'll check the gaskets again...but the noise has been there since for the past 25k miles...(not that I have been driving it at 10 psi or above all that time, just whenever I turned up the boost) I will also check for shaft play as well I hope the turbo's not going out...I've been spending about $500-1000 every month for the last 3 months trying to keep this thing running! If anyone knows where I could host this crappy video lmk...that'd be better than any description I could give. __________________ 89 S13 hatch/////98 Subaru 2.5RS

03-05-2006, 04:12 PM	#5
Muzzy Zilvia FREAK! Join Date: Jan 2003 Location: TX Posts: 1,555 Trader Rating: (0) Feedback Score: 0 reviews	imagestaion...or putafile i think __________________ lemme have a dollar

03-05-2006, 07:47 PM	#6
TheTimanator Post Whore! Join Date: Apr 2002 Location: Nashville Age: 41 Posts: 2,535 Trader Rating: (1) Rides Gallery: TheTimanator Feedback Score: 1 reviews	lets see if this works http://www.imagestation.com/picture/...6/eff1b50e.mp4 ignore the distortion... __________________ 89 S13 hatch/////98 Subaru 2.5RS

03-06-2006, 01:12 PM	#7
Muzzy Zilvia FREAK! Join Date: Jan 2003 Location: TX Posts: 1,555 Trader Rating: (0) Feedback Score: 0 reviews	would help if it wasnt MP4 __________________ lemme have a dollar

03-06-2006, 08:33 PM	#10
Muzzy Zilvia FREAK! Join Date: Jan 2003 Location: TX Posts: 1,555 Trader Rating: (0) Feedback Score: 0 reviews	lmao!!! it really does sound like a horn!!! ...wow...never heard that b4. all i can say is check 4 shaft play __________________ lemme have a dollar