Turbo Bark - Ford Powerstroke Diesel Forum

6.4L Performance Parts Discussion What has or has not worked for you?

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post #1 of 19 Old 02-11-2010, 03:53 AM Thread Starter
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Turbo Bark

Is anyone noticing any turbo bark on there 250 spartan tune? I notice it around 2000 rpms when I let off the throttle. It is only during mild driving.

AKA dmaxfan
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post #2 of 19 Old 02-11-2010, 04:11 AM
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how do you describe turbo bark?

08 250
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post #3 of 19 Old 02-11-2010, 04:15 AM Thread Starter
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When you let off the throttle, you hear a woop woop woop. My 04 LB7 Duramax would do it if I was powerbraking and let off the throttle real fast.The duramax was loud. The powerstroke bark is real faint, but it's definatly there. Turbo bark is caused when the flow of air goes the wrong way. It puts the shaft in a bind and could break it.

AKA dmaxfan
2011 F250 Lariat loaded
2010 F350 King Ranch Traded
2008 2500 Z71 GMC Black Crew Cab, PPE xcellerator
2006 LBZ 2500 4x4 GMC White Crew Cab, PPE xcellerator, 6" BDS lift, 18" procomp extreme alloy, 35/12.5/18 Toyo MTs
2004 LB7 4x4 GMC Sierra Sport Red Metallic- SOLD@72,500 miles
Ext. Cab Short Box
Predator Programmer MBRP 4" S.S. Exhaust
K&N Air intake & Bilsteins
ISSPRO Turbo & Exhaust gauges

Last edited by Serial Fordicator; 02-11-2010 at 04:20 AM.
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post #4 of 19 Old 02-11-2010, 05:15 AM
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Turbo bark is the reason we are installing BOV's on alot of 6.4's.

-John
Rudy's Diesel Performance - 919-383-9300 - Diesel Tech

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post #5 of 19 Old 02-11-2010, 05:21 AM
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if the "Surge" was an issue then ford would have put a BOV on these trucks stock. to my understanding, its not an issue on our trucks. Mine does it all the time. I've got a turbo 4cyl that i removed the BOV on because its an auto and it surges all the time as well. Yes it could cause the shaft in the turbo to break, but its pretty rare.

You only really need a BOV on stick car/truck. Even then on these trucks they don't surge enough to cause a problem.

-Aaron

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post #6 of 19 Old 02-11-2010, 08:00 AM
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yeah, thats compressor surge. I wouldn't worry about it unless you're doing it constantly. Mine might do it when i'm off-road or breaking through snow, but normal driving I never hear it.

08 250
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post #7 of 19 Old 02-11-2010, 09:56 AM Thread Starter
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I can hear it from time to time during normal driving

AKA dmaxfan
2011 F250 Lariat loaded
2010 F350 King Ranch Traded
2008 2500 Z71 GMC Black Crew Cab, PPE xcellerator
2006 LBZ 2500 4x4 GMC White Crew Cab, PPE xcellerator, 6" BDS lift, 18" procomp extreme alloy, 35/12.5/18 Toyo MTs
2004 LB7 4x4 GMC Sierra Sport Red Metallic- SOLD@72,500 miles
Ext. Cab Short Box
Predator Programmer MBRP 4" S.S. Exhaust
K&N Air intake & Bilsteins
ISSPRO Turbo & Exhaust gauges
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post #8 of 19 Old 02-11-2010, 10:02 AM
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Compressor surge over time can cause damage to the turbo's on a 6.4. Excessive surge will cause damage, whether its a stick or an auto.

Jeff Dodd
spartan_jeff12@yahoo.com

2012 Ford F-250 Lariat CC/SB

Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights
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post #9 of 19 Old 02-11-2010, 10:06 AM
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Our '08 only does it when it's "Cleaning Exhaust Filter".. It does it pretty bad.. Anyone know why it does it more while cleaning rather than the usual whooshing sound? It also has an aftermarket intake...

Ben Conner
LSP Assistant Director

Got every PSD made...
My DD: '13 6.7L with Optimus Prime's wanker still on the exhaust

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post #10 of 19 Old 02-11-2010, 12:26 PM
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I hear this from time to time on my stock 30,000 mile 08 job 1 truck. Dealer told me it was normal.

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