Turbo Bark " how bad is it" - Page 4 - Dodge Diesel - Diesel Truck Resource Forums



3rd Gen High Performance and Accessories (5.9L Only) Talk about Dodge/Cummins aftermarket products for third generation trucks here. Can include high-performance mods, or general accessories. THIS IS FOR THE 5.9L ONLY!

Turbo Bark " how bad is it"

Reply
 
 
 
Thread Tools Search this Thread
Old 10-15-2007, 10:02 AM   #46  
Banned
 
CamperAndy's Avatar
 
Join Date: Apr 2007
Location: Coeur d'Alene ID
Posts: 2,283
Quote:
Originally Posted by RoadRacer View Post
Been hanging around here for several months now and haven't made many contributions as I have found out that when you contradict someone or try to answer a question that sometimes you get your wagon painted red.

However since this turbo bark situation has came up I will try and give a little insight.I really wonder why this has not came up earlier and I hardly ever hear of anyone running a "BOV"

A bov is the easiest way to help save stress on your turbo vanes and shafts and not to mention your TBI.As in when you are under hard WOT acceleration and suddenly come off the pedal and the butterfly slams shut your turbo is still under full spool and cranking out how much psi and rpms your engine is venting into the exhaust side of your windmaker and this air has to go somewhere.So it tries to back up as fast as it is coming in.Well you get the picture.That bark noise is probably coming from where you have your air induction plastic,rubber,whatever mounted to metal via a screw clamp.It will cause a boost leak or cause some little or major damage depending on just how many rpms you are turning and how much boost.A bov or pressure relief valve vents this incoming rush of air and relieves the pressure you are trying to cram down your now closed TB and all moving parts are happy and have no stress put on them.

My little Dodge Neon with a 122 cid engine had 450 hp with a HRC stage IV Mitsubishi super 20 G turbo and was equipped with a GReddy type S bov when you let off the loud pedal it sounded like you done ran over a 400 pound tom cats tail.So that so called turbo bark you are hearing is high pressure air trying it's best to explode something in between your turbo i/c air pipes and what else ever you have stuck in there to get in it's way.Figure if you have enough psi to blow a head gasket then that stuff has to go somewhere.A good bov will help save a lot of expensive parts.I mounted mine right before the air charge went into the TB and right after it came out of the i/c.

BTW,DTR you never did get back with me on those parts I called you about last week.Remember me??Redneck from eastern KY pounding down the Buds.
Not to say you are going to get your wagon painted red but your gasser does not operate the same as the CTD.

First there is no butter fly valve in a CTD.

Second the cause of turbo surge is due to the sudden loss of drive force on the turbine when you let off the throttle quickly. As long as the drive force is greater then the compressor load air will move in the correct direction. Once there is a sudden loss of drive force the compressor load will cause a rapid deceleration of the turbo. The volume of air in the IC and piping between the compressor and intake valve will go the path of least resistance and that is back out the intake. Thrust loads shift and this can hammer the bearings. Also the compressor vanes are stress for compression not the other way around so you can bend the vane tips.
CamperAndy is offline   Reply With Quote
Old 10-17-2007, 07:06 AM   #47  
Registered User
 
darrenb's Avatar
 
Join Date: Oct 2006
Location: Big Island, Hawaii
Posts: 502
Quote:
Originally Posted by darrenb View Post
is "turbo bark" the "pssshht" sound when releasing throttle under acceleration to clutch and shift? if so, it doesn't sound like a "bark".
....well is it???
darrenb is offline   Reply With Quote
Old 10-17-2007, 07:33 AM   #48  
Registered User
 
Join Date: Dec 2003
Location: weston,wv
Posts: 325
yup same thing ... just not quite as bad as the WOOOF!! you get with a larger charger and bhaf
2broke2smoke is offline   Reply With Quote
Old 10-17-2007, 10:45 AM   #49  
Registered User
Thread Starter
 
06RED-BARON's Avatar
 
Join Date: Apr 2007
Location: Lethbridge, Alberta..
Posts: 514
With all these answers and suggestions, what is the fail safe fix of this annoying sound?? It is really starting to **** me off, i always hear it when climbing this one hill in my home town, same spot too. anyway love to get rid of this problem.. If the bov is the answer where do i get one and how hard is it to install?? Or sould i just go get a new turbo??
06RED-BARON is offline   Reply With Quote
Old 12-12-2017, 12:14 AM   #50  
Registered User
 
Join Date: Dec 2017
Posts: 1
Turbo Bark

Turbo bark is caused by a sudden lift from the throttle. The pressure built from turbo boost in the intake manifold has no place to go right away so it goes "backwards" through the system thus spinning the turbo in the opposite direction. That's not a good thing. It can cause the turbo shaft to twist and break.
Kwenton Payne is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
It's the "Where in the world is Bark today" breakroom. Totallyrad Other 86 10-05-2013 10:15 PM
possible anti-turbo "bark" idia 1992gen1_fan 1st Gen. Ram - All Topics 8 04-28-2011 06:50 PM
Turbo "Bark" murphy41 12 Valve Engine and Drivetrain 4 11-27-2008 09:13 PM
What does "turbo bark" sound like? OldRam 1st Gen. Ram - All Topics 13 02-16-2006 06:41 AM
BAD Turbo! BAD BAD Turbo!!! C Pierce 1st Gen. Ram - All Topics 20 03-21-2005 08:41 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 04:37 PM.


Copyright 2017, DieselTruckResource.com
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.