Just wondering if it could be harmful to the turbo or the motor to bark the turbo? I really dont see how it could be but i have heard of some people breaking the shafts in the HX35 on the older cummins trucks. Just wondering. I think it sounds awesome.

It is a bad idea. It will break the shaft. Just ask gotjuice

how do u exactly go about "barking" it?

Turn your juice up to level 4. Put the truck in 4-hi. Step on the brakes and give it a little throttle-1200-1500rpms. let off of the throttle quickly. You will hear a woop woop woop. If you hear a woop woop bang, read the disclaimer.


Personal disclaimer-I am not liable for blown turbos by this method.

Hmmm :Nonono:

barking turbos is BAD , imagine spinning a fan 120,000rpms and imediatly stoping the blades , the barking you hear is the turbo compresor(blades) wheel cutting through that preasurized air , as it is doing this the compresor wheel is putting all that torque on the shaft and one of two things will eventually happen ,1. either you will snap the center shaft ,....or 2.the center shaft nut will eventually spin off and have the same results as # 1. back out of your burnouts and let off the throttle gradually , dont let off abrubtly , as thats when barking is likely to ocur,

Dmaxfan, I do believe gotjuice's problem was due to spinning the turbo too fast and trying to get way more boost than he should have been. But your right unfortunately, it ain't good for the turbo, but man does it sound awesome. Some situations its kind of hard to keep the turbo from doing so(in the sand dunes, or in mud).

:snipersmi Dmaxfan, I do believe gotjuice's problem was due to spinning the turbo too fast and trying to get way more boost than he should have been. But your right unfortunately, it ain't good for the turbo, but man does it sound awesome. Some situations its kind of hard to keep the turbo from doing so(in the sand dunes, or in mud).

it sounds good to when a shotgun goes of under your hood and you say to your self ,........what the f!@K was that and your truck starts to smoke uncontrolably , and your engine continues to rev up , you cant turn it off with the ignition, before long your engine is running at 5000 rpm on oil alone ,your only hope is the cac fills with oil to choke the engine of air , or cutting the cac hose and pluging it with wood to choke it ,THIS IS NOT A JOKE THIS IS WHAT CAN AND USUALLY WILL HAPPEN I KNOW FIRST HAND, ...........try to back out of heavy acceleration , and make sure you have the latest software upgrades for your tuners , some have corected thier tunes to defuel quicker at let off

:snipersmi

it sounds good to when a shotgun goes of under your hood and you say to your self ,........what the f!@K was that and your truck starts to smoke uncontrolably , and your engine continues to rev up , you cant turn it off with the ignition, before long your engine is running at 5000 rpm on oil alone ,your only hope is the cac fills with oil to choke the engine of air , or cutting the cac hose and pluging it with wood to choke it ,THIS IS NOT A JOKE THIS IS WHAT CAN AND USUALLY WILL HAPPEN I KNOW FIRST HAND, ...........try to back out of heavy acceleration , and make sure you have the latest software upgrades for your tuners , some have corected thier tunes to defuel quicker at let off

Or in my case I can hit the air shut-off valve and kill the engine by taking away its air supply..... :D

I've yet to put it in 4hi...
and only cranked up my juice to 4 once :(
i feel like a *****

Weird though that GM has not had more of these problems though, considering the lb7 engines (or at least mine and a friends) both will bark the turbo when in stock form. I'm not being a wise ass, seriously wonder why there has not been a big issue with this problem, or maybe I just haven't herd of it yet.

I wanna put it in 4hi now...

Or in my case I can hit the air shut-off valve and kill the engine by taking away its air supply..... :D

jeeper
why do you have a air cut off valve ? is it mounted in the cac hose?

DLS64chev
some early 01 had some programing updates from GM , might want to contact your local STEALER and see if they can update your ecm , It realy shouldnt be barking with it stock(no tuner conected at all) , however if it is on a stock setting with the Edge and doing it take the Edge off and see if it still does it , if it does then take it to the STEALER and address it, if it dont address Edge on it

I run a air shut off<demco valve> as well. It is mandatory for a diesel to have one working in the gas & oil industry. Its really nasty to see a diesel without one get a wiff of condensate. I've seen 2 jimmies run until the pans where full of parts. Sorry for the cut in. Good thread bye the way I never thought of the damage that can occur when the throttle is chopped.

A lot of work trucks in the oil fields have air cutoffs. I've only seen a couple mentions of it on the board, and I believe they were all Canadian. Is this a "north of the border" option more than others? I dunno.

My buddies truck is an 04 and it does it as well(stock). When you go from 20psi boost which I am assuming the lb7 gets close to at full throttle, to idle its still going to bark. Especially when the engine and the drive train are loaded heavily,(mud, truck pulling, sand dunes etc). Maybe that is why they went to a vvt with the lly, dont think you can get those to bark, at least not as easily.

lly,s will bark at stock settings too , sometimes worse ,GM even has a tsb out on it and is working to corect it. lb7,s at stock settings dont usually bark ,

My 6 speed manual won't bark, I've done just as stupid of things to my truck as any one else. I dont think that the whole manual drive train can can slow down as fast as the engine can when a torque converter is loaded well. Interesting to hear about the whole barking thing though.

Vrruumm, I would imagine if you were under full load and boost and stabed the clutch it real quick it might do it.

Id like to hear a soundclip of it

Id like to hear a soundclip of it

With or without the 'shotgun' ending?):h

With or without the 'shotgun' ending?):h

I just spit water on the front of my shirt !!!!!!!! did it again JUICE!!!

I just spit water on the front of my shirt !!!!!!!! did it again JUICE!!!

):h LOL ):h

(Racking the shotgun again) who's next!

i think i missed that

Id like to hear a soundclip of it

I can't remember who, but a DP member has a video clip on their website where you can hear it. It is someone who does a lot of pulling and racing.

Also, if you've ever been to tractor pull that included the big "Super Stock" diesels that blow all the black smoke, you've heard it when they shut them down at the end of a pull.










Gary

I wish I could get my wife to bark like a turbo!!!!

now that is a good bark !!:sheephump :horsey: :lol:

I wish I could get my wife to bark like a turbo!!!!


Bring her flowers and ask nicely. :naughty:

Bring her flowers and ask nicely. :naughty:

I could think of a few better ways then that ;)

so thats the sound you hear at the end of all these sled pull videos

am i mistaken or is it the sound like curly off of the three stooges makes? (woobwoobwoobwoob woobwoobwoobwoob)

Here you go... crank up the volume and listen to my turbo bark :ro)

http://jflaplante.com/duramax/Brome20050905_TestPuller_hi.wmv

Man I never new that sound was turbo barkage, I always thought that was something in the tranny freewheeling. I always thought it was a woosh sound or a whirr sound. Now I no for sure luckily I have only done that 2 times on my Duramax and both times have been while powerbraking on the pavement, now on my 6-ho Powerstroke work truck it Barks like that about ten times daily under normal driving what a beater I'm sure it will be getting a new turbo soon.

Thanks for all the replies guys. Ive always heard it wasnt a good idea but it sure does sound sweet:ro) . Its amazing to me how a turbo holds together even under normal operating conditions.

Thanks for all the replies guys. Ive always heard it wasnt a good idea but it sure does sound sweet:ro) . Its amazing to me how a turbo holds together even under normal operating conditions.

Thank you TeddyBear now I know what the hell that sound is. I'll try to do it to the ford more often now):h soon it will -:t J/k I want that beater to return me home everyday.

I love that noise...Thx for the link.

Thanks Maxter----now if I can just resist the urge to hear mine bark like a dog.

I love that noise...Thx for the link.


will you love it after the shotgun precludes it ,-:t you guys just dont get it ,-:t ask JUICE you will spin the center shaft or rip the centershaft nut off and that cool sound will be you explaining to Mr Goodwrench how it happened. seriously I push these factory turbos to the limit , I have seen 40 lbs and it is totally a different world , .....however the factory IHI turbo was not ment to be abused at the leveles we are putting it at . What you dont know is you may see 27lbs of boost on the edge ,(all the better the Edge will read) but , the spikes that you dont see during burnouts and heavy acceleration with let off is in excess of 34 lbs(especially if you have it fully defueled) and the compresor wheel and bearing will eventually fail, I can tell you this , barking the turbo is NOT good no matter how cool it sounds.

And the number of them on Ebay is pretty scarce.

Remanned ones are 1200
NEW ones are 1800

But what the heck.... (rack the slide) NEXT!

Now at the pulls, even when I get the red flag, I try to let go easy but it's not an easy thing to do and it seems to take forever while you dig in the track.

There is an easy way to keep this from happening, at the end of a pull, throw the shifter into neutral just as you are letting off the throttle.