I barked the turbo today. I was just getting on the throttle in the left lane to pass someone, when someone in the right lane changed into my lane right in front of me.http://www.dieselplace.com/forum/smileys/Angry.gif I got off the throttle very quick, and the turbo barked very loud. I have never heard anything like that before, and I was wondering how fragile these things are. Should I be worried that I hurt the turbo? Milage seems as good as ever, and the boost can still easily hit 28psi, but it blows alot of black smoke at WOT. I just got a new tuner, so the black smoke could have nothing to do with anything wrong with the turbo. It just so happens that today is the first day that the Allison is finished learning the new tune, so I have been flooring it all day. Perhaps it would have smoked just as much yesturday, but until today, I was staying under 3/4 throttle.

If you hurt the turbo I don't think you would see boost pressures like that.


I think Mac has done this a bunch of times so he'd be the one to ask.


Cool though! http://www.dieselplace.com/forum/smileys/Cool.gifhttp://www.dieselplace.com/forum/smileys/Cool.gifhttp://www.dieselplace.com/forum/smileys/Cool.gif

Many have barked the turbo many times. Mine often does it on a crisp upshift during brisk part pedal acceleration.





No immediate damage, BUT the shafts are not the strongest in the world, and it seems they can pop if you beat them too hard...

I've barked mine probably close to 100 times and no problems .........yet http://www.dieselplace.com/forum/smileys/Embarrased.gif

one caveat.....DO NOT screw with the wastegate... that bark is fatal... i know first hand.... 39LBS boost BARK BARK BARK BOOOOOOOOOOM!......TIKUFWA....it go boom!

You can screw with the wastegate if you know what your doing but don't plug or unhook the wastegate line. Barking the turbo hurts nothing.

Currently my wastegate is completly unmodified, but with all the smoke I'm making, I was thinking of trying to get 2-3 more psi out of it to burn some more of that diesel. It's hard to watch all that HP going right out the exhaust pipe, and not to the rear wheels.

You can screw with the wastegate if you know what your doing but don't plug or unhook the wastegate line. Barking the turbo hurts nothing.


And you infer i do not know what i am doing < man?


and FYI barking your turbo IS bad!


Gas or Diesel.

IF you Fuel hard enough you CAN blow right past the gate and stall (BARK) the turbo.


I have seen guys blow turbos up with enough fuel .... go past the gate fast enough and you will see it too.

No I infer that when you blew yours you didn't. Barking will not hurt anything, it probably accelerates wear but then again the turbo isn't made to be run at 39psi either.

No I infer that when you blew yours you didn't. Barking will not hurt anything, it probably accelerates wear but then again the turbo isn't made to be run at 39psi either.


Tell us how you really feel then.


Visegrips are bad... bleeds are bad.


to quote mackin 'Nuff said


But IF YOU FUEL HARD ENOUGH (stacking) you do run the risk of reversion/stall/barking and you can kiss the turbo goodbye... wastegate or not.


then again maybe corky bell doesn't know squat either.

Currently my wastegate is completly unmodified, but with all the smoke I'm making, I was thinking of trying to get 2-3 more psi out of it to burn some more of that diesel. It's hard to watch all that HP going right out the exhaust pipe, and not to the rear wheels.


On the dyno while trying to adjust the Banks Actuator for best power, I actually got to a point where I increased torque but lost a little peak HP. I'm assuming there were some pumping losses that were holding back the peak HP, or a fuel delivery problem as I did not have a lift pump at the time. Mine ran best with the Actuator at approx. 11-12 turns past neutral. This gave me approx. 31-32 psi monitored at the wastegate. Have fun!

You blow one up without dumping rocks in it on programming only and the wastegate completely functioning stock and I'll buy you a new one. Edited by: CPMac

You blow one up without dumping rocks in it on programming only and the wastegate completely functioning stock and I'll buy you a new one.


Promise? turbo #3 is already on its way!

http://bhaner.com/videos/juice.WMV

You've blown up 2 turbos? I know the conditions of the first, what about the second?

Towing, loaded, boxes on high ...too much low boost fuelling, under acceleration...allison shifts from 3-4 boom.


'Nuff said

You've blown up 2 turbos? I know the conditions of the first, what about the second?





Had i been psychic, i coulda just bought 2 from GM or gotten a BOV!

You blow one up without dumping rocks in it on programming only and the wastegate completely functioning stock and I'll buy you a new one.


What are you planning for next month? He should be ready for #3 by then. I am going up to help him change it out. Wanna come?

There has got to be something else because turbo's won't blow with a stack pulling trailers. What would a BOV do to help?

BOV will help relieve the pressure backwave from the compressor stage of the housing when the throttle is closed or decelleration on a shift to the next gear.


It vents drom the discharge tube to the atmosphere at a preset limit and can either be solenoid gov/actuated or done mechanically by springs.


Think of it in terms as a wastegate for the intake side of your turbo.

I know what it is and how it works but I still don't think it would be any easier on a turbo. Dumping it would cause as much imbalance as your "backwave".

Again what else are you doing besides stacking? What boost are you having issues at?

I know this is a bit of a different situation... but this shows how the problem is solved on our Cummins powered trucks. Pay close attention to the sounds at the end of the pulls. You may need to right click and save as to view the videos.


What happens when you drop 50# of boost without a BOV. (7.9 MB)


http://www.bhaner.com/videos/lynden5_04/Green_dodge.mpg


What happens when you drop 50# of bost with a BOV. (15.8MB)


http://www.bhaner.com/videos/lynden5_04/Chris_from_BD.mpgEdited by: bhaner

Are we still talking stock turbo's on a Duramax or a Cummins turbo on a Duramax?

I can't pull up either video.

Neither of those links work.

On the dyno while trying to adjust the Banks Actuator for best power, I actually got to a point where I increased torque but lost a little peak HP. I'm assuming there were some pumping losses that were holding back the peak HP, or a fuel delivery problem as I did not have a lift pump at the time. Mine ran best with the Actuator at approx. 11-12 turns past neutral. This gave me approx. 31-32 psi monitored at the wastegate. Have fun!





I've been undecided on the Banks Actuator for quite a while, but I somehow always thought that there was power to be made from where I am at now to the 31-32psi range. I think you've pushed me over the edge, and I'm going to have to try one. Looks like I'll need a new boost guage too, as mine only goes to 30psi.

I know what it is and how it works but I still don't think it would be any easier on a turbo. Dumping it would cause as much imbalance as your "backwave".


it is easier from the standpoint that you equalize the pressures between the compressor stage and the exhaust stage under boost and under decel conditions.


No bark = no pressure wave trying to speed up one stage over the other.... causing (among other things) tip shear,shaft failure ,journal fatigue on the center section causing oil blowby....


I know you got the brains, but a BOV WILL be on this new turbo .

Are we still talking stock turbo's on a Duramax or a Cummins turbo on a Duramax?


Just offering a solution to the turbo bark problem. I will let you guys duke it out as to if it causes any damage to your DMX turbos. I know it CAN cause serious damage to the stock turbos on our Cummins trucks. If you have enough fuel.

Neither of those links work.


Sorry, links fixed... Little bit different Link button over here.

Anyone with the brains to blow up 3 turbos and is still planning on replacing it with a stock one is beyond me. The turbo is what needs upgraded to make big hp. Also a BOV will not react fast enough to keep psi's equal.

Links fixed, so my solution is no longer needed. I can't delete this post so I will just edit it and replace verbage with some useless drivel to fill up space.Edited by: Trippin

Again what else are you doing besides stacking? What boost are you having issues at?





Boost measures (post I/C) intake side 34 PSIG...verified on an autometer sprt comp gauge and procomp gauge and a freightliner gauge..... but it will go down after a few seconds... this is known as boost creep when fuelling really hard... but the results are the same... a barking turbo no matter what.





As for what i choose to run and my current power on #2 you'll have to forgive me for not posting it. That was a mistake that i will not revisit sir.

I am running about 31-32 psi completely stock wastegate and turbo, this is in 5th stacked big boxes. I have taken out a turbo, from plugging the wastegate and seeing over 36lbs of boost. I have barked both of them lots of times and I dont think that is what hurts them, its running way too much boost that kills them.

Anyone with the brains to blow up 3 turbos and is still planning on replacing it with a stock one is beyond me. The turbo is what needs upgraded to make big hp. Also a BOV will not react fast enough to keep psi's equal.


A BOV will keep up . you CAN bark a turbo with a virgin gate and blow it up with enough fuel, and IF i choose to put this stock turbo on it WILL BE with a BOV


Might just have to do more digging and get a bigger turbo





Edited by me.... http://www.dieselplace.com/forum/smileys/Embarrased.gif











Edited by: Got Juice?

Now that I have seen the video I can say I have barked mine a couple of times at the drag strip. Coming out of the water box and then having to get out of it to keep from crossing the starting line. http://www.dieselplace.com/forum/smileys/Embarrased.gif

Now that I have seen the video I can say I have barked mine a couple of times at the drag strip. Coming out of the water box and then having to get out of it to keep from crossing the starting line. http://www.dieselplace.com/forum/smileys/Embarrased.gif








That is an easy mistake to make.. i do it too... too often i'm afraidhttp://www.dieselplace.com/forum/smileys/Embarrased.gif

Got juice, how is it that you are getting so much fuel and blowing up turbos with a functioning factory wastegate? What are you running to get so much fuel? http://www.dieselplace.com/forum/smileys/Ermm.gifI havent heard of anyone else taking one out without messing with the wastegate.

i guess i am the only one here thats ever got stuck in the mud........damn ole turbo sounds like a beagle on the hunt when you try to rock it back and forth.....never hurt mine

Got juice, how is it that you are getting so much fuel and blowing up turbos with a functioning factory wastegate? What are you running to get so much fuel? http://www.dieselplace.com/forum/smileys/Ermm.gifI havent heard of anyone else taking one out without messing with the wastegate.


As CPmac says... i must be dumping rocks into it


Must be the bad injector or canadian whisky or whatever other nonsense they can come up with.


Like i said, i posted before what i ran for HP with what i was running for enhancers and i was attacked about that... why add 'fuel' to the HP debate? My last dyno... was bought and paid for and not public. This forum has been a motley mix of equal parts helpful and equal parts absurd. I had my day in the fire for it and i do not plan on packing for that trip again.

i guess i am the only one here thats ever got stuck in the mud........damn ole turbo sounds like a beagle on the hunt when you try to rock it back and forth.....never hurt mine


I've done that lots in snow. LOTS. I have barked it probably 20-30 times.

I see what you are saying. I didnt know if you were running big injectors or just big boxes or something. I am overfueling pretty bad and mine seems to take it just fine. Doesnt mean it will last though.

I see what you are saying. I didnt know if you were running big injectors or just big boxes or something. I am overfueling pretty bad and mine seems to take it just fine. Doesnt mean it will last though.





I am not being priggish, just cautious....PM's here aren't even private... mods have access to them (i should know i moderate 3 other boards) so i am hedging my bet until the next BOMB

I see what you are saying. I didnt know if you were running big injectors or just big boxes or something. I am overfueling pretty bad and mine seems to take it just fine. Doesnt mean it will last though.





I am not being priggish, just cautious....PM's here aren't even private... mods have access to them (i should know i moderate 3 other boards) so i am hedging my bet until the next BOMB





I know one board you moderate on and I GUARANTEE you do NOT have access to users PM's.

Disable Fuel Limiting on a Duramax...har har har


get in , seat belt in, out, in, horn twice, P, N, P, N, parking brake on, lights on, of, on, off. parking brake off, interior lights on then off, then on again, and drive in reverse for 15 miles WOT


he he he

I see what you are saying. I didnt know if you were running big injectors or just big boxes or something. I am overfueling pretty bad and mine seems to take it just fine. Doesnt mean it will last though.





I am not being priggish, just cautious....PM's here aren't even private... mods have access to them (i should know i moderate 3 other boards) so i am hedging my bet until the next BOMB





I know one board you moderate on and I GUARANTEE you do NOT have access to users PM's.





I have it on 2 othershttp://www.dieselplace.com/forum/smileys/Embarrased.gif

[/QUOTE]


I know one board you moderate on and I GUARANTEE you do NOT have access to users PM's.


[/QUOTE]


Thanks for clarification on that one.... my bad lolhttp://www.dieselplace.com/forum/smileys/Embarrased.gif

Are we still talking stock turbo's on a Duramax or a Cummins turbo on a Duramax?


Just offering a solution to the turbo bark problem. I will let you guys duke it out as to if it causes any damage to your DMX turbos. I know it CAN cause serious damage to the stock turbos on our Cummins trucks. If you have enough fuel.





Actuall aren't there a few peeps running a box for the HPCR Cummins that are blowing the snot out of their stock turbos already?

Are we still talking stock turbo's on a Duramax or a Cummins turbo on a Duramax?


Just offering a solution to the turbo bark problem. I will let you guys duke it out as to if it causes any damage to your DMX turbos. I know it CAN cause serious damage to the stock turbos on our Cummins trucks. If you have enough fuel.





Actuall aren't there a few peeps running a box for the HPCR Cummins that are blowing the snot out of their stock turbos already?





Yep! The TST 150hp timing and duration box is a turbo killer. Defuels so hard that it causes even the big boy turbos to pop. Most places are now building new turbos made to take the high drive pressures and sudden drops from defueling.

Lets see you had a dyno run that wasn't accurate and got upset that anyone that knew better questioned you so you went to another dyno and got more accurate results but won't believe them or try and back them or the others up again, and several months later nobody else can duplicate your big #'s. And now you can overfuel more than anyone on the planet and blow turbo's up at will. Sure.

Disable Fuel Limiting on a Duramax...har har har


get in , seat belt in, out, in, horn twice, P, N, P, N, parking brake on, lights on, of, on, off. parking brake off, interior lights on then off, then on again, and drive in reverse for 15 miles WOT


he he he This quote comes from a person that acts upset that this board has absurd content!

Disable Fuel Limiting on a Duramax...har har har


get in , seat belt in, out, in, horn twice, P, N, P, N, parking brake on, lights on, of, on, off. parking brake off, interior lights on then off, then on again, and drive in reverse for 15 miles WOT


he he he


This quote comes from a person that acts upset that this board has absurd content!


I knew that you of all people would appreciate it the mosthttp://www.dieselplace.com/forum/smileys/Clap.gif

Lets see you had a dyno run that wasn't accurate and got upset that anyone that knew better questioned you so you went to another dyno and got more accurate results but won't believe them or try and back them or the others up again, and several months later nobody else can duplicate your big #'s. And now you can overfuel more than anyone on the planet and blow turbo's up at will. Sure.





Right. So what don't you understand about that?


My Dyno numbers are wrong... yup all of them.... i am stock remember..must be my bad injector blowing up turbos...accurate numbers on a dying transmission?...yup whatever.... not putting all the power down makes it accurate...ok then, i'll have to remember that...does spinning on the rollers count too?


Blow it up at will?


I didn't ask for it, it happens... i merely tried to HELP. Barking your turbo is unhealthy for it.... and it IS a matter of time....so now it is BOV time for the turbosEdited by: Got Juice?

I am not being priggish, just cautious....PM's here aren't even private... mods have access to them (i should know i moderate 3 other boards) so i am hedging my bet until the next BOMB





I hate to educate you here, but if you had read anything about WWF you would know that there is no function to read users PM's. The only ones i can read are mine. Nice tryhttp://www.dieselplace.com/forum/smileys/Dead.gif

I am not being priggish, just cautious....PM's here aren't even private... mods have access to them (i should know i moderate 3 other boards) so i am hedging my bet until the next BOMB





I hate to educate you here, but if you had read anything about WWF you would know that there is no function to read users PM's. The only ones i can read are mine. Nice tryhttp://www.dieselplace.com/forum/smileys/Dead.gif





Some software does allow the head admin to view.

Some trucks come out with 544 hp stock but yours didn't.

I see what you are saying. I didnt know if you were running big injectors or just big boxes or something. I am overfueling pretty bad and mine seems to take it just fine. Doesnt mean it will last though.





I am not being priggish, just cautious....PM's here aren't even private... mods have access to them (i should know i moderate 3 other boards) so i am hedging my bet until the next BOMB





I know one board you moderate on and I GUARANTEE you do NOT have access to users PM's.





I have it on 2 othershttp://www.dieselplace.com/forum/smileys/Embarrased.gif





THat is REALLY bad. I can't believe anyone would do that. Really, really sad.

Got Juice, I am not calling you a liar but on the other hand I can't believe that you as a mod would have access to users PM's. Now I am not saying that it can't be done, I am just saying that it shouldn't be done. There is no way in hell Moderators or Administrators for that matter should be reading their users PM's. For that matter, I can't believe that you are telling people, here in public, that you can read users PM's. It is so wrong on so many levels.

Some trucks come out with 544 hp stock but yours didn't.





Jealous?


http://www.dieselplace.com/forum/smileys/Clap.gif

Got Juice, I am not calling you a liar but on the other hand I can't believe that you as a mod would have access to users PM's. Now I am not saying that it can't be done, I am just saying that it shouldn't be done. There is no way in hell Moderators or Administrators for that matter should be reading their users PM's. For that matter, I can't believe that you are telling people, here in public, that you can read users PM's. It is so wrong on so many levels.





Most definately wrong

Alright guys lets agree to disagree on some things... like turbo barking.


Thank you

How about barking frogs?


Spiders?

How about barking frogs?


Spiders?





Wives?


....and get them spiders outta here... I'm "Trippin Out" already!


http://www.dieselplace.com/forum/smileys/Big Smile.gif

i guess i am the only one here thats ever got stuck in the mud........damn ole turbo sounds like a beagle on the hunt when you try to rock it back and forth.....never hurt mine


I've done that lots in snow. LOTS. I have barked it probably 20-30 times.





Me too. http://www.dieselplace.com/forum/smileys/Cry.gif 7 degree farenheight and I was not about to walk. Rocked the truck for 2 or 3 minutes. What really makes it howl is when you jam on the brakes to slow things down so you can move the gear shifter to the other direction while the truck still has momenteum.

Doing donuts in a parking lot in 3rd gear (yeah i know...juvenile at best lol) makes it woof pretty good





Nothing like busting a 'Nut though in these heavy trucks.... really harg on tires thoughhttp://www.dieselplace.com/forum/smileys/Embarrased.gif

Doing donuts in a parking lot in 3rd gear (yeah i know...juvenile at best lol) makes it woof pretty good





Nothing like busting a 'Nut though in these heavy trucks.... really harg on tires thoughhttp://www.dieselplace.com/forum/smileys/Embarrased.gif





hehe try doing it with 1000#'s in the back.....done it once and wont do it again unless I buy stock in goodyearhttp://www.dieselplace.com/forum/smileys/Geek.gif


I have barked mine a few times. Nothing has happend yet i will give you that but I KNOW IT ISNT GOOD FOR IT!!! If someone comes up with a deccent soulution to keep it from barking(besideds refrain from holeshots, dougnuts and other stupididtyhttp://www.dieselplace.com/forum/smileys/Evil Smile.gif ) Then I'm all ears!


So what BOV were you looking at?


This dont really make sense to me.....guys that are ussualy proponents of spend a little more for an ounce of prevention are saying they havent poped one yet so dont worryhttp://www.dieselplace.com/forum/smileys/Confused.gif


Besideds I bet it will really freak out the ricers to have one pop at 30psi.....

Barking is bad! Just because many have done it over and over and have seen no damage, doesn`t mean squat.


And don`t forget, these turbos do blow and will blowhttp://www.dieselplace.com/forum/smileys/Embarrased.gif

So what BOV were you looking at?


Besideds I bet it will really freak out the ricers to have one pop at 30psi.....





This is the BOV that most use.


http://www.bd-power.com/ram/product.php?pn=BD%20TurboGuard&tt=ram
The sound definitely adds to the coolness factor. http://www.dieselplace.com/forum/smileys/Cool.gif You should hear it dump from 40 psi to 20 on every shift! Now If I could only get an in head Jake brake.... I would have all the cool noises I could handle.Edited by: bhaner

625$ ouchhttp://www.dieselplace.com/forum/smileys/Dead.gif Didnt think they were that pricey???

625$ ouchhttp://www.dieselplace.com/forum/smileys/Dead.gif Didnt think they were that pricey???


Cheaper then a new turbo!http://www.dieselplace.com/forum/smileys/Clap.gif

But 625 could go twards a bigger turbo.


I am wondering how a gasser deal would work.....BD seems to allude to having all this circritrty and jive????


Didnt think it was that complicated, have it set at a pressure so it blows off instaed of the turbo barking??? Why all the electronics? And why 625?

I remember barking mine while doing a power brake burnout for the lunchtime audience. Kinda scary sound.

You can use the BOV without all the computer stuff (I think cost is about 500 then)... It will just run off of a micro switch activated when your accelerator pedal returns to the full upright position. However you must install a switch to disable it when you want to run your cruise control.


With the computer control, it allows the BOV to activate when there is any upward movement in the TPS.


The factory spring in the BOV is set to only vent boost down to about 20psi. That way it is that much faster to rebuild boost. This is not ment to be a set high pressure wastegate. It is only made to open when you are dropping boost to save the turbo.Edited by: bhaner

If you ran it off of a micro switch it wouldn't even activate in the conditions got juice described (shifting).


It's only use would be the coolness factor since it cannot keep the pressure's even close to equal all the time when operating a turbo outside of it's intended limits.

If you ran it off of a micro switch it wouldn't even activate in the conditions got juice described (shifting).





That’s why BD is now using the computer control.
I would give BD a call and see if they have a solution to the on shift bark. They may be able to integrate the BOV control into your Allison or on shift defueling that the edge box offers.


With the manual setup it worked well with the 6 speed manual trany when shifting.... or if you needed to get out of the throttle really quick. (Emergency situation)


Edited by: bhaner

I dont get a bark when shifting(that I can tell anywho) but I have talked with BD via thier forums and got a copy of the directions. The whole computer control stuff makes sense. I have barked it by going to about 1/2 throttle before so the micro switch wouldnt work. 625 is still a chuck of changehttp://www.dieselplace.com/forum/smileys/Geek.gif I know I was busting your guys balls before about an ounce of prevention......


Ever since the first time I have tried to be mindfull about coming off the gas slow but still.


Here is a link to my Q http://forum.bd-power.com/showthread.php?s=&threadid=1511 and I have the destructions if anybody wants em. It really looks like a quality peice and i can see the eqpense. But one downside is you also gota get hold of someone to tig it in for you. More expense.


So beings I am a cheapo, any less expensive ideas?

Do you really think the BOV will work with an automatic? http://www.dieselplace.com/forum/smileys/Confused.gif

Do you really think the BOV will work with an automatic? http://www.dieselplace.com/forum/smileys/Confused.gif


The BD truck in the video had an auto. I think they work quite well.

I get turbo bark sometimes when the converter locks in OD, have to be on the throttle just right but it will do it. Its that ATS lockup!

I must have one of them defective turbos then because I have never barked, woofed, sneezed, chirped, farted or any other such turbo noise on the road. I can bark it doing a burnout but that is it. To bark the turbo on an Allison shift you guys must have a monster defuel. http://www.dieselplace.com/forum/smileys/Confused.gif


I guess 34 pounds of boosted GA air don't bark much. http://www.dieselplace.com/forum/smileys/Wink.gif

No defuel at all when mine does it, its just that the rpm drops so quick when the tq converter locks and the boost gets dropped cause rpm dropped.