Whinning/Whiring noise ? - Dorkiphus.net
Navigation » Dorkiphus.net > Technical & Track Disussions > Porsche Technical Discussions » Whinning/Whiring noise ?

Porsche Technical Discussions Porsche related technical discussions and questions go here.

Reply
Page 1 of 3 1 23
 
Thread Tools Display Modes
  #1  
Old 06-06-2006, 07:56 AM
GoThingNC's Avatar
GoThingNC GoThingNC is offline
Freeloader
  
Join Date: Jan 2006
Location: Raleigh, NC
Posts: 265
GoThingNC
Question Whinning/Whiring noise ?
I have been noticing a loud whining/whirring noise on the targa since I have been driving around more with the windows down/roof off. More like a Turbo winding up whistle type noise.

It happens in all gears from 2800 RPM to 3100 RPM
I took off the alternator belt and the noise is still the same.
I also occurs while stopped in nuetral and does not change when the clutch is depressed.

I had a local pelicanite take a look and he said that the chains sound fine and said that it is a great running motor. We noticed that the whining noise is coming out of the exhaust.

Just wanted to confirm if this noise is normal with the SSI's and the Dansk Sport muffler.

It's nice and quiet if I keep the RPM's over 3100 as long as the local law enforcement is not around.

Thanks !
__________________
John D

82 Rosewood Targa
06 MCS - "TARDIS"
11 VW TDI Sportwagen
Reply With Quote
  #2  
Old 06-06-2006, 08:23 AM
Lucky's Avatar
Lucky Lucky is offline
nothing here, move along
  
Join Date: Dec 2002
Location: Fairfax County, VA
Posts: 1,666
Lucky has three HoF threadsLucky has three HoF threadsLucky has three HoF threads
Default
Those Dansk sport muffs are rather tinny for my tastes... it is probably just the muffler resonating in that RPM range.

Also, what are you doing lugging the engine at 2800 RPM? Once rolling, my car is almost never below 3500.
__________________
-- John

Slowly shopping for a 991 or 981...
'20 RAM 1500 Laramie
'19 X3
'16 Camaro RS
'00 Boxster S
'86 Carrera Coupe
'85 Jaguar XJS v12
'88 Integra RS
'74 Toyota Celica GT
'69 Camaro
Reply With Quote
  #3  
Old 06-06-2006, 08:34 AM
GoThingNC's Avatar
GoThingNC GoThingNC is offline
Freeloader
  
Join Date: Jan 2006
Location: Raleigh, NC
Posts: 265
GoThingNC
Default
Resonating, that's it...

Thanks

I would keep the RPM's higher if I had a snow plow blade attached to the front bumper to push the slow cars out of the way.

My 4 YO daughter has to listen to the Chili Peppers (Californication CD)in the Targa and loves it when the Tach sweeps past 4000
__________________
John D

82 Rosewood Targa
06 MCS - "TARDIS"
11 VW TDI Sportwagen
Reply With Quote
  #4  
Old 06-06-2006, 08:41 AM
Parenn911's Avatar
Parenn911 Parenn911 is offline
Loose Lips Sink Ships
  
Join Date: Jun 2003
Location: Greener pastures
Posts: 5,887
Parenn911 has one HoF thread
Default
You drive below 3000rpm ?? The sound you are hearing is normal, if you like driving your 911 like that.
Reply With Quote
  #5  
Old 06-06-2006, 10:06 AM
BobNovas's Avatar
BobNovas BobNovas is offline
 
Join Date: Dec 2003
Location: Rockville, MD
Posts: 1,475
BobNovas
Default
Quote:
I took off the alternator belt and the noise is still the same.
Hopefully you put it back on?
__________________
88 911
00 Boxster S (wife's ride, becoming mine too)

Even duct tape can't fix stupid... but it can muffle the sound!
Reply With Quote
  #6  
Old 06-06-2006, 10:08 AM
GoThingNC's Avatar
GoThingNC GoThingNC is offline
Freeloader
  
Join Date: Jan 2006
Location: Raleigh, NC
Posts: 265
GoThingNC
Default
I placed the belt in the tool pouch to keep it clean
__________________
John D

82 Rosewood Targa
06 MCS - "TARDIS"
11 VW TDI Sportwagen
Reply With Quote
  #7  
Old 06-06-2006, 10:10 AM
TD in DC's Avatar
TD in DC TD in DC is offline
 
Join Date: Mar 2005
Location: In DC of course . . .
Posts: 9,949
TD in DC
Default
I thought all the air cooled guys called that sound "music"
__________________
Thank Me Dammit!
Reply With Quote
  #8  
Old 06-06-2006, 01:33 PM
Vicegrip's Avatar
Vicegrip Vicegrip is offline
Porkchop & SGB for prez!
  
Join Date: Jan 2003
Location: The other Woodstock.
Posts: 13,267
Vicegrip has seven HoF threadsVicegrip has seven HoF threadsVicegrip has seven HoF threadsVicegrip has seven HoF threadsVicegrip has seven HoF threadsVicegrip has seven HoF threads
Default
Dansk muffler = wife in right seat?
__________________
http://vimeo.com/29896988

“Those that can make you believe in absurdities can make you commit atrocities.” Voltaire.

"There is grandeur in this view of life...." Darwin.

The mountains are calling and I must go.

“The earth has music for those who listen”
Shakespeare.

You Matter.
(Until you multiply yourself times the speed of light squared. Then you Energy)

“We’ve got lots of theories, we just don’t have the evidence’.
Reply With Quote
  #9  
Old 06-06-2006, 01:36 PM
GoThingNC's Avatar
GoThingNC GoThingNC is offline
Freeloader
  
Join Date: Jan 2006
Location: Raleigh, NC
Posts: 265
GoThingNC
Default
Quote:
Originally Posted by Kurt Mickelwait
Dansk muffler = wife in right seat?
Can't hear her when she's using the brown paper bag
__________________
John D

82 Rosewood Targa
06 MCS - "TARDIS"
11 VW TDI Sportwagen
Last edited by GoThingNC; 06-07-2006 at 02:00 PM.
Reply With Quote
  #10  
Old 06-07-2006, 02:00 PM
GoThingNC's Avatar
GoThingNC GoThingNC is offline
Freeloader
  
Join Date: Jan 2006
Location: Raleigh, NC
Posts: 265
GoThingNC
Default
Just want to confirm now that the noise I am hearing is not related to the transmision(Needle bearings or pinion shaft spinning) if the car is stopped and in nuetral and that the whining noise does not change when the clutch is depressed while the motor is reved up to and held at a certain RPM, correct?

I apologize if I'm being a pest about this.

Thanks !
__________________
John D

82 Rosewood Targa
06 MCS - "TARDIS"
11 VW TDI Sportwagen
Reply With Quote
Reply
Page 1 of 3 1 23

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump