Hard to get truck to boost over 20psi - Ford Powerstroke Diesel Forum

6.0L Performance Parts Discussion What has or has not worked for you?

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post #1 of 23 Old 01-23-2011, 09:19 AM Thread Starter
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Hard to get truck to boost over 20psi

I have noticed that when i get on my truck the boost gauge rarely gets over 20psi. I might hit 30 with a boosted 4x4 launch MAYBE, but very rare. It is the way I drive, or is something up with my truck??

I have tried rolling into the throttle, and stomping on it quick, both seem to produce the same boost levels.

When she does hit 30, the power is unbelievable, and I would like to see more of that!!!

05 F350 Lariat Crew Cab Short Bed, Every option
Mods:
4" turbo back no cat
SCT X2 SRL by Matt @ gear head
325 60 R18 Hankook Dynapro MT's
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post #2 of 23 Old 01-23-2011, 10:38 AM
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2006 KR
4"mbrp no cat
afe stage 2 intake
sct tuner
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post #3 of 23 Old 01-23-2011, 11:29 AM Thread Starter
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so you think the turbo is coked up?

05 F350 Lariat Crew Cab Short Bed, Every option
Mods:
4" turbo back no cat
SCT X2 SRL by Matt @ gear head
325 60 R18 Hankook Dynapro MT's
Glowshift EGT Gauge (The Fun Police)
8" Cage Offroad Lift stacked with 2.5" newton leveling kit
Zoodad
55w 8000k HID's
Deranged driver mod
Custom body damage from wife driving through mcdonalds drivethrough

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post #4 of 23 Old 01-23-2011, 11:35 AM
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Just remember 28lbs boost on a stock motor they will take it for a while you may need ARP studs and your truck could look like this
6 0L Ford Power Stroke Engine Head Bolt Problem Photo 1
2 stroker

06 F350 4x4 PSD Lariat FX4 CC LB
Edge Insight CTS Expandable Pyro
AutoMeter Fuel Pressure Gauge
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post #5 of 23 Old 01-23-2011, 12:30 PM Thread Starter
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I have an unstudded tune, I wasn't sure if the tune was limiting it

05 F350 Lariat Crew Cab Short Bed, Every option
Mods:
4" turbo back no cat
SCT X2 SRL by Matt @ gear head
325 60 R18 Hankook Dynapro MT's
Glowshift EGT Gauge (The Fun Police)
8" Cage Offroad Lift stacked with 2.5" newton leveling kit
Zoodad
55w 8000k HID's
Deranged driver mod
Custom body damage from wife driving through mcdonalds drivethrough

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post #6 of 23 Old 01-23-2011, 12:45 PM
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it very well could be, it's better that way anyways

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2015 F-250 XLT 6.7L

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post #7 of 23 Old 01-23-2011, 12:59 PM
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before studs my srl was producing close to 25

White Early 2004 F250 Harley

Adrenaline hpop, Aeromotive, ARP, BPD, BTS, Carli, Fox, Fuelab, GH/TSD/Wildman, Holders 225/75, KC Turbo, PMF, S&B, Mishimoto rad/ic, 08 axle swap

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post #8 of 23 Old 01-23-2011, 01:07 PM
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You could always pull off the vacum line if the boost means that much to you. I don't think it is real good for it, but it will increase your boost, I have a 6.4 that runs 38 lbs stock so I don't have that problem, I would like to run less boost and try to get better mpg.

scparrish, Nice bulldog.
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post #9 of 23 Old 01-23-2011, 01:50 PM
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I could hit 29lbs all day long with my tunes. Non-studded tunes.

The Mullet Mod
Stock 2005 F-350 4x4
*Afe Intake
*4" TB Exhaust
*Scangauge
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*Bulletproof Diesel oil bypass
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post #10 of 23 Old 01-23-2011, 02:20 PM
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Quote:
Originally Posted by scparrish View Post
before studs my srl was producing close to 25


Mine will hit 25 stock, that correct?

04 F250 PSD Ext cab, 4" Lift 35's, MBRP 4" Turbo Back no cat or muff, Glass tinted. Insight CTS. 100k on the od. SCT with IDP tune.
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