2008 F-250 upgraded! - Ford Powerstroke Diesel Forum

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

 
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post #1 of 7 Old 07-12-2012, 08:56 PM Thread Starter
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2008 F-250 upgraded!

I just installed a 4" downpipe back Flo-pro exhaust, AFE 7 layer intake, and a H&S Mini Maxx. The truck was DPF deleted by some "custom" means and had one of those lame DPF-R boxes installed when I bought it, that had to go!!! It is like a new truck!!! I LOVE IT!!!
My only question now is, why does it make the loud noise when you let off the throttle as if there is some kind of pressure relief valve letting loose? I thought these trucks didn't have BOVs.

Head Studs and EGR delete to follow!!
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post #2 of 7 Old 07-12-2012, 09:01 PM
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More than likely its "turbo bark" or one of the oher many names it can be called, most modded diesels do it when you get off the throttle quickly when you are under a load... it's not great for your engine but letting it happen every now and then won't really hurt anything

Jason, But you can call me Sir!!!


2001 F-350 CC Dually~Built and tuned by PHP~572/1161ft lbs fuel only~few LEDs here and there
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post #3 of 7 Old 07-13-2012, 05:37 AM
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Unless you want to make big power, you can save your money and not do headstuds. They are never a bad idea, but the 6.4 doesnt have the issues the 6.0 had. These studs hold up. I would take that money and invest it into an Air dog 2, or a coldside pipe, or full Down pipe. Another good cheap mod is a CCV mod.

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post #4 of 7 Old 07-13-2012, 11:57 AM
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Congrats man, thats a HUGE improvement over the DPF-R offering.

If we can help with an EGR kit, let us know.



ICON Vehicle Dynamics | S&B Intakes | MBRP Exhaust | American Force Wheels | Diamond Eye | AFE Intakes | Carli Suspension | Industrial Injection | Garrett Turbos | FASS | Method Wheels | Bilstein Shocks | Airdog | KMC Wheels | Spartan | RSouth Bend Clutch | SCT | Edge Products | ATS Diesel | Bullydog | BMF Wheels | AMP Research | & much more....

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post #5 of 7 Old 07-13-2012, 02:58 PM
Yeah it's a Turbo Diesel
 
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I had my truck tuned and deleted, with the stock air box, it make that "swoosh" noise your describing.
After I installed the AFE stage 2 intake, it started to make that noise, so I was also wondering what that was! Sounds cool, but idk how good or bad- if any of those- is on the healthiness of the engine.

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post #6 of 7 Old 07-13-2012, 03:40 PM
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It's compressor surge.

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 #7 of 7 Old 07-13-2012, 08:08 PM Thread Starter
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More Info....

So i went to the Ford dealer today to check and see if they had a EGR cooler hose I needed, since I have a "bandaid" hose installed. The dealership i bought it from (not a ford dealer) repaired the exhaust leak it had due to a missing bolt and the stock hose began to leak.
So to continue... I went to the Ford dealer today and had them pull up an Oasis report, my truck has 199K miles and at 132355 it would appear the motor blew and they put in a new short block, heads, EGR valve, housing assembly, rocker arms and radiator hoses! The Venturi Tee and Radiator had been done too. looks like I got a good deal for 19500 out the door with airbags and a B&W Gooseneck!
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