Blown Turbo? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Mike, · 04-24-2009, 02:24 PM

So my turbo spools a normal noise untill around 4000 rpms and then it just makes this high pitch whining noise + spooling,
my boost gauge is not hooked up but i know i am still getting boost,
i still get regualr gas milage 350 - 500 kms a tank dependinghow i drive.
93 nissan silvia sr20det.

thanks guys.

dnomyar · 04-24-2009, 10:43 PM

had the same problem not too long ago. i had a boost leak by the turbo.

ZakS13 · 04-24-2009, 11:09 PM

i actually just made a thread about this (should've search eh?)..dnomyar, was the leak on the outlet of the compressor on the turbo? searching said it could be the exhaust manifold to turbo gasket being blown out?

dnomyar · 04-24-2009, 11:14 PM

mine was on the compressor outlet

ZakS13 · 04-24-2009, 11:18 PM

maybe thats where mine is as well..i pulled it off many times but never replaced the gasket. would a permatex gasket maker work or should i get something better? i just ask because i have some laying around..

btw, wouldn't it cause a boost leak symptoms like bucking/sputtering, or is it because the leaks are too small or something?

Mike, · 04-25-2009, 10:20 AM

my car doesnt really sputter at all,
is there any other sign of boost leak? and how expensive is it to get a new turbo gasket and fix my boost leak?

ZakS13 · 04-25-2009, 10:47 AM

i believe the gaskets are like $15 or something like that? i used RTV silicone but can't say if it held up or not as i still have the whining. go to last post and watch video and confirm if it sounds like that.

turbo death whine...? - Supraforums.com

Mike, · 04-25-2009, 10:56 AM

yeah thats kindof the noise,
ill go video tape the sound in a bit here.

dondochaka · 04-25-2009, 11:02 AM

I doubt the compressor wheel would've touched the housings, but just to check, take the inlet elbow off and see if there's any contact between the wheel and the comp. housing.

eliminate problems one by one.

Mike, · 04-25-2009, 11:28 AM

here is the first video of the whine.

YouTube - My Silvia Turbo whine 1

Mike, · 04-25-2009, 11:33 AM

and the second video

YouTube - My Silvia Turbo whine 2

ZakS13 · 04-25-2009, 11:38 AM

all my exhaust bolts are tight on the manifold, O2 housing, and downpipe..replaced the compressor outlet gasket, and there is minimal shaft play. maybe some sort of small leak in the IC piping somewhere?

04-24-2009, 02:24 PM	#1
Mike, Join Date: Mar 2009 Location: Calgary Age: 28 Posts: 16 Trader Rating: (0) Feedback Score: 0 reviews	Blown Turbo? So my turbo spools a normal noise untill around 4000 rpms and then it just makes this high pitch whining noise + spooling, my boost gauge is not hooked up but i know i am still getting boost, i still get regualr gas milage 350 - 500 kms a tank dependinghow i drive. 93 nissan silvia sr20det. thanks guys.

04-25-2009, 11:28 AM	#10
Mike, Join Date: Mar 2009 Location: Calgary Age: 28 Posts: 16 Trader Rating: (0) Feedback Score: 0 reviews	here is the first video of the whine. YouTube - My Silvia Turbo whine 1 Last edited by Mike,; 04-25-2009 at 11:33 AM.. Reason: messed up

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04-24-2009, 10:43 PM	#2
dnomyar Zilvia Member Join Date: Jan 2003 Location: SoCal Posts: 283 Trader Rating: (13) Feedback Score: 13 reviews	had the same problem not too long ago. i had a boost leak by the turbo.

04-24-2009, 11:09 PM	#3
ZakS13 Zilvia Member Join Date: May 2007 Location: Bay City, MI Age: 31 Posts: 193 Trader Rating: (3) Feedback Score: 3 reviews	i actually just made a thread about this (should've search eh?)..dnomyar, was the leak on the outlet of the compressor on the turbo? searching said it could be the exhaust manifold to turbo gasket being blown out?

04-24-2009, 11:14 PM	#4
dnomyar Zilvia Member Join Date: Jan 2003 Location: SoCal Posts: 283 Trader Rating: (13) Feedback Score: 13 reviews	mine was on the compressor outlet

04-24-2009, 11:18 PM	#5
ZakS13 Zilvia Member Join Date: May 2007 Location: Bay City, MI Age: 31 Posts: 193 Trader Rating: (3) Feedback Score: 3 reviews	maybe thats where mine is as well..i pulled it off many times but never replaced the gasket. would a permatex gasket maker work or should i get something better? i just ask because i have some laying around.. btw, wouldn't it cause a boost leak symptoms like bucking/sputtering, or is it because the leaks are too small or something?

04-25-2009, 10:20 AM	#6
Mike, Join Date: Mar 2009 Location: Calgary Age: 28 Posts: 16 Trader Rating: (0) Feedback Score: 0 reviews	my car doesnt really sputter at all, is there any other sign of boost leak? and how expensive is it to get a new turbo gasket and fix my boost leak?

04-25-2009, 10:47 AM	#7
ZakS13 Zilvia Member Join Date: May 2007 Location: Bay City, MI Age: 31 Posts: 193 Trader Rating: (3) Feedback Score: 3 reviews	i believe the gaskets are like $15 or something like that? i used RTV silicone but can't say if it held up or not as i still have the whining. go to last post and watch video and confirm if it sounds like that. turbo death whine...? - Supraforums.com

04-25-2009, 10:56 AM	#8
Mike, Join Date: Mar 2009 Location: Calgary Age: 28 Posts: 16 Trader Rating: (0) Feedback Score: 0 reviews	yeah thats kindof the noise, ill go video tape the sound in a bit here.

04-25-2009, 11:02 AM	#9
dondochaka Banned from the Marketplace Join Date: Apr 2009 Location: OH Age: 39 Posts: 28 Trader Rating: (0) Feedback Score: 0 reviews	I doubt the compressor wheel would've touched the housings, but just to check, take the inlet elbow off and see if there's any contact between the wheel and the comp. housing. eliminate problems one by one.

04-25-2009, 11:33 AM	#11
Mike, Join Date: Mar 2009 Location: Calgary Age: 28 Posts: 16 Trader Rating: (0) Feedback Score: 0 reviews	and the second video YouTube - My Silvia Turbo whine 2

04-25-2009, 11:38 AM	#12
ZakS13 Zilvia Member Join Date: May 2007 Location: Bay City, MI Age: 31 Posts: 193 Trader Rating: (3) Feedback Score: 3 reviews	all my exhaust bolts are tight on the manifold, O2 housing, and downpipe..replaced the compressor outlet gasket, and there is minimal shaft play. maybe some sort of small leak in the IC piping somewhere?